Data processing device, data processing method, program and data processing system

Abstract

A data processing device, method, program, and system are provided that accurately identify CO2 emissions caused by livestock excrement. [Solution] The data processing device (2) has a memory unit (22) that stores a first feed coefficient that indicates the nitrogen content in the feces excreted by the livestock and is determined by the type of feed given to the livestock, and a second feed coefficient that indicates the nitrogen content in the urine excreted by the livestock and is determined by the type of feed given to the livestock, a head count determination unit (232) that determines the number of livestock raised in the farm, an emission determination unit (235) that multiplies the determined number of livestock by the stored first feed coefficient to determine the amount of N2O emissions caused by the feces of the multiple livestock, multiplies the determined number of livestock by the stored second feed coefficient to determine the amount of N2O emissions caused by the urine of the multiple livestock, and determines the total CO2 emissions caused by the feces and urine of the multiple livestock based on the N2O emissions caused by the feces and the N2O emissions caused by the urine, and an output unit (236) that outputs the total CO2 emissions.

Description

[Technical Field]

[0001] The present invention relates to a data processing device, a data processing method, a program, and a data processing system. [Background technology]

[0002] BACKGROUND ART A system is known that enables livestock keepers to easily calculate the amount of emission reduction required to utilize the carbon credit system (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7628749 Summary of the Invention [Problem to be solved by the invention]

[0004] The amount of CO2 emissions, a greenhouse gas used to calculate the trading value of carbon credits, is calculated based on, for example, the amount of N2O emissions. N2O emissions are calculated based on the nitrogen content in livestock manure. As described in Patent Document 1, conventional methods have calculated the amount of N2O emissions from livestock based on a fixed nitrogen content without distinguishing between feces and urine.

[0005] However, because the methods for treating feces and urine are different, the N2O emissions from feces and urine are different. For this reason, conventional methods that do not distinguish between feces and urine could not accurately calculate N2O emissions. As a result, there was a problem in that the CO2 emissions used to calculate the trading amount of carbon credits could not be accurately calculated.

[0006] The present invention has been made in consideration of these points, and aims to make it possible to accurately identify the amount of CO2 emissions resulting from livestock excrement. [Means for solving the problem]

[0007] A data processing device according to a first aspect of the present invention has a memory unit that stores a first feed coefficient that indicates the nitrogen content contained in the feces excreted by livestock within a unit period and that is determined by the type of feed given to the livestock, and a second feed coefficient that indicates the nitrogen content contained in the urine excreted by the livestock within a unit period and that is determined by the type of feed given to the livestock; a head count determination unit that determines the number of livestock raised in a farm; an emission amount determination unit that multiplies the head count by the first feed coefficient to determine a first emission amount that is N2O emission caused by the feces of the livestock, and multiplies the head count by the second feed coefficient to determine a second emission amount that is N2O emission caused by the urine of the livestock, and that determines a total CO2 emission amount that is CO2 emission caused by the feces and urine of the livestock based on the first emission amount and the second emission amount; and an output unit that outputs the total CO2 emission amount.

[0008] The data processing device may further have a reception unit that receives input of a feces treatment method and a urine treatment method for the livestock farm, and the memory unit may further store a plurality of first emission factors that are nitrogen emission factors for feces excreted by the livestock, associated with a plurality of feces treatment methods, and may further store a plurality of second emission factors that are nitrogen emission factors for urine excreted by the livestock, associated with a plurality of urine treatment methods, and the emission amount determination unit may determine the first emission amount by multiplying the number of head by the first emission factor stored in the memory unit in association with the feces treatment method received by the reception unit, and may determine the second emission amount by multiplying the number of head by the second emission factor stored in the memory unit in association with the urine treatment method received by the reception unit.

[0009] The emission amount determining unit may determine the total CO2 emission amount by adding up the CO2 emission amount based on the first emission amount and the CO2 emission amount based on the second emission amount.

[0010] The emission amount determining unit may determine the total CO2 emission amount based on a total emission amount obtained by adding up the first emission amount and the second emission amount.

[0011] If the CO2 emission amount based on the N2O emission amount obtained by using the first feed coefficient and the second feed coefficient is equal to or greater than the CO2 emission amount based on the N2O emission amount obtained by using a predetermined feed coefficient, the emission amount determination unit may determine the total CO2 emission amount by multiplying the number of heads by the predetermined feed coefficient.

[0012] The memory unit may further store the type of feed in association with a plurality of weight ranges of the livestock, and the number of head determination unit may determine the number of the livestock belonging to each of the plurality of weight ranges, and the discharge amount determination unit may determine the first discharge amount for each of the plurality of weight ranges by multiplying the number of heads belonging to the weight range determined by the number of head determination unit by the first feed coefficient corresponding to the type of feed associated with that weight range, and may determine the second discharge amount by multiplying the number of heads belonging to the weight range determined by the number of head determination unit by the second feed coefficient corresponding to the type of feed associated with that weight range.

[0013] The memory unit may store the weight ranges of the livestock raised in the breeding houses in association with each of a plurality of breeding houses provided in the breeding farm, and may further store the number of the livestock raised in the breeding house in association with each of the plurality of breeding houses, and the number determination unit may determine the number of the livestock belonging to each of the plurality of weight ranges by adding up the numbers of the livestock stored in the memory unit in association with one or more breeding houses corresponding to each of the plurality of weight ranges.

[0014] The data processing device may further have a receiving unit that receives input of the weight range of the livestock raised in a breeding house and the number of the livestock raised in the breeding house, in association with each of a plurality of breeding houses provided in the breeding farm, and the number determination unit may determine the number of the livestock belonging to each of the plurality of weight ranges by adding up the numbers of the livestock input in association with one or more breeding houses corresponding to each of the plurality of weight ranges.

[0015] The discharge amount specifying unit may update the first discharge amount and the second discharge amount in response to the reception unit receiving an update of the weight range of the livestock raised in a breeding pen.

[0016] The emission amount determination unit may determine the first emission amount and the second emission amount for each of a plurality of periods in which the weight range of the livestock does not change, and determine the total CO2 emission amount based on the plurality of first emission amounts and the plurality of second emission amounts corresponding to the plurality of periods included in a year.

[0017] A data processing method according to a second aspect of the present invention is executed by a computer having a memory unit that stores a first feed coefficient that indicates the nitrogen content contained in the feces excreted by livestock within a unit period and that is determined by the type of feed given to the livestock, and a second feed coefficient that indicates the nitrogen content contained in the urine excreted by the livestock within a unit period and that is determined by the type of feed given to the livestock, the data processing method comprising the steps of: identifying the number of livestock raised in a farm; identifying a first emission amount that is the amount of N2O emissions caused by the feces of the livestock by multiplying the number of livestock by the first feed coefficient; identifying a second emission amount that is the amount of N2O emissions caused by the urine of the livestock by multiplying the number of livestock by the second feed coefficient; identifying a total CO2 emission amount that is the CO2 emission caused by the feces and urine of the livestock based on the first emission amount and the second emission amount; and outputting the total CO2 emission amount.

[0018] A program according to a third aspect of the present invention causes a processor included in an information processing device having a memory unit that stores a first feed coefficient, which is a coefficient indicating the nitrogen content contained in the feces excreted by livestock within a unit period and which is determined by the type of feed given to the livestock, and a second feed coefficient, which is a coefficient indicating the nitrogen content contained in the urine excreted by the livestock within a unit period and which is determined by the type of feed given to the livestock, to function as: a head count determination unit that determines the number of livestock raised in a farm; an emission amount determination unit that determines a first emission amount that is N2O emission caused by the feces of the livestock by multiplying the head count by the first feed coefficient, and determines a second emission amount that is N2O emission caused by the urine of the livestock by multiplying the head count by the second feed coefficient, and determines a total CO2 emission amount that is CO2 emission caused by the feces and urine of the livestock based on the first emission amount and the second emission amount; and an output unit that outputs the total CO2 emission amount.

[0019] a first feed coefficient indicating the nitrogen content of feces excreted by livestock within a unit period and determined by the type of feed given to the livestock; and a second feed coefficient indicating the nitrogen content of urine excreted by the livestock within a unit period and determined by the type of feed given to the livestock; a head count determination unit determining the number of livestock raised in a farm; an emission amount determination unit determining a first emission amount that is N2O emission caused by the feces of the livestock by multiplying the head count by the first feed coefficient, determining a second emission amount that is N2O emission caused by the urine of the livestock by multiplying the head count by the second feed coefficient, and determining a total CO2 emission amount that is CO2 emission caused by the feces and urine of the livestock based on the first emission amount and the second emission amount; and an output unit outputting the total CO2 emission; and the information terminal having a terminal communication unit receiving information indicating the total CO2 emission from the data processing device. [Effects of the Invention]

[0020] The present invention provides an effect of being able to accurately identify the amount of CO2 emissions resulting from livestock excrement. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is a diagram for explaining an overview of a data processing system S. [Figure 2] 10 is a flowchart showing an example of the flow of processing executed by the data processing device 2. [Figure 3] 1 is a diagram illustrating an example of the configuration of an information terminal 1. FIG. [Figure 4] FIG. 2 is a diagram showing an example of the configuration of a data processing device 2 for specifying discharge amounts by type of feces and urine. [Figure 5] FIG. 10 is a diagram showing an example of a weight-based food table. [Figure 6] FIG. 10 is a diagram showing an example of a feed coefficient table. [Figure 7] FIG. 4 is a diagram illustrating an example of an emission coefficient table. [Figure 8] FIG. 10 is a diagram showing an example of a barn-specific weight table. [Figure 9] FIG. 2 is a diagram showing an example of the configuration of a data processing device 2 relating to specifying discharge amounts for each breeding pattern. [Figure 10] FIG. 10 is a diagram showing an example of a breeding pattern table. [Figure 11] FIG. 10 is a diagram illustrating an example of a pattern-specific coefficient table. [Figure 12] FIG. 10 is a diagram showing an example of a head count determination result table. [Figure 13] 1 is a table showing CO2 emissions by breeding pattern. [Figure 14] FIG. 10 is a diagram showing an overview of a first modified example. [Figure 15] FIG. 10 is a diagram showing an overview of a second modified example. DETAILED DESCRIPTION OF THE INVENTION

[0022] [Data Processing System S Overview] Fig. 1 is a diagram illustrating an overview of a data processing system S. Fig. 2 is a flowchart showing an example of the flow of processing executed by a data processing device 2. The data processing system S is a system for identifying CO2 emissions caused by livestock excrement for each barn. Livestock may be, for example, pigs, cows, sheep, chickens, or horses, but in this embodiment, it is mainly assumed that the livestock is pigs.

