A grain-saving type white-feather broiler breeding method

Abstract

The application provides a grain-saving type white-feather broiler breeding method, and relates to the technical field of white-feather broiler breeding.The white-feather broiler growth potential is synergistically improved by combining the chicken house environment control, breeding management and nutrition supply, the white-feather broiler is marketed at 40 days old, the body weight is 3kg, the feed-meat ratio is 1.30-1.34:1, and the European benefit index is above 550; wherein the chicken house environment control comprises feeding temperature control, feeding humidity control, chicken house air quality standard control and chicken house light control; the breeding management comprises feeding in a free-feeding mode by using a clean tank without controlled feed; and the nutrition supply comprises feeding granular feed with different components and different particle sizes according to different ages. By using the grain-saving type breeding method, the chicken marketing time can be shortened, the feed consumption can be saved, and the excrement discharge can be reduced, so that a large-scale cage white-feather broiler efficient production mode is established, and remarkable economic benefits and environmental protection effects are achieved.

Description

Technical Field

[0001] This invention belongs to the field of broiler chicken farming technology, specifically relating to a feed-saving broiler chicken farming method. Background Technology

[0002] The broiler chicken industry is the most large-scale, intelligent, and intensive industry in China's livestock and poultry farming sector. Thanks to standardized and unified management in the breeding process, as well as the timely introduction and application of new technologies, the industry has achieved significant growth in the past five years, with the number of chickens slaughtered soaring from 4 billion to nearly 8 billion. The three-dimensional multi-layer cage rearing technology has also developed rapidly during this period.

[0003] However, the industry currently faces numerous challenges. For instance, the short intestines and rapid digestion of broilers lead to significant differences in the conversion rates of different feed components. Consequently, in pursuit of rapid market entry, farms typically provide broilers with high-energy, high-protein diets. This feeding regimen not only results in broilers becoming overweight in the early stages of rearing but also causes increased disease and mortality rates in the later stages, leading to increased drug usage on farms. Furthermore, excess nutrients are excreted in feces, causing resource waste and environmental pollution, among other problems.

[0004] Therefore, in the face of future food supply pressures, scarcity of breeding land, and rising feed costs, developing a high-utilization and feed-saving breeding model is of great significance for improving my country's broiler production capacity and market competitiveness, as well as building an efficient, resource-saving, and environmentally friendly modern broiler industry. Summary of the Invention

[0005] The purpose of this invention is to provide a feed-saving method for raising broiler chickens. By combining chicken house environmental control, breeding management, and nutritional supply, the growth potential of broiler chickens is synergistically enhanced, achieving a slaughter weight of 3kg at 40 days of age, a feed conversion ratio of 1.30-1.34:1, and a European profitability index of over 550. The chicken house environmental control includes temperature control, humidity control, air quality standard control, and lighting control. The breeding management includes free-feeding with clean troughs and no feed control throughout the entire process. The nutritional supply includes feeding different components and particle sizes of pelleted feed according to different age groups.

[0006] The feed-saving breeding method provided by this invention can shorten the time to market for chickens, save feed consumption, and reduce manure discharge, thereby establishing a large-scale, high-efficiency production model for cage-raised broiler chickens.

[0007] In a preferred embodiment, the feeding temperature control includes:

[0008] 0-1 day old: Chicken house temperature 34℃; 2-3 day old: Chicken house temperature decreases by 1℃ each day; 4-7 day old: Chicken house temperature decreases by 0.5℃ each day; 14-20 day old: Chicken house temperature is 28℃; 21-27 day old: Chicken house temperature is 26℃; 28-34 day old: Chicken house temperature is 24℃; 35-40 day old: Chicken house temperature is 21.5℃.