[0023] A rearing house is a space in a breeding farm for enclosing and managing livestock. The rearing house is a concept that includes, for example, livestock pens and barns, but in this embodiment, an example will be described in which the rearing house is a barn.

[0024] A livestock pen is the smallest unit of space for managing livestock, and is, for example, a space like a private room surrounded by a fence, cage, etc. When the livestock are pigs, the livestock pen is a pigpen. A livestock shed is a space made up of multiple livestock pens (for example, 10 to 50 livestock pens), and is, for example, a building such as a shed located within a breeding farm. When the livestock are pigs, the livestock pen is a pigpen. The type of pigpen may differ depending on the pig rearing period, and there are, for example, farrowing sheds for raising pigs in the lactating period, weaning sheds for raising pigs that have finished the lactating period and started eating feed, and fattening sheds for growing pigs.

[0025] As shown in FIG. 1, a feed tank T for storing feed is provided in a livestock barn. The livestock can consume feed supplied from the feed tank T whenever they like and in the amount they like. The type of feed supplied from the feed tank T may differ for each livestock barn. A camera C for capturing images of the livestock may also be provided in the livestock barn. The camera C may, for example, be fixed to the ceiling of the barn and capture images of the livestock from directly above, or may be provided on the wall of the barn and capture images of the livestock from diagonally above. As will be described later, the data processing system S can identify the number of livestock based on the images captured by the camera C. There is no particular limit to the number of feed tanks T and cameras C provided in one livestock barn.

[0026] Meanwhile, as global warming progresses in recent years, carbon credit initiatives have become more active. Carbon credits are a system in which farmers and other businesses are issued credits equivalent to the amount of CO2 reduction they make when their CO2 emissions fall below their emission allowance (a limit set in advance by the government, etc.), and these credits are purchased by companies and other entities. Companies whose CO2 emissions exceed their allowance can offset the excess CO2 by using the amount of CO2 reduction equivalent to the credits they have purchased. The J-Credit Scheme exists as a system to ensure the quality and reliability of such carbon credit transactions. The J-Credit Scheme is a system in which the government certifies greenhouse gas emission reductions and absorption amounts as credits.

[0027] CO2 emissions are calculated based on, for example, N2O emissions, but N2O emissions are calculated based on the nitrogen content of livestock manure. Traditionally, N2O emissions from livestock manure have been calculated based on a fixed nitrogen content without distinguishing between livestock feces and urine. However, because feces and urine are treated differently, N2O emissions from feces and urine are different. Furthermore, traditionally, N2O emissions from livestock manure have been calculated based on a fixed nitrogen content without distinguishing between rearing patterns, which are a combination of the type of feed given to livestock and the method of manure treatment. However, there are many different rearing patterns in livestock farms, and N2O emissions vary depending on the rearing pattern.

[0028] For this reason, conventional methods that do not distinguish between feces and urine or breeding patterns cannot accurately calculate N2O emissions from livestock manure, and as a result, cannot accurately calculate CO2 emissions used to calculate the trading value of carbon credits.As a result, the calculated CO2 reduction amount is sometimes lower than the actual CO2 reduction amount, which can result in farmers losing money in carbon credit transactions.

[0029] Therefore, the data processing system S calculates the CO2 emissions caused by feces and CO2 emissions caused by urine separately for each rearing pattern. This makes it possible to calculate CO2 emissions with high accuracy, improving the accuracy of the CO2 reduction value that is the subject of trading in carbon credits. As a result, farmers who reduce CO2 emissions are appropriately rewarded, which motivates them to further reduce CO2 emissions.

[0030] The data processing system S includes an information terminal 1 and a data processing device 2. The information terminal 1 is an information terminal used by a livestock manager who manages the raising of livestock, and is, for example, a personal computer, tablet, or smartphone. The data processing device 2 is a computer that specifies CO2 emissions, and is, for example, a server. The information terminal 1 and the data processing device 2 are capable of communicating with each other.

[0031] 1 and 2, the basic operation of the data processing system S will be described below. First, an imaging unit (for example, camera C) installed in the livestock barn transmits captured images of the livestock to the data processing device 2. Based on the images received from camera C, the data processing device 2 identifies the number of livestock in each of the multiple livestock barns (S1 in FIG. 2).

[0032] The information terminal 1 accepts input of a breeding pattern for each barn from the breeding manager and transmits the accepted breeding pattern for each barn to the data processing device 2. The breeding manager, for example, inputs a combination of the type of feed to be given to livestock and the method of disposing of excrement as the breeding pattern. The data processing device 2 identifies the received breeding pattern for each barn (S2 in FIG. 2). The data processing device 2 identifies the type of feed corresponding to the breeding pattern identified in S2 (S3 in FIG. 2).

[0033] The data processing device 2 refers to a table in which the type of feed is associated with a first feed coefficient, which is a coefficient indicating the nitrogen content in livestock feces and is determined by the type of feed given to the livestock, and identifies a first feed coefficient (feces coefficient) corresponding to the type of feed identified in S3 (S4 in FIG. 2).The data processing device 2 also refers to a table in which the type of feed is associated with a second feed coefficient, which is a coefficient indicating the nitrogen content in livestock urine and is determined by the type of feed given to the livestock, and identifies a second feed coefficient (urine coefficient) corresponding to the type of feed identified in S3 (S5 in FIG. 2).

[0034] The data processing device 2 identifies the feces and urine disposal methods corresponding to the rearing pattern identified in S2 (S6 in FIG. 2). The data processing device 2 refers to a table in which feces disposal methods are associated with first emission factors, which are the nitrogen emission factors for livestock feces, and identifies a first emission factor (feces coefficient) corresponding to the feces disposal method identified in S6 (S7 in FIG. 2). The data processing device 2 also refers to a table in which urine disposal methods are associated with second emission factors, which are the nitrogen emission factors for livestock urine, and identifies a second emission factor (urine coefficient) corresponding to the urine disposal method identified in S6 (S8 in FIG. 2).

[0035] The data processing device 2 identifies the amount of N2O emissions attributable to feces for each livestock pen by substituting the number of livestock for each pen identified in S1, the first feed coefficient (feces coefficient) identified in S4, and the first emission coefficient (feces coefficient) identified in S7 into a predetermined calculation formula (S9 in Figure 2).The data processing device 2 identifies the amount of CO2 emissions attributable to feces for each livestock pen by multiplying the calculated amount of N2O emissions attributable to feces for each livestock pen by a predetermined coefficient (S10 in Figure 2).

[0036] The data processing device 2 also identifies the amount of urine-attributable N2O emissions for each livestock pen by substituting the number of livestock for each pen identified in S1, the second feed coefficient (urine coefficient) identified in S5, and the second emission coefficient (urine coefficient) identified in S8 into a predetermined calculation formula (S11 in Figure 2).The data processing device 2 identifies the amount of urine-attributable CO2 emissions for each livestock pen by multiplying the calculated amount of urine-attributable N2O emissions for each livestock pen by a predetermined coefficient (S12 in Figure 2).

[0037] The data processing device 2 then sums up the feces-derived CO2 emissions for each barn identified in S10 and the urine-derived CO2 emissions for each barn identified in S12 to identify the CO2 emissions for the entire barn (S13 in FIG. 2). The data processing device 2 may also multiply the N2O emissions for the entire barn, which is the sum of the feces-derived N2O emissions for each barn identified in S9 and the feces-derived N2O emissions for each barn identified in S11, by a predetermined coefficient to identify the CO2 emissions for the entire barn.

[0038] The data processing device 2 determines the amount of CO2 reduction for the entire farm by subtracting the amount of CO2 emissions for the entire farm determined in S13 from the amount of CO2 emissions corresponding to the CO2 emission allowance predetermined by the government, etc. (S14 in FIG. 2). The data processing device 2 transmits to the information terminal 1 the amount of CO2 emissions for the entire farm determined in S13 and the amount of CO2 reduction for the entire farm determined in S14.

[0039] For example, if the livestock manager confirms that the CO2 reduction amount received by the information terminal 1 is greater than the CO2 reduction amount calculated using conventional methods, he or she may decide to sell the credits corresponding to the received CO2 reduction amount to a company, etc. This makes it easier for livestock farmers to make a profit from selling the credits, improving their business situation and motivating them to further reduce CO2 emissions.

[0040] Below, we will explain in detail the methods for identifying fecal- and urine-induced N2O emissions (emissions identification by feces and urine), and the methods for identifying N2O emissions by rearing pattern (emissions identification by rearing pattern).

[0041] <Specifying the amount of waste produced> [Configuration of Information Terminal 1] 3 is a diagram showing an example of the configuration of the information terminal 1. The information terminal 1 includes a terminal communication unit 11, an operation unit 12, a display unit 13, a storage unit 14, and a control unit 15. The control unit 15 includes an operation reception unit 151 and a display processing unit 152. The configuration of the information terminal 1 is the same when specifying discharge amounts by breeding pattern, which will be described later.