[0009] Broiler chickens are homeothermic animals without sweat glands, their bodies are covered with feathers, and they primarily dissipate heat through respiration. The applicant's experiments revealed that under a free-feeding system with no controlled feed intake, chickens of different ages have significantly different environmental temperature requirements. Only at suitable temperatures can chickens stimulate their growth potential through free feeding. For example, for younger chickens, if the environmental temperature is low, their feed intake increases, but their growth is slow, requiring more energy to maintain body temperature rather than for growth. For older chickens, if the environmental temperature reaches or exceeds 27°C, heat stress will occur, manifesting as decreased feed intake, increased water intake, and loose stools. When the temperature reaches above 32°C, severe heat stress is likely to occur, resulting in difficulty breathing, open-mouth panting, elevated body temperature, flushed comb and wattles, and cyanosis, leading to mass mortality in a short period. Therefore, this invention designs the aforementioned feeding temperature control standard.

[0010] In a preferred embodiment, the feeding humidity control includes:

[0011] 1-7 days old: Humidity in the chicken house is 65%; 8-20 days old: Humidity in the chicken house is 60%; 21 days old - slaughter: Humidity in the chicken house is 55%.

[0012] Humidity in the chicken house directly affects the health and growth of broilers, especially in a free-feeding system where feed is readily available and not controlled. Excessive humidity promotes the development of pathogens and parasites, increasing the risk of coccidiosis and aspergillosis. Increased water absorption in the lungs can lead to pulmonary edema, severely impairing respiratory function. Furthermore, high humidity also hinders heat dissipation and reduces digestive enzyme activity, lowering feed digestibility. Conversely, low humidity causes significant water loss through respiration, leading to dehydration, increased water intake, and impaired digestion and absorption. Therefore, this invention specifically designs the aforementioned humidity control standards for a free-feeding system.

[0013] In a preferred embodiment, the air quality standard control of the chicken house includes:

[0014] From 0 days old to market weight, maintain the following air quality in the chicken house: oxygen >19.5%, carbon dioxide <4500ppm, carbon monoxide <10ppm, ammonia <10ppm, and dust <3.4mg / m³. 3 .

[0015] In a preferred embodiment, the chicken coop lighting control includes:

[0016] The lights-out time is ±0.5 hours from the local sunset time, and the duration of the lights-out is N hours. The correspondence between N and the age of the chickens is as follows: 0-1 days old: N=0; 2 days old: N=1; 3-7 days old: N=2; 8-35 days old: N=4; 36-40 days old: N=2.

[0017] In a preferred embodiment, the uncontrolled feeding method in the clean tank specifically includes:

[0018] 0 days old: 6 hours before the chicks enter the coop, put 1 / 3 of the feed in the feed tray for preheating; 12 hours after the chicks enter the coop, check the crop fullness rate and it should reach 85-90%; 24 hours later, check the crop fullness rate again and it should reach 95-100%.

[0019] Day 1: Add feed to the feed tray again to 1 / 2 full, and evenly distribute feed in the feed trough every 4 hours to stimulate the flock to eat;

[0020] 2-day-old: Fill the feed tray and evenly distribute the feed in the feed trough every 4 hours to stimulate the chickens to eat;

[0021] Day 3-7: Remove the cleaned feed trays one by one, fill the feed troughs with feed to a height of 2cm, and evenly distribute the feed every 4 hours to stimulate the flock to quickly adapt to feeding from the feed troughs;

[0022] 4-day-old animals are slaughtered. Feed is added to the feed trough 1 hour later, and then to the clean feed trough 2 hours later; this cycle is repeated until slaughter.

[0023] In a preferred embodiment, when the chicken coop lighting is controlled, if the feeding period conflicts with the light-off time, then feeding will not be carried out.

[0024] In broiler farming, a dark environment with lights out promotes better rest and development in chickens, stimulates the secretion of growth hormones, accelerates the growth of muscle and fat cells, promotes overall growth and development, improves flock uniformity, and reduces mortality, especially sudden death. Combining this with a free-feeding system (empty troughs without controlled feeding) increases the feeding speed of broilers, encouraging them to eat rapidly until their crops are full, breaking the traditional concept of "chickens eat for energy." Integrating lights out with empty trough management effectively regulates the metabolic balance of broilers, reduces cardiopulmonary stress, promotes the development of the immune system and gastrointestinal tract, improves the flock's disease resistance and stress resistance, reduces maintenance energy consumption, and promotes the full digestion and utilization of feed in the digestive tract. This improves feed efficiency, prevents undigested feed from being excreted due to overfeeding, significantly reduces the feed conversion ratio, and improves enterprise production efficiency.

[0025] In a preferred embodiment, the feeding of pelleted feed with different components and particle sizes according to different ages specifically includes:

[0026] 0-11 days old: feed broiler chicks crushed pellet feed; of which, 0-5 days old: feed small crushed pellet feed, 6-11 days old: feed large crushed pellet feed.

[0027] 12-24 days old: Feed broiler pelleted feed with a pellet diameter of 3.0-3.5 mm and a hardness of 40 N. The pellet length is 2-3 mm for 12-18 days old and 3-4 mm for 19-24 days old.

[0028] 25-34 days old: Feed broiler chicken pellet feed A, with a pellet diameter of 3.0-3.5 mm and a hardness of 43 N. Among them, the pellet length is 4-5 mm for 25-29 days old and 5-6 mm for 30-34 days old.

[0029] 35-40 days old: Feed broiler chicken pellet feed B, pellet diameter 3.5-4.0mm, pellet length 6-7mm, hardness 45N.

[0030] In a preferred embodiment, the broiler chick crushed pellet feed, by weight, consists of the following raw materials:

[0031] Corn 52.5-55.7 parts, soybean meal 27-31 parts, walnut meal 0.5-1.5 parts, corn gluten meal 3-4 parts, cottonseed protein 0.3-0.5 parts, sunflower meal 0.2 parts, feather meal 0.3-0.5 parts, nucleotide residue 0.2-0.3 parts, bone-derived dicalcium phosphate 1.3-1.5 parts, limestone powder 1-1.2 parts, wheat flour 5-6 parts, sodium chloride 0.2 parts, crude soybean oil 1 part, 70% lysine sulfate 0.65-0.7 parts. 1 part, liquid methionine 0.3-0.4 parts, L-threonine 0.12-0.16 parts, arginine 98% 0.03 parts, 50% valine 0.15 parts, isoleucine 0.02 parts, choline chloride 60% 0.3 parts, sodium humate 0.2 parts, baking soda 0.12 parts, microecological preparation 0.05 parts, Hemei enzyme 0.015 parts, glucose oxidase 0.01 parts, S7210 broiler chicken 0.2% compound premix 0.22 parts.

[0032] In a preferred embodiment, the method for preparing the broiler chick crushed pellet feed includes the following steps:

[0033] Mix all raw materials evenly according to the formula, pulverize them, and then pass them through a 2.0 mm sieve; preferably, the mixing time is 90-120 seconds.

[0034] The residue from the sieve enters the conditioning unit, where the steam saturation is adjusted using flash steam and the conditioning time is 180-200 seconds. It then enters the granulator, where the granulation temperature is 70-73℃. After granulation, the material is cooled to obtain granules with a hardness of 42N.

[0035] The resulting pellets are then screened after passing through a crusher: 3.5mm for the upper screen, 2.4mm for the middle screen, and 1.4mm for the lower screen. The product between the upper and middle screens is small broken feed pellets, while the product between the middle and lower screens is large broken feed pellets.

[0036] In a preferred embodiment, the broiler pellet feed, by weight, consists of the following ingredients:

[0037] Corn 45.5-49.2 parts, soybean meal 27-30 parts, corn gluten meal 3-5 parts, cottonseed protein 1-1.5 parts, sunflower meal 1 part, feather meal 1 part, nucleotide residue 0.5-0.1 parts, bone-derived dicalcium phosphate 1-1.2 parts, limestone powder 1-1.2 parts, flour 5-7 parts, sodium chloride 0.22 parts, crude soybean oil 2 parts, rice bran oil 2 parts, poultry fat 1 part, 70% lysine sulfate 0.68-0.72 parts, liquid methionine 0.35-0.45 parts of acid, 0.08-0.1 parts of L-threonine, 0.06 parts of 98% arginine, 0.03 parts of 50% valine, 0.01 parts of isoleucine, 0.02 parts of 60% choline chloride, 0.2 parts of sodium humate, 0.11 parts of baking soda, 0.05 parts of microecological preparation, 0.015 parts of Hemei enzyme, 0.01 parts of glucose oxidase, and 0.22 parts of S7211 broiler medium and large chicken compound premix.