[0042] The terminal communication unit 11 is a communication interface for communicating with the data processing device 2 via a communication network such as the Internet. The terminal communication unit 11 transmits information indicating a rearing pattern, which is a combination of the type of feed to be given to livestock and the method of treating excrement, input from the operation reception unit 151 to the data processing device 2. The terminal communication unit 11 inputs information indicating the amount of CO2 emissions from the entire farm, received from the data processing device 2, to the display processing unit 152.

[0043] The operation unit 12 is a device that receives operations from the user U, and is, for example, a keyboard, a mouse, or a touch panel. The display unit 13 is configured, for example, with a liquid crystal display or an organic EL (Electro-Luminescence) display. The display unit 13 displays various information according to the control of the display processing unit 152. The display unit 13 displays information indicating the amount of CO2 emissions.

[0044] The storage unit 14 is a storage medium including a ROM (Read Only Memory), a RAM (Random Access Memory), etc. The storage unit 14 stores a program executed by the control unit 15. For example, the storage unit 14 stores a program that causes the control unit 15 to function as an operation receiving unit 151 and a display processing unit 152.

[0045] The control unit 15 is, for example, a CPU (Central Processing Unit). The control unit 15 executes a program stored in the storage unit 14, thereby functioning as an operation reception unit 151 and a display processing unit 152.

[0046] The operation reception unit 151 receives input of a breeding pattern from the breeding manager, and inputs information indicating the received breeding pattern to the terminal communication unit 11.

[0047] The display processing unit 152 displays various types of information on the display unit 13. For example, the display processing unit 152 displays information indicating the amount of CO2 emissions from the entire breeding facility, which information is transmitted from the data processing device 2 and input from the terminal communication unit 11, on the display unit 13.

[0048] [Configuration of data processing device 2] 4 is a diagram showing an example of the configuration of a data processing device 2 for specifying the discharge amount by feces and urine. The data processing device 2 includes a device communication unit 21, a storage unit 22, and a control unit 23. The control unit 23 includes a reception unit 231, a head count determination unit 232, a discharge amount determination unit 235, and an output unit 236.

[0049] The device communication unit 21 is a communication interface for communicating with the information terminal 1 via a communication network such as the Internet. The device communication unit 21 inputs images of livestock received from a camera C installed in the livestock barn to the head count identification unit 232. The device communication unit 21 inputs information indicating the rearing pattern received from the information terminal 1 to the reception unit 231. The device communication unit 21 transmits information indicating the CO2 emissions of the entire farm input from the output unit 236 to the information terminal 1.

[0050] The memory unit 22 is a storage medium including a ROM, a RAM, etc. The memory unit 22 stores a program executed by the control unit 23. For example, the memory unit 22 stores an information processing program that causes the control unit 23 to function as a reception unit 231, a head count determination unit 232, an emission amount determination unit 235, and an output unit 236. The memory unit 22 stores a feed table by weight, a feed coefficient table, an emission coefficient table, and a weight table by barn.

[0051] FIG. 5 is a diagram showing an example of a weight-based feed table. In the weight-based feed table, the weight of livestock is associated with the type of feed given to the livestock. In this way, the memory unit 22 stores the type of feed in association with a plurality of weight ranges of livestock. Weight ranges, such as "30 kg or more and less than 50 kg" or "50 kg or more and less than 70 kg," are defined to classify livestock according to their growth rate, and the type of feed given to livestock differs depending on the weight range. Different types of feed have different crude protein (CP) content, which indicates the total amount of protein contained in the feed. In the weight-based feed table, the type of feed may be associated with the crude protein content.

[0052] Fig. 6 is a diagram showing an example of a feed coefficient table. In the feed coefficient table, the type of feed is associated with a first feed coefficient (feces coefficient) and a second feed coefficient (urine coefficient). The first feed coefficient (feces coefficient) is a coefficient that indicates the nitrogen content contained in the feces excreted by livestock within a unit period and is determined by the type of feed given to the livestock. The second feed coefficient (urine coefficient) is a coefficient that indicates the nitrogen content contained in the urine excreted by livestock within a unit period and is determined by the type of feed given to the livestock.

[0053] FIG. 7 is a diagram showing an example of an emission coefficient table. In the emission coefficient table, excrement treatment methods are associated with a first emission coefficient (feces coefficient) and a second emission coefficient (urine coefficient). Examples of excrement treatment methods include sun drying, thermal drying, carbonization, open-type forced fermentation, closed-type forced fermentation, heaping fermentation, incineration, purification, storage, methane fermentation, industrial waste treatment, and grazing. The first emission coefficient (feces coefficient) is the nitrogen emission coefficient for feces excreted by livestock. The second emission coefficient (urine coefficient) is the nitrogen emission coefficient for urine excreted by livestock. In this way, the memory unit 22 stores a plurality of first emission coefficients in association with a plurality of excrement treatment methods, and stores a plurality of second emission coefficients in association with a plurality of urine treatment methods.

[0054] The amount of CO2 emissions can be calculated by substituting the above-mentioned feed coefficient and emission coefficient into the following formula 1. PJ,pig " corresponds to the first feed coefficient and the second feed coefficient described above. Also, "EF N2O,n +EF N2O,i,n " corresponds to the first and second emission factors mentioned above.

[0055]

number

[0056] In the above formula 1, "EF N2O,i,n The value of " is calculated using the following formula 2.

number

[0057] In the above formula 1, "MA PJ,pig The value of " is calculated using the following formula 3.

number

[0058] In the above formula 3, "R n The value of " is calculated using the following formula 4.

number

[0059] In this embodiment, the "MA BL,pig " value is calculated as 14.2 x 10 -6 When calculating the CO2 emissions due to urine, it is 24.8 x 10 -6 As a result, the "MA" in Equation 1, which is used to calculate CO2 emissions caused by feces, can be calculated. PJ,pig The first feed coefficient is 14.2 x 10 -6 The value is calculated by substituting into Equation 3. In addition, the value of "MA" in Equation 1, which is used to calculate the CO2 emissions due to urine, PJ,pig The second feed coefficient is 24.8 x 10 -6 The value is calculated by substituting into Equation 3.

[0060] In addition, "CR" in Equation 4 PJ,CP The CP (crude protein) content of improved feed varies depending on the type of feed. PJ,CP " in Formula 1, which is calculated based on PJ,pig The first feed coefficient and the second feed coefficient, which are "," have different values ​​for each type of feed, as shown in FIG.

[0061] Also, "EF" in Equation 1 N2O,n ", "Frac" in Equation 2 Gasm1,n " and "Frac" in Equation 2 Gasm2,n At least one value of "EF" differs depending on the excrement treatment method. N2O,n ", "Frac Gasm1,n " and "Frac Gasm2,n " is calculated based on the "EF N2O,n +EF N2O,i,nThe first and second emission coefficients, "," have different values ​​depending on the excrement treatment method, as shown in FIG.

[0062] FIG. 8 is a diagram showing an example of a livestock-by-pen weight table. In the livestock-by-pen weight table, the livestock pen number, the weight range of the livestock, the number of livestock, and the raising period of the livestock are associated with each other. The "weight range of the livestock" is the weight range to which the weight of the livestock belongs. In this way, the memory unit 22 stores the weight range of the livestock raised in the livestock pen, in association with each of the multiple livestock pens. The memory unit 22 also stores the number of livestock raised in the livestock pen, in association with each of the multiple livestock pens.

[0063] The control unit 23 is, for example, a CPU. The control unit 23 executes an information processing program stored in the storage unit 22 to function as a reception unit 231, a head count determination unit 232, a discharge amount determination unit 235, and an output unit 236.

[0064] The reception unit 231 receives input of the type of feed to be given to livestock. The reception unit 231 also receives input of the feces disposal method and urine disposal method in the breeding farm. The reception unit 231 receives, for example, the type of feed, the feces disposal method, and the urine disposal method specified by the breeding pattern input from the device communication unit 21.

[0065] The head count determination unit 232 determines the number of livestock raised in the farm. The head count determination unit 232 determines the number of livestock, for example, by counting the number of livestock included in images of the livestock captured by a camera C installed in the livestock barn, which are input from the device communication unit 21. The head count determination unit 232 may determine the number of livestock based on the estimated number output by a learning model that has been machine-learned using images of the livestock and the correct number of livestock as training data. The head count determination unit 232 may determine the number of livestock based on either video or still images of the livestock.

[0066] The head count determination unit 232 may determine the number of livestock by receiving an input of the number of livestock from the keepers via the reception unit 231. The head count determination unit 232 determines the number of livestock based on, for example, the number of livestock registered at a predetermined point in time (for example, the time of initial registration) and at least one of the number of dead livestock and the number of moved livestock input at a point in time after the predetermined point in time.

[0067] The emission amount specifying unit 235 specifies a first emission amount, which is the amount of N2O emission resulting from the excrement of multiple livestock, by multiplying the number of livestock specified by the head count specifying unit 232 by a first feed coefficient. The emission amount specifying unit 235 specifies a first unit emission amount, which is the amount of N2O emission per unit period (e.g., one day), by, for example, multiplying the number of livestock specified by the head count specifying unit 232 by a first feed coefficient in a feed coefficient table (Fig. 6) corresponding to the type of feed specified by the rearing pattern accepted by the accepting unit 231. The emission amount specifying unit 235 specifies the first emission amount for the period by multiplying the first unit emission amount by the first target number of days, which is the number of days included in the period for which the first emission amount is to be specified. The first feed coefficient used here is, for example, 14.2 × 10 -6 This is a value calculated based on the above.

[0068] The emission amount specifying unit 235 may specify the first emission amount by multiplying the number of livestock identified by the number-of-head specifying unit 232 by a first emission coefficient stored in the memory unit 22 in association with the feces treatment method accepted by the accepting unit 231. The emission amount specifying unit 235 specifies the first unit emission amount, for example, by multiplying the number of livestock identified by the number-of-head specifying unit 232 by the first emission coefficient in the emission coefficient table ( FIG. 7 ) that corresponds to the feces treatment method identified by the rearing pattern accepted by the accepting unit 231. The emission amount specifying unit 235 specifies the first emission amount by multiplying the first unit emission amount by the first target number of days.

[0069] As an example, the emission amount determination unit 235 may determine the first emission amount per year by multiplying the determined number of livestock, the determined first feed coefficient, the determined first emission coefficient, the number of days the livestock were fed with feed corresponding to the first feed coefficient, and a conversion coefficient (for example, 44 / 28, which is a coefficient for converting the weight of nitrogen contained in N2O into the weight of N2O).

[0070] The emission amount specifying unit 235 specifies the second emission amount, which is the amount of N2O emission resulting from the urine of multiple livestock, by multiplying the number of livestock specified by the head count specifying unit 232 by the second feed coefficient. The emission amount specifying unit 235 specifies the second unit emission amount, which is the amount of N2O emission per unit period (e.g., one day), by, for example, multiplying the number of livestock specified by the head count specifying unit 232 by the second feed coefficient in the feed coefficient table (Fig. 6) corresponding to the type of feed specified by the rearing pattern accepted by the accepting unit 231. The emission amount specifying unit 235 specifies the second emission amount for the period by multiplying the second unit emission amount by the second target number of days, which is the number of days included in the period for which the second emission amount is to be specified. The second feed coefficient used here is, for example, 24.8 × 10 -6 This is a value calculated based on the above.

[0071] The emission amount specifying unit 235 may specify the second emission amount by multiplying the number of livestock identified by the number-of-heads specifying unit 232 by the second emission coefficient stored in the memory unit 22 in association with the urine treatment method accepted by the accepting unit 231. The emission amount specifying unit 235 specifies the second unit emission amount, for example, by multiplying the number of livestock identified by the number-of-heads specifying unit 232 by the second emission coefficient in the emission coefficient table ( FIG. 7 ) corresponding to the urine treatment method identified by the rearing pattern accepted by the accepting unit 231. The emission amount specifying unit 235 specifies the second emission amount by multiplying the second unit emission amount by the second target number of days.

[0072] As an example, the emission amount determination unit 235 may determine the second emission amount per year by multiplying the identified number of livestock, the identified second feed coefficient, the identified second emission coefficient, the number of days the livestock were fed with feed corresponding to the second feed coefficient, and a conversion coefficient.

[0073] The emission amount determining unit 235 determines the total CO2 emission amount, which is the CO2 emission amount attributable to the manure and urine of the multiple livestock, based on the first emission amount and the second emission amount. The emission amount determining unit 235 determines the total CO2 emission amount, for example, by summing the CO2 emission amount based on the first emission amount, which is the N2O emission amount attributable to manure, and the CO2 emission amount based on the second emission amount, which is the N2O emission amount attributable to urine. Specifically, the emission amount determining unit 235 determines the total CO2 emission amount per year, as shown in Formula 1, by summing the CO2 emission amount per year calculated by multiplying the first emission amount per year by the global warming potential of N2O (e.g., 295) and the CO2 emission amount per year calculated by multiplying the second emission amount per year by the global warming potential of N2O.

[0074] The emission amount determining unit 235 may determine the total CO2 emission amount based on the total emission amount obtained by adding up the first emission amount, which is the N2O emission amount due to feces, and the second emission amount, which is the N2O emission amount due to urine. The emission amount determining unit 235 determines the total CO2 emission amount due to year, as shown in Equation 1, by multiplying the total emission amount due to year by the global warming potential, for example.

[0075] As explained above, the CO2 emissions based on the N2O emissions calculated using the first feed coefficient and the second feed coefficient have improved accuracy compared to the CO2 emissions based on the N2O emissions calculated using the conventional predetermined feed coefficient that does not distinguish between feces and urine. The predetermined feed coefficient can be, for example, the "MA BL,pig " Substitute 34.2 x 10 -6 Furthermore, the CO2 emissions based on N2O emissions calculated using the first and second emission factors take into account the method of excrement disposal, further improving accuracy.

[0076] In this way, the emission amount specification unit 235 specifies the CO2 emission amount with high accuracy, thereby improving the accuracy of the value of the CO2 reduction amount that is the subject of trading in carbon credits. As a result, it is possible to prevent the conventional situation where the calculated CO2 reduction amount is less than the actual CO2 reduction amount, resulting in losses for farmers.

[0077] Incidentally, to increase the trading value of carbon credits, it is preferable to reduce CO2 emissions. This is because, as described above, the CO2 reduction amount, which corresponds to the amount of CO2 emissions falling below the emission allowance, becomes a tradable credit. Therefore, if the CO2 emissions based on the N2O emissions calculated using the first feed coefficient and the second feed coefficient are equal to or greater than the CO2 emissions based on the N2O emissions calculated using a predetermined feed coefficient used when feces and urine are not distinguished, the emission amount determination unit 235 may determine the total CO2 emissions by multiplying the number of cattle determined by the head count determination unit 232 by the predetermined feed coefficient. By operating the emission amount determination unit 235 in this manner, farmers can increase the trading value of carbon credits.

[0078] The output unit 236 outputs the identified total CO2 emissions. For example, the output unit 236 transmits the identified total CO2 emissions to the information terminal 1 via the device communication unit 21. The output unit 236 may output the CO2 reduction amount, which is the value obtained by subtracting the total CO2 emissions from the CO2 emission allowance, along with the total CO2 emissions. This allows farmers to efficiently grasp the CO2 reduction amount, which is the subject of trading in carbon credits, and therefore makes it possible to efficiently proceed with carbon credit trading.

[0079] [Specifying emissions by weight range] The type of feed that livestock eat varies depending on the livestock's weight range. That is, different livestock weight ranges require different feed coefficients. For this reason, the emission amount determination unit 235 may determine a first emission amount, which is the amount of N2O emission due to feces, and a second emission amount, which is the amount of N2O emission due to urine, for each of a plurality of weight ranges, as described below.

[0080] The head count identification unit 232 identifies the number of livestock belonging to each of the multiple weight ranges. For example, the head count identification unit 232 identifies the number of livestock belonging to each of the multiple weight ranges by adding up the numbers of livestock stored in the memory unit 22 in association with one or more livestock pens corresponding to each of the multiple weight ranges.

[0081] The head count identifying unit 232 may identify the number of livestock belonging to each of a plurality of weight ranges by adding up the numbers of livestock corresponding to the pens associated with the same weight range with reference to the pen-by-pen weight table (Fig. 8). In the example shown in Fig. 8, the pens associated with the weight range of "30 kg or more and less than 50 kg" are three pens, namely pen 1, pen 8, and pen 9, so the head count identifying unit 232 adds up the numbers of livestock in these three pens and identifies the number of livestock belonging to "30 kg or more and less than 50 kg" as 500.

[0082] The head count identification unit 232 may identify the number of livestock belonging to each of a plurality of weight ranges based on the information received by the reception unit 231. The reception unit 231, for example, receives input of the weight range to which the livestock raised in the livestock barn belongs and the number of livestock raised in the barn, associated with each of a plurality of barns. The head count identification unit 232 identifies the number of livestock belonging to each of the plurality of weight ranges, for example, by adding up the numbers of livestock input in association with one or more barns corresponding to each of the plurality of weight ranges.

[0083] The head number specifying unit 232 may specify the number of livestock belonging to each of a plurality of weight ranges based on images of the livestock captured by camera C. For example, the head number specifying unit 232 specifies the area of ​​a region corresponding to each individual livestock in an image of the livestock captured from above. Then, the head number specifying unit 232 refers to a weight estimation table in which area and weight are associated, and estimates that the weight corresponding to the area of ​​the specified region is the weight of that individual livestock. The head number specifying unit 232 classifies the individual livestock into a plurality of weight ranges based on the weight of each individual livestock, thereby specifying the number of livestock belonging to each of a plurality of weight ranges. In the weight estimation table, area ranges are associated with weight ranges, and the weight range associated with the area range to which the area of ​​the region corresponding to an individual livestock belongs may be considered to be the weight range to which that individual livestock belongs.

[0084] The discharge amount specifying unit 235 specifies the first discharge amount due to feces by multiplying, for each of a plurality of weight ranges, the number of head belonging to the weight range specified by the head number specifying unit 232 by a first feed coefficient corresponding to the type of feed associated with the weight range. The discharge amount specifying unit 235 specifies the type of feed associated with the weight range to which the livestock belongs, for example, by referring to a feed-by-weight table (see FIG. 5). Next, the discharge amount specifying unit 235 specifies the first feed coefficient associated with the specified type of feed, for example, by referring to a feed coefficient table (see FIG. 6), and specifies the first discharge amount based on the specified first feed coefficient.

[0085] The discharge amount specifying unit 235 specifies the second discharge amount due to urine by multiplying, for each of a plurality of weight ranges, the number of heads belonging to the weight range specified by the head number specifying unit 232 by a second feed coefficient corresponding to the type of feed associated with the weight range. The discharge amount specifying unit 235 specifies the type of feed associated with the weight range to which the livestock belongs, for example, by referring to a feed-by-weight table (see FIG. 5). Next, the discharge amount specifying unit 235 specifies the second feed coefficient associated with the specified type of feed, for example, by referring to a feed coefficient table (see FIG. 6), and specifies the second discharge amount based on the specified second feed coefficient.