[0038] In a preferred embodiment, the method for preparing the broiler chicken pellet feed includes the following steps:

[0039] Mix all raw materials except crude soybean oil and rice bran oil evenly according to the formula, pulverize them and pass them through a 2.5 mm sieve; preferably, the mixing time is 90-120 seconds.

[0040] The residue from the sieve enters the conditioning unit, where flash steam is used to adjust the steam saturation and conditioning for 250-280 seconds; it then enters the granulator, where the granulation temperature is 70-75℃, and the granules are cooled after granulation to obtain pellets.

[0041] The resulting granules are passed through a crusher, sprayed with a mixture of crude soybean oil and rice bran oil, cooled, and then sieved. The middle part is the finished product, with a particle diameter of 3.0-3.5 mm, a hardness of 40 N, and a PDI greater than 85%. Among them, the length of 12-18 day old granules is 2-3 mm; the length of 19-24 day old granules is 3-4 mm.

[0042] In a preferred embodiment, the broiler pellet feed for 25-34 day old chickens is composed of the following ingredients by weight:

[0043] Corn 43.6-49 parts, soybean meal 25-27 parts, corn gluten meal 3-5 parts, cottonseed protein 2 parts, sunflower meal 1.5 parts, feather meal 1.1 parts, nucleotide residue 0.5-0.1 parts, bone-derived dicalcium phosphate 1-1.2 parts, limestone powder 1-1.2 parts, wheat flour 5-7 parts, sodium chloride 0.23 parts, crude soybean oil 4.5 parts, rice bran oil 1.5 parts, poultry fat 1.5 parts, 70% lysine sulfate 0.71-0 0.76 parts, liquid methionine 0.3-0.4 parts, L-threonine 0.1-0.12 parts, arginine 98% 0.08 parts, 50% valine 0.07 parts, isoleucine 0.01 parts, choline chloride 60% 0.3 parts, sodium humate 0.2 parts, baking soda 0.09 parts, Hemei enzyme 0.015 parts, glucose oxidase 0.01 parts, S7212 broiler medium and large chicken compound premix 0.22 parts;

[0044] In a preferred embodiment, the method for preparing the pelleted feed for 25-34 day-old broiler chickens includes the following steps:

[0045] Mix all raw materials except crude soybean oil and rice bran oil evenly according to the formula, pulverize them and pass them through a 2.5 mm sieve; preferably, the mixing time is 90-120 seconds.

[0046] The residue from the sieve enters the conditioning unit, where flash steam is used to adjust the steam saturation and conditioning for 300-350 seconds; it then enters the granulator, where the granulation temperature is 70-80℃, and the granules are cooled after granulation to obtain pellets.

[0047] The obtained pellets are sieved, with an upper sieve aperture of 8mm and a lower sieve aperture of 2.8mm. A mixture of crude soybean oil and rice bran oil is sprayed on the pellets, and they are sieved again. The middle part of the sieve is the finished product, which has a diameter of 3.0-3.5mm and a hardness of 43N. The length of the feed pellets for 25-29 day old animals is 4-5mm, and the length of the feed pellets for 30-34 day old animals is 5-6mm. The PDI is greater than 85%.

[0048] In a preferred embodiment, the 35-40 day old broiler pellet feed is composed of the following raw materials by weight:

[0049] Corn 41.2-46.3 parts, soybean meal 25-28 parts, corn gluten meal 3-5 parts, cottonseed protein 2 parts, sunflower meal 2 parts, feather meal 1.2 parts, nucleotide residue 0.5-0.1 parts, bone-derived dicalcium phosphate 1-1.2 parts, limestone powder 0.9-1.1 parts, wheat flour 5-7 parts, sodium chloride 0.2 parts, crude soybean oil 5 parts, rice bran oil 1.5 parts, poultry fat 1.5 parts, 70% lysine sulfate 0.67-0 0.8 parts, liquid methionine 0.3-0.4 parts, L-threonine 0.12-0.16 parts, arginine 98% 0.12 parts, 50% valine 0.15 parts, isoleucine 0.01 parts, choline chloride 60% 0.3 parts, sodium humate 0.2 parts, baking soda 0.1 parts, Hemei enzyme 0.015 parts, glucose oxidase 0.01 parts, S7212 broiler medium and large chicken compound premix 0.22 parts.