[0086] In this way, the first emission amount and the second emission amount determined by the emission amount determination unit 235 for each of the plurality of weight ranges are values ​​that take into consideration the type of feed given to the livestock. As a result, the emission amount determination unit 235 can determine the CO2 emission amount with high accuracy. In the case of livestock such as pigs, whose weight range is roughly determined according to their age in days, age in days may be used instead of weight in the process of determining emission amounts by weight range described above.

[0087] Incidentally, when the weight range of livestock changes, the type of feed given to the livestock also changes. For example, in a certain livestock pen, when the weight range of livestock changes from "30 kg or more and less than 50 kg" to "50 kg or more and less than 70 kg," the type of feed changes from "Feed Type A" to "Feed Type B." Therefore, when the weight range for each livestock pen is updated, the discharge amount determining unit 235 may update the first discharge amount and the second discharge amount, which are affected by the type of feed. For example, the discharge amount determining unit 235 updates the first discharge amount and the second discharge amount in response to the receiving unit 231 receiving an update to the weight range of the livestock. By operating in this manner, the discharge amount determining unit 235 can accurately determine the first discharge amount and the second discharge amount even when the weight range for each livestock pen is updated.

[0088] The weight range to which livestock belong may change during the year. For example, the weight range to which a certain livestock belongs may change from a first range of "30 kg or more and less than 50 kg" to a second range of "50 kg or more and less than 70 kg." When the weight range to which livestock belong changes, the type of feed given to the livestock also changes, as described above (see FIG. 5). When the type of feed changes, the first feed coefficient for calculating the first discharge amount and the second feed coefficient for calculating the second discharge amount also change (see FIG. 6). Therefore, the discharge amount specifying unit 235 may specify the first discharge amount and the second discharge amount for each of multiple periods in which the weight range of the livestock does not change. In the above example, the discharge amount specifying unit 235 specifies the first discharge amount and the second discharge amount for each of the periods in which the weight range of the livestock was in the first range and the second range.

[0089] The emission amount determining unit 235 may then determine the total CO2 emission amount based on a plurality of first emission amounts and a plurality of second emission amounts corresponding to a plurality of periods in a year in which the weight range of the livestock does not change. In the above example, the emission amount determining unit 235 determines the total CO2 emission amount based on the first emission amount and the second emission amount for a period in which the weight range of the livestock was in the first range, and the first emission amount and the second emission amount for a period in which the weight range of the livestock was in the second range. By operating in this manner, the emission amount determining unit 235 can accurately determine the total CO2 emission amount even if the weight range of the livestock changes during the year.

[0090] [Effects of Data Processing Device 2] As described above, the emission amount determining unit 235 determines the first emission amount, which is the N2O emission amount attributable to livestock feces, by multiplying the number of livestock by the first feed coefficient, and determines the second emission amount, which is the N2O emission amount attributable to livestock urine, by multiplying the number of livestock by the second feed coefficient. The emission amount determining unit 235 then determines the total CO2 emission amount based on the total emission amount obtained by adding together the first emission amount and the second emission amount. The total CO2 emission amount determined by the emission amount determining unit 235 in this way, distinguishing between feces and urine, is more accurate than the total CO2 emission amount determined by conventional methods, and therefore the accuracy of the CO2 reduction amount obtained by subtracting the total CO2 emission amount from the CO2 emission allowance is also improved.

[0091] Furthermore, the emission amount specifying unit 235 may specify the first emission amount by multiplying the number of livestock by a first emission coefficient corresponding to the feces treatment method, and may specify the second emission amount by multiplying the number of livestock by a second emission coefficient corresponding to the urine treatment method. In this way, the emission amount specifying unit 235 specifies the total CO2 emission amount by distinguishing between different feces and urine treatment methods, thereby further improving the accuracy of the CO2 reduction amount.

[0092] In this way, because the emission amount specification unit 235 can specify the CO2 reduction amount with high accuracy, farmers can trade carbon credits with CO2 reduction amounts that are close to the actual CO2 reduction amounts. This makes it less likely that farmers will incur losses by trading carbon credits with CO2 reduction amounts that are smaller than the actual CO2 reduction amounts, as was the case in the past. As a result, farmers will be motivated to further reduce their CO2 emissions.

[0093] <Identifying emissions by breeding pattern> [Configuration of data processing device 2] 9 is a diagram showing an example of the configuration of a data processing device 2 related to specifying discharge amounts by rearing pattern. The data processing device 2 includes a device communication unit 21, a storage unit 22, and a control unit 23. The control unit 23 includes a number of animals specifying unit 232, a pattern specifying unit 233, a coefficient specifying unit 234, a discharge amount specifying unit 235, and an output unit 236. The processing executed by the device communication unit 21 is the same as the processing described in specifying discharge amounts by excrement and urine, and therefore description thereof will be omitted.

[0094] The storage unit 22 is a storage medium including a ROM, a RAM, etc. The storage unit 22 stores a program executed by the control unit 23. For example, the storage unit 22 stores an information processing program that causes the control unit 23 to function as a head count specifying unit 232, a pattern specifying unit 233, a coefficient specifying unit 234, an emission amount specifying unit 235, and an output unit 236. The storage unit 22 stores a breeding pattern table and a pattern-specific coefficient table.

[0095] Fig. 10 is a diagram showing an example of a rearing pattern table. Rearing patterns, which are combinations of the type of feed given to livestock and the method of disposing of excrement, may differ for each rearing period. For this reason, the rearing pattern table associates the rearing period, rearing pattern, type of feed, method of disposing of excrement, and method of disposing of urine. In this way, the memory unit 22 stores rearing patterns in association with each of a plurality of rearing periods.

[0096] Fig. 11 is a diagram showing an example of a pattern-specific coefficient table. In the pattern-specific coefficient table, rearing patterns are associated with pattern-specific coefficients. The pattern-specific coefficients are coefficients for calculating N2O emissions resulting from livestock manure. In this way, the storage unit 22 stores the pattern-specific coefficients in association with each of a plurality of rearing patterns.

[0097] The memory unit 22 stores, as pattern-specific coefficients, coefficients corresponding to the type of feed and coefficients corresponding to the excrement treatment method. The coefficient corresponding to the type of feed is, for example, at least one of a first feed coefficient indicating the nitrogen content attributable to livestock feces and a second feed coefficient indicating the nitrogen content attributable to livestock urine. The coefficient corresponding to the excrement treatment method is, for example, at least one of a first emission coefficient which is the nitrogen excretion coefficient of livestock feces and a second emission coefficient which is the nitrogen excretion coefficient of livestock urine. The pattern-specific coefficients shown in FIG. 11 include a first feed coefficient and a first emission coefficient corresponding to feces, and a second feed coefficient and a second emission coefficient corresponding to urine, but the pattern-specific coefficients may also be feed coefficients and emission coefficients when feces and urine are not distinguished.

[0098] The control unit 23 is, for example, a CPU. The control unit 23 executes an information processing program stored in the storage unit 22, thereby functioning as a head count specifying unit 232, a pattern specifying unit 233, a coefficient specifying unit 234, a discharge amount specifying unit 235, and an output unit 236.

[0099] The head count identification unit 232 identifies the number of livestock raised in each of the multiple livestock pens provided in the breeding farm. The head count identification unit 232 identifies the number of livestock raised in each of the multiple livestock pens, for example, by identifying the number of livestock included in images of livestock captured by a camera C provided in each of the multiple livestock pens. Hereinafter, the number identified in this way will be referred to as the "number of livestock in the image."

[0100] The head count determination unit 232 may determine the number of livestock raised in each of the multiple livestock pens based on information received from the animal husbandry manager. The head count determination unit 232 determines the number of livestock raised in each of the multiple livestock pens, for example, by determining the number of livestock based on the number of livestock registered at a predetermined point in time (initial number) and at least one of the number of deaths, births, and movements of livestock input at a point in time after the predetermined point in time. Hereinafter, the number determined in this way is referred to as the "calculated number of livestock." The predetermined point in time is, for example, the point in time when the farmer enters into carbon credit trading.

[0101] The number of livestock transferred includes the number of livestock that have moved into the livestock barn that is the subject of livestock number identification (number of livestock entering the barn), and the number of livestock that have moved out of the livestock barn that is the subject of livestock number identification (number of livestock leaving the barn). The number of deaths and the number of livestock leaving the barn are elements that are subtracted from the initial number. On the other hand, the number of births and the number of livestock entering the barn are elements that are added to the initial number. The number of deaths, births, and transfers of livestock may be values ​​input at the end of each rearing period. This allows the head count identification unit 232 to identify the number of livestock in each barn at the end of each rearing period.

[0102] Incidentally, if the number of livestock identified based on an image of the livestock differs from the calculated number of livestock identified by calculation based on information received from the livestock manager, one or both of the figures may be incorrect. Therefore, the output unit 236 may issue an alert if the difference between the number of livestock in the image and the calculated number is equal to or greater than a threshold. The threshold is, for example, a value obtained by multiplying the total number of livestock in the barn by a predetermined percentage (e.g., 1%).

[0103] FIG. 12 is a diagram showing an example of a head count determination result table. In the head count determination result table, the barn number, the number of heads in the image, the calculated number of heads, the rearing period for which the number of livestock was identified, and the determination result are associated with each other. A barn with a determination result of "◯" is a barn where the number of heads in the image matches the calculated number of heads. A barn with a determination result of "△" is a barn where the number of heads in the image and the calculated number do not match, but the difference between the two is less than the threshold. A barn with a determination result of "X" is a barn where the number of heads in the image and the calculated number do not match, but the difference between the two is greater than or equal to the threshold (i.e., is subject to an alert notification). The output unit 236 may transmit the head count determination result table to the information terminal 1 used by the livestock manager.

[0104] By issuing an alert in this way from the output unit 236, the livestock manager can become aware of the possibility that the number of livestock in each barn identified by the head count identification unit 232 may be incorrect. As a result, for barns that have received an alert notification with a judgment result of "◯," the livestock manager can take action such as visually counting the number of livestock, thereby preventing the number of livestock from being identified incorrectly. Note that the livestock manager may use either the number of livestock in the image or the calculated number as the number of livestock in barns with a judgment result of "△," or may use the average of both.

[0105] The pattern identification unit 233 identifies a breeding pattern for each of the multiple livestock pens. For example, the pattern identification unit 233 receives input from a breeding manager of a combination of the type of feed given to the livestock raised in the livestock pen and the method of treating excrement for the livestock, for each of the multiple livestock pens. Then, the pattern identification unit 233 refers to a breeding pattern table ( FIG. 10 ), for example, to identify the breeding pattern associated with the received combination of the type of feed and the method of treating excrement.

[0106] As described above, the rearing pattern may differ for each rearing period. Therefore, the pattern identification unit 233 may identify, for each of a plurality of livestock pens, a rearing pattern corresponding to the rearing period to which the livestock raised in that pen belong. The pattern identification unit 233, for example, refers to a pen-specific weight table (FIG. 8) to identify the rearing period associated with each of the plurality of livestock pens. Then, the pattern identification unit 233, for example, refers to a rearing pattern table (FIG. 10) to identify, for each of the plurality of livestock pens, a rearing pattern corresponding to the identified rearing period. By operating in this manner, the pattern identification unit 233 can identify the rearing pattern for each of the plurality of livestock pens without the livestock manager having to input a combination of feed type and excrement treatment method. As a result, the workload of the livestock manager associated with carbon credit trading is reduced.

[0107] The coefficient specifying unit 234 specifies a pattern-specific coefficient in association with the breeding pattern. The coefficient specifying unit 234 specifies a pattern-specific coefficient corresponding to the breeding pattern specified by the pattern specifying unit 233, for example, by referring to a pattern-specific coefficient table (FIG. 11).

[0108] The coefficient specifying unit 234 may specify a first pattern-specific coefficient for calculating the amount of N2O emission attributable to livestock feces and a second pattern-specific coefficient for calculating the amount of N2O emission attributable to livestock urine, in association with the rearing pattern. The coefficient specifying unit 234, for example, refers to a pattern-specific coefficient table (FIG. 11) and specifies a first feed coefficient and a first emission coefficient corresponding to the rearing pattern specified by the pattern specifying unit 233 as the first pattern-specific coefficient. Furthermore, the coefficient specifying unit 234, for example, refers to a pattern-specific coefficient table (FIG. 11) and specifies a second feed coefficient and a second emission coefficient corresponding to the rearing pattern specified by the pattern specifying unit 233 as the second pattern-specific coefficient. As a result of the coefficient specifying unit 234 operating in this manner, the N2O emission amount specified by the emission specifying unit 235 becomes a value for each rearing pattern and each manure, as will be described in detail later.

[0109] The emission amount specifying unit 235 specifies the amount of N2O emissions by pen, which is the sum of the amounts of N2O emissions caused by the manure of multiple livestock raised in the pen, in order to specify the total amount of N2O emissions, which is the sum of the amounts of N2O emissions caused by multiple livestock raised in the pen. The emission amount specifying unit 235 specifies the amount of N2O emissions by pen, for each of the multiple pens, by multiplying the number of heads specified by the head-number specifying unit 232 by a pattern-specific coefficient corresponding to the rearing pattern corresponding to the pen. The emission amount specifying unit 235 may specify the amount of N2O emissions by pen for each of the multiple pens by multiplying the number of heads specified by the head-number specifying unit 232 by a pattern-specific coefficient corresponding to the rearing pattern corresponding to the pen by the number of target days, which is the number of days included in the period for which the emission amount by pen is specified.

[0110] Specifically, the emission amount specifying unit 235 specifies the emission amount by livestock pen for each of the multiple livestock pens by multiplying the number of heads specified by the head count specifying unit 232 by a pattern-specific coefficient corresponding to the rearing pattern specified by the pattern specifying unit 233. More specifically, the emission amount specifying unit 235 specifies the annual emission amount by livestock pen for each of the multiple livestock pens by multiplying the number of heads specified by the head count specifying unit 232 by a pattern-specific coefficient corresponding to the rearing pattern specified by the coefficient specifying unit 234 by referring to the pattern-specific coefficient table and the number of days on which the livestock were fed with feed corresponding to the pattern-specific coefficient.

[0111] By using the pen-specific emissions identified by the emission identification unit 235 as values ​​for each type of feces and urine, the accuracy of the total emissions identified based on the pen-specific emissions is improved. Therefore, the emission identification unit 235 may identify a first pen-specific emission amount, which is the total amount of N2O emissions resulting from the feces of multiple livestock raised in the pen, by multiplying, for each of multiple pens, the number of heads identified by the head-number identification unit 232 by a first pattern-specific coefficient corresponding to the rearing pattern corresponding to the pen. As described above, the first pattern-specific coefficient is, for example, the first feed coefficient and the first emission coefficient.

[0112] Furthermore, the emission amount specifying unit 235 may specify, for each of the multiple livestock pens, a second enclosure-specific emission amount, which is the total amount of N2O emissions resulting from the urine of multiple livestock raised in the pen, by multiplying the number of heads specified by the head-number specifying unit 232 by a second pattern-specific coefficient corresponding to the rearing pattern corresponding to the pen. As described above, the second pattern-specific coefficient is, for example, the second feed coefficient and the second emission coefficient.

[0113] The emission amount specifying unit 235 may specify the emission amount by pen by adding up the emission amount by the first pen and the emission amount by the second pen. For example, the emission amount specifying unit 235 specifies the emission amount by pen per year by adding up the emission amount by the first pen per year and the emission amount by the second pen per year. In this way, the emission amount specifying unit 235 separately specifies the N2O emission amount due to feces and the N2O emission amount due to urine for each rearing pattern corresponding to each of the multiple pens, thereby improving the accuracy of the specified emission amount by pen. As a result, the accuracy of the total emission amount specified based on the emission amount by pen is also improved.

[0114] The emission amount determining unit 235 determines the total CO2 emission amount, which is the sum of CO2 emissions caused by the multiple livestock raised in the farm, based on the multiple emission amounts per livestock house corresponding to the multiple livestock houses. The emission amount determining unit 235 determines the total CO2 emission amount, for example, by adding up the CO2 emission amounts based on the multiple emission amounts per livestock house corresponding to the multiple livestock houses. Specifically, the emission amount determining unit 235 determines the total CO2 emission amount per year shown in Formula 1 by adding up the CO2 emission amounts per year calculated by multiplying each of the multiple annual emission amounts per livestock house corresponding to the multiple livestock houses by the global warming potential of N2O (e.g., 295).

[0115] The emission amount determining unit 235 may determine the total CO2 emission amount based on the total emission amount obtained by adding up multiple individual livestock enclosure emissions corresponding to multiple livestock enclosures. The emission amount determining unit 235 determines the total CO2 emission amount per year shown in Equation 1, for example, by multiplying the total emission amount per year by the global warming potential.

[0116] As explained above, the CO2 emissions based on N2O emissions calculated using pattern-specific coefficients corresponding to the rearing patterns of each livestock barn are more accurate than the CO2 emissions based on N2O emissions calculated using conventional predetermined feed coefficients that do not distinguish between the rearing patterns of each livestock barn. Furthermore, the CO2 emissions calculated by separately specifying N2O emissions due to feces and N2O emissions due to urine are even more accurate.

[0117] In this way, the emission amount specification unit 235 specifies the CO2 emission amount with high accuracy, thereby improving the accuracy of the CO2 reduction amount to be traded in carbon credits. As a result, it is possible to prevent the conventional situation where the calculated CO2 reduction amount is less than the actual CO2 reduction amount, resulting in losses for farmers.

[0118] The output unit 236 outputs the identified total CO2 emission amount. Of the processes executed by the output unit 236, the same processes as those described in identifying the emission amount by feces and urine will not be described again.

[0119] Incidentally, in order to increase the trading value of carbon credits, it is preferable that CO2 emissions be reduced. This is because, as described above, the CO2 reduction amount, which corresponds to the amount of CO2 emissions falling below the emission allowance, becomes a tradable credit. Therefore, the data processing device 2 may output the result of comparing the CO2 emissions determined by a conventional calculation method with the CO2 emissions determined by the calculation method according to this embodiment, to make it easier for farmers to reduce their CO2 emissions. Specifically, the data processing device 2 executes the following process.

[0120] First, the emission amount determination unit 235 determines the fixed CO2 emission amount based on the calculated N2O emission amount by multiplying the number of livestock determined by the number determination unit 232 by a fixed coefficient for calculating the N2O emission amount caused by livestock manure regardless of differences in rearing patterns, for each of the multiple livestock barns.

[0121] Then, the emission amount identifying unit 235 identifies livestock pens where the difference between the fixed CO2 emission amount and the CO2 emission amount based on the emission amount per livestock pen is equal to or greater than a predetermined threshold. For example, the emission amount identifying unit 235 identifies livestock pens where the value obtained by subtracting the CO2 emission amount based on the emission amount per livestock pen from the fixed CO2 emission amount is equal to or greater than a predetermined positive threshold stored in the memory unit 22. The livestock pens identified in this way are livestock pens where the CO2 emission amount has been reduced to a certain extent compared to conventional calculation methods by using a pattern-specific coefficient corresponding to the rearing pattern of each livestock pen.