[0050] In a preferred embodiment, the method for preparing the pelleted feed for 35-40 day old broilers includes the following steps:

[0051] Mix all raw materials except crude soybean oil and rice bran oil evenly according to the formula, pulverize them and pass them through a 2.5 mm sieve; preferably, the mixing time is 90-120 seconds.

[0052] The residue from the sieve enters the conditioning unit, where flash steam is used to adjust the steam saturation and conditioning for 300-350 seconds; it then enters the granulator, where the granulation temperature is 70-80℃, and the granules are cooled after granulation to obtain pellets.

[0053] The obtained particles are sieved, with an upper sieve aperture of 8mm and a lower sieve aperture of 2.8mm. A mixture of crude soybean oil and rice bran oil is sprayed on the particles, and then sieved again. The middle particles that pass through the sieve are the finished product, which has a diameter of 3.5-4.0mm, a particle length of 6-7mm, a hardness of 45N, and a PDI greater than 85%.

[0054] The particle size and hardness of pelleted feed significantly affect the feeding speed and intake of broilers, thus playing a crucial role in their growth and development. Specifically, from chicks weighing approximately 37g at hatching to 3kg at 40 days old, if the feed is too hard and too large, broilers will have difficulty ingesting it, resulting in slow growth and insufficient feed intake. Conversely, if the feed is too soft and too small, broilers will not chew it sufficiently, affecting gizzard digestion and absorption, and easily leading to indigestion and other problems. Therefore, the present invention rationally designs the hardness and particle size of the feed based on the age and weight of the broilers and a free-feeding mode with no feed control throughout the entire feeding process. This is crucial for reducing the feed conversion ratio of broilers.

[0055] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0056] This invention employs a free-feeding method with clean troughs and no feed control throughout the breeding management process. By combining chicken house environmental control, breeding management, and nutritional supply, it effectively solves the common problems in the broiler industry, such as excessive weight gain in the early stages of broiler breeding and high drug dosages leading to poor broiler health in the later stages. Furthermore, although this invention uses free-feeding, it improves broiler feeding progress and nutrient acquisition by controlling air, humidity, temperature, and lighting in the chicken house environment, as well as by using a reasonable feeding pattern and easily digestible pellet feed combination. This synergistically enhances the growth potential of broilers and effectively reduces mortality in the later stages of broiler development.

[0057] Using the technical solution provided by this invention, broiler chickens can achieve a slaughter weight of 3kg at 40 days of age, a feed conversion ratio of 1.30-1.34:1, and a European profitability index of over 550; the survival rate can reach over 99%. The technical solution provided by this invention eliminates the stress period associated with feed change, making it particularly suitable for large-scale farm applications. Detailed Implementation

[0058] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0059] The technical solution of this application will be described in detail below through specific embodiments:

[0060] Unless otherwise specified, the technical means used in this invention are conventional means well known to those skilled in the art. All raw materials, reagents, instruments, and equipment used in this invention can be purchased commercially or prepared using existing methods. Unless otherwise specified, all reagents used in this invention are of analytical grade. The compound premix used in this invention was purchased from Hefeng Food Co., Ltd., and the microecological preparation used in this invention was purchased from Shenyang Fengmei Biotechnology Co., Ltd. In the embodiments of this invention, the feed preparation method is as follows:

[0061] A. The method for preparing the crushed pellet feed for broiler chicks includes the following steps:

[0062] Mix all raw materials according to the formula for 90 seconds until uniform, then crush and pass through a 2.0 mm sieve. The residue enters the conditioner, where flash steam is used to adjust the steam saturation and condition for 180 seconds. The residue then enters the pellet mill at a pelleting temperature of 70℃. After pelleting, the pellets are cooled to obtain pellets