[0122] The output unit 236 outputs information indicating the identified livestock barn. By operating the emission amount identification unit 235 and the output unit 236 in this manner, the farmer can identify a reduction pattern, which is a rearing pattern of a livestock barn in which CO2 emissions have been reduced compared to conventional calculation methods. This allows the farmer to reduce the CO2 emissions of a livestock barn in which CO2 emissions have not been reduced compared to conventional calculation methods by changing the rearing pattern of the livestock barn in which CO2 emissions have not been reduced compared to conventional calculation methods to a reduction pattern or by bringing it closer to a reduction pattern. As a result, the total CO2 emissions of the entire livestock farm also decreases, allowing the farmer to increase the trading amount of carbon credits.

[0123] [Specifying emissions by rearing period] To determine the amount of N2O emissions from a single livestock farm over a one year period, it is sufficient to multiply the number of livestock reared at the farm by the number of rearing days (365 days) and the pattern-specific coefficient corresponding to the rearing pattern at the farm. However, as explained with reference to Figures 10 and 11, the pattern-specific coefficient may differ for each rearing period, and therefore, unless the number of livestock belonging to each of the multiple rearing periods is specified, it may not be possible to determine the amount of N2O emissions with high accuracy.

[0124] Therefore, the head count specifying unit 232 may specify the number of livestock by period, which is the number of livestock belonging to each of the multiple rearing periods, by apportioning the total number of livestock raised in each of the multiple livestock pens specified by the head count specifying unit 232 according to the length of each of the multiple rearing periods. For example, the head count specifying unit 232 specifies a daily total, which is the total number of livestock on a daily basis for the entire rearing farm, by adding up the daily totals for 365 days.

[0125] Next, the head count specifying unit 232 specifies the average daily head count for the entire farm, for example, by dividing the specified annual cumulative value by 365. Then, the head count specifying unit 232 specifies the head count by period, which is the number of livestock belonging to each of the multiple rearing periods, for example, by dividing the specified average head count proportionally according to the length of each of the multiple rearing periods. Note that the memory unit 22 may store the length of each of the multiple rearing periods in association with each of the multiple farms.

[0126] As a specific example, suppose that the average number of heads at a certain farm is 450, the early fattening period is 30 days, and the late fattening period is 80 days. In this case, the head number specifying unit 232 specifies the number of livestock belonging to the early fattening period as 450 heads × 30 days / (30 days + 80 days) ≒ 122 heads, and specifies the number of livestock belonging to the late fattening period as 450 heads × 80 days / (30 days + 80 days) ≒ 327 heads.

[0127] The emission amount specifying unit 235 then specifies, for each of the multiple rearing periods, the period-specific head count specified by the head count specifying unit 232 by a pattern-specific coefficient corresponding to the rearing pattern specified for the rearing period, thereby specifying the period-specific emission amount, which is the total amount of N2O emissions resulting from the manure of the multiple livestock reared in the livestock barn. In the specific example described above, the head number specifying unit 232 specifies the annual amount of N2O emissions resulting from the manure of livestock in the early fattening period by multiplying the number of heads in the early fattening period (122 heads) by the number of days in a year (365 days) and the pattern-specific coefficient corresponding to rearing pattern 1 specified by the feed type A given to the livestock in the early fattening period. The head number specifying unit 232 also specifies the annual amount of N2O emissions resulting from the manure of livestock in the late fattening period by multiplying the number of heads in the late fattening period (327 heads) by the number of days in a year (365 days) and the pattern-specific coefficient corresponding to rearing pattern 3 specified by the feed type C given to the livestock in the late fattening period.

[0128] By operating the emission amount determination unit 235 in this manner, the data processing device 2 can accurately determine the annual N2O emission amount even when the feed is changed due to a change in the rearing period in the middle of the year, or when participation in carbon credit trading begins in the middle of the year (for example, from the late fattening stage).

[0129] [Effects of Data Processing Device 2] As explained above, the emission amount specifying unit 235 specifies the amount of emission by livestock pen, which is the total amount of N2O emissions resulting from the manure of multiple livestock, for each of multiple livestock pens, by multiplying the number of livestock by a pattern-specific coefficient corresponding to each rearing pattern.The emission amount specifying unit 235 then specifies the amount of CO2 emission based on the total amount of emission obtained by adding up the specified emissions by livestock pen.In this way, the accuracy of the total CO2 emission specified by the emission amount specifying unit 235 by distinguishing the rearing patterns of each livestock pen is improved, and therefore the accuracy of the CO2 reduction amount obtained by subtracting the total CO2 emission from the CO2 emission allowance is also improved.

[0130] Furthermore, the emission amount specifying unit 235 may specify a first amount of N2O emissions by livestock pen, which is N2O emissions caused by the feces of multiple livestock, by multiplying the number of livestock by a first pattern-specific coefficient, and specify a second amount of N2O emissions by livestock pen, which is N2O emissions caused by the urine of multiple livestock, by multiplying the number of livestock by a second pattern-specific coefficient. The emission amount specifying unit 235 may then specify the above-mentioned amount of N2O emissions by livestock pen by adding up the specified first and second emission amounts by livestock pen. Calculating the amount of N2O emissions by distinguishing between feces and urine in this way improves the accuracy of the total CO2 emissions specified by the emission amount specifying unit 235 by distinguishing between feces and urine, thereby further improving the accuracy of the CO2 reduction amount.

[0131] [Confirming the effect by identifying CO2 emissions according to breeding patterns] It was confirmed that the CO2 emissions determined using feed coefficients corresponding to each of the multiple rearing patterns were lower than the CO2 emissions determined using a common feed coefficient across the multiple rearing patterns.

[0132] Figure 13 is a table showing CO2 emissions by rearing pattern. As a comparative example, for each of the 13 rearing patterns, a comparison CO2 emission amount was determined using the first feed coefficient (0.0000142) and second feed coefficient (0.0000248) that were common to all 13 rearing patterns. On the other hand, as an example to confirm the effect of determining CO2 emissions by rearing pattern, a confirmation CO2 emission amount was determined for each of the 13 rearing patterns using the first feed coefficient and second feed coefficient corresponding to each of the 13 rearing patterns.

[0133] Then, for each of the 13 rearing patterns, the CO2 difference was calculated by subtracting the confirmation CO2 emissions from the comparison CO2 emissions. The CO2 difference was a positive value for all 13 rearing patterns. In other words, the confirmation CO2 emissions were smaller than the comparison CO2 emissions for all 13 rearing patterns. This confirms that the CO2 emissions determined using the feed coefficients for each of the multiple rearing patterns are smaller than the CO2 emissions determined using a feed coefficient common to all of the rearing patterns.

[0134] The greater the CO2 reduction amount (CO2 emissions subtracted from CO2 emission allowance), the greater the trading amount in carbon credits. Therefore, specifying CO2 emissions using feed coefficients corresponding to multiple breeding patterns results in a greater CO2 reduction amount than specifying CO2 emissions using a common feed coefficient across multiple breeding patterns, and so it can be said that farmers can increase the trading amount in carbon credits.

[0135] <First Modification> In the above-described embodiment, an example has been described in which the emission amount specifying unit 235 specifies the amount of CO2 emission caused by feces and the amount of CO2 emission caused by urine for each of a plurality of livestock pens. In the first modified example, an example will be described in which the emission amount specifying unit 235 treats a plurality of livestock pens that share a common rearing pattern, which is a combination of feed type and excrement treatment method, as one specified unit, and specifies the amount of CO2 emission caused by feces and the amount of CO2 emission caused by urine for each of the plurality of specified units.

[0136] 14 is a diagram showing an overview of the first modified example. The emission amount specifying unit 235 defines livestock pen 1 and livestock pen 2 of rearing pattern 1 as the first specified unit, and specifies the amount of CO2 emission due to feces for the first specified unit by multiplying the number of heads by the first feed coefficient and the first emission coefficient, and specifies the amount of CO2 emission due to urine by multiplying the number of heads by the second feed coefficient and the second emission coefficient. The emission amount specifying unit 235 also defines livestock pen 3 of rearing pattern 2 as the second specified unit, and similarly specifies the amount of CO2 emission due to feces and the amount of CO2 emission due to urine for the second specified unit.

[0137] Then, the emission amount determination unit 235 determines the total CO2 emission amount for the entire farm by adding up the CO2 emission amount due to feces and CO2 emission amount due to urine determined for the first specified unit and the CO2 emission amount due to feces and CO2 emission amount due to urine determined for the second specified unit.

[0138] The only difference between the above-described embodiment and the first modification is the calculation process for determining the total CO2 emissions. Therefore, the total CO2 emissions determined by the method according to the first modification will be the same as the total CO2 emissions determined by the method according to the above-described embodiment.

[0139] <Second Modification> In the second modified example, an example will be described in which the emission specifying unit 235 specifies the amount of CO2 emission caused by feces and urine for each of a plurality of livestock pens without distinguishing between CO2 emission caused by feces and CO2 emission caused by urine.

[0140] 15 is a diagram showing an overview of Modification 2. The emission amount identification unit 235 identifies the CO2 emissions caused by feces and urine for each of a plurality of livestock pens by, for example, multiplying the number of heads, a coefficient obtained by adding up the first feed coefficient and the second feed coefficient (corresponding to the rearing pattern of each livestock pen), and a coefficient obtained by adding up the first emission coefficient and the second emission coefficient (corresponding to the rearing pattern of each livestock pen).

[0141] The emission amount specifying unit 235 then sums up the CO2 emission amounts attributable to excrement and urine specified for each of the multiple livestock pens to specify the total CO2 emission amount for the entire livestock farm.

[0142] The CO2 emissions determined in variant 2 are values ​​determined by distinguishing between the types of manure and urine but by distinguishing between the rearing patterns of each livestock barn, and therefore have improved accuracy compared to CO2 emissions determined by conventional CO2 emissions determination methods that do not distinguish between the types of manure and urine and do not distinguish between the rearing patterns of each livestock barn.

[0143] The present invention has been described above using embodiments, but the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist of the present invention. For example, all or part of the device can be configured by functionally or physically distributing or integrating any unit. Furthermore, new embodiments resulting from any combination of multiple embodiments are also included in the embodiments of the present invention. The effects of the new embodiments resulting from the combination also have the effects of the original embodiments. [Explanation of symbols]

[0144] 1. Information terminal 11. Terminal communication unit 12 Control section 13 Display section 14 Storage section 15 Control Unit 151 Operation reception unit 152 Display processing section 2. Data Processing Device 21 Device communication unit 22 Memory section 23 Control Unit 231 Reception Department 232 Head count identification department 233 Pattern Identification Unit 234 Coefficient Identification Unit 235 Emissions Identification Department 236 Output section S Data Processing System

Claims

1. a storage unit that stores a first feed coefficient, which is a coefficient indicating the nitrogen content contained in feces excreted by livestock within a unit period and is determined by the type of feed given to the livestock, and a second feed coefficient, which is a coefficient indicating the nitrogen content contained in urine excreted by livestock within a unit period and is determined by the type of feed given to the livestock, and stores the type of feed in association with a plurality of weight ranges of the livestock; a head count determination unit that determines the number of livestock belonging to each of the plurality of weight ranges for a plurality of livestock raised in a farm; For each of the plurality of weight ranges, the number of heads belonging to the weight range identified by the head number identification unit is multiplied by the first feed coefficient corresponding to the type of feed associated with the weight range, thereby determining the N due to the feces of the plurality of livestock. ２ The first discharge amount, which is the O discharge amount, is specified, and the number of animals belonging to the weight range specified by the head number specifying unit is multiplied by the second feed coefficient corresponding to the type of feed associated with the weight range, thereby determining the N discharge amount resulting from the urine of the plurality of livestock. ２ a second emission amount, which is an N 2 O emission amount, is specified, and a total CO 2 emission amount is calculated by converting the total N 2 O emission amount resulting from the manure of the plurality of livestock into CO 2 emission amount based on the first emission amount and the second emission amount. ２ an emission determination unit that determines the equivalent amount; The total CO ２ an output unit that outputs the converted amount; A data processing device having:

2. a receiving unit for receiving input of a feces treatment method and a urine treatment method in the farm; the storage unit further stores a plurality of first emission factors, which are nitrogen emission factors of feces excreted by the livestock, in association with a plurality of feces treatment methods, and further stores a plurality of second emission factors, which are nitrogen emission factors of urine excreted by the livestock, in association with a plurality of urine treatment methods; the emission amount specifying unit specifies the first emission amount by multiplying the number of heads by the first emission coefficient stored in the memory unit in association with the feces treatment method received by the receiving unit, and specifies the second emission amount by multiplying the number of heads by the second emission coefficient stored in the memory unit in association with the urine treatment method received by the receiving unit.

2. The data processing device according to claim 1.

3. The emission amount specifying unit specifies the first emission amount as CO ２ The first CO 2 equivalent converted into the emission amount and the second emission amount are calculated as CO ２ The total CO 2 amount is calculated by adding up the second CO 2 amount converted into the emission amount. ２ Identify the conversion amount, 3. A data processing device according to claim 1 or 2.

4. The emission amount specifying unit specifies the total CO emission amount based on a total emission amount obtained by adding up the first emission amount and the second emission amount. ２ Identify the conversion amount, 3. A data processing device according to claim 1 or 2.

5. The discharge amount specifying unit is configured to calculate N by using the first feed coefficient and the second feed coefficient. ２ O emissions into CO ２ The CO2 equivalent converted to emissions is calculated using a predetermined feed coefficient. ２ O emissions into CO ２ If the CO 2 equivalent converted into the discharged amount is equal to or greater than the total CO 2 equivalent converted into the discharged amount, the total CO 2 equivalent is calculated by multiplying the number of heads by the predetermined feed coefficient. ２ Identify the conversion amount, 3. A data processing device according to claim 1 or 2.

6. the storage unit stores the weight ranges of the livestock raised in the breeding houses in association with each of a plurality of breeding houses provided in the breeding farm, and further stores the number of the livestock raised in the breeding houses in association with each of the plurality of breeding houses; the head count identification unit identifies the number of livestock belonging to each of the plurality of weight ranges by adding up the numbers of livestock stored in the storage unit in association with one or more rearing houses corresponding to each of the plurality of weight ranges; 2. The data processing device according to claim 1.

7. a receiving unit that receives input of the weight range of the livestock raised in each of a plurality of rearing houses provided in the farm and the number of the livestock raised in the rearing house, the head count identification unit identifies the number of livestock belonging to each of the plurality of weight ranges by adding up the numbers of livestock input in association with one or more rearing houses corresponding to each of the plurality of weight ranges; 2. The data processing device according to claim 1.

8. the discharge amount specifying unit updates the first discharge amount and the second discharge amount in response to the reception unit receiving an update of the weight range of the livestock raised in the breeding house.

8. A data processing device according to claim 7.

9. The emission amount specifying unit specifies the first emission amount and the second emission amount for each of a plurality of periods in which the weight range of the livestock does not change, and specifies the total CO ２ Identify the conversion amount, 2. The data processing device according to claim 1.

10. A computer having a storage unit that stores a first feed coefficient, which is a coefficient indicating the nitrogen content contained in feces excreted by livestock within a unit period and is determined by the type of feed given to the livestock, and a second feed coefficient, which is a coefficient indicating the nitrogen content contained in urine excreted by livestock within a unit period and is determined by the type of feed given to the livestock, and stores the types of feed in association with a plurality of weight ranges of the livestock, A step of identifying the number of livestock belonging to each of a plurality of weight ranges for a plurality of livestock kept at a farm; For each of the plurality of weight ranges, the number of animals belonging to the specified weight range is multiplied by the first feed coefficient corresponding to the type of feed associated with the weight range, thereby determining the N due to the feces of the plurality of livestock. ２ The first discharge amount, which is the O discharge amount, is specified, and the number of animals belonging to the specified weight range is multiplied by the second feed coefficient corresponding to the type of feed associated with the weight range, thereby determining the N discharge amount resulting from the urine of the plurality of livestock. ２ a second emission amount, which is an N 2 O emission amount, is specified, and a total CO 2 emission amount is calculated by converting the total N 2 O emission amount resulting from the manure of the plurality of livestock into CO 2 emission amount based on the first emission amount and the second emission amount. ２ Identifying a conversion amount; The total CO ２ outputting the converted amount; A data processing method comprising:

11. a processor included in an information processing device having a storage unit that stores a first feed coefficient, which is a coefficient indicating the nitrogen content contained in feces excreted by livestock within a unit period and is determined by the type of feed given to the livestock, and a second feed coefficient, which is a coefficient indicating the nitrogen content contained in urine excreted by livestock within a unit period and is determined by the type of feed given to the livestock, and stores the type of feed in association with a plurality of weight ranges of the livestock; a head count determination unit that determines the number of livestock belonging to each of the plurality of weight ranges for a plurality of livestock raised in a farm; For each of the plurality of weight ranges, the number of heads belonging to the weight range identified by the head number identification unit is multiplied by the first feed coefficient corresponding to the type of feed associated with the weight range, thereby determining the N due to the feces of the plurality of livestock. ２ The first discharge amount, which is the O discharge amount, is specified, and the number of animals belonging to the weight range specified by the head number specifying unit is multiplied by the second feed coefficient corresponding to the type of feed associated with the weight range, thereby determining the N discharge amount resulting from the urine of the plurality of livestock. ２ a second emission amount, which is an N 2 O emission amount, is specified, and a total CO 2 emission amount is calculated by converting the total N 2 O emission amount resulting from the manure of the plurality of livestock into CO 2 emission amount based on the first emission amount and the second emission amount. ２ an emission determination unit that determines the equivalent amount; The total CO ２ an output unit that outputs the converted amount; A program to make it function as such.

12. a data processing device and an information terminal capable of communicating with the data processing device, The data processing device includes: a storage unit that stores a first feed coefficient, which is a coefficient indicating the nitrogen content contained in feces excreted by livestock within a unit period and is determined by the type of feed given to the livestock, and a second feed coefficient, which is a coefficient indicating the nitrogen content contained in urine excreted by livestock within a unit period and is determined by the type of feed given to the livestock, and stores the type of feed in association with a plurality of weight ranges of the livestock; a head count determination unit that determines the number of livestock belonging to each of the plurality of weight ranges for a plurality of livestock raised in a farm; For each of the plurality of weight ranges, the number of heads belonging to the weight range identified by the head number identification unit is multiplied by the first feed coefficient corresponding to the type of feed associated with the weight range, thereby determining the N due to the feces of the plurality of livestock. ２ The first discharge amount, which is the O discharge amount, is specified, and the number of animals belonging to the weight range specified by the head number specifying unit is multiplied by the second feed coefficient corresponding to the type of feed associated with the weight range, thereby determining the N discharge amount resulting from the urine of the plurality of livestock. ２ a second emission amount, which is an N 2 O emission amount, is specified, and a total CO 2 emission amount is calculated by converting the total N 2 O emission amount resulting from the manure of the plurality of livestock into CO 2 emission amount based on the first emission amount and the second emission amount. ２ an emission determination unit that determines the equivalent amount; The total CO ２ an output unit that outputs the converted amount; and The information terminal ２ a terminal communication unit that receives information indicating the conversion amount from the data processing device; Data processing system.

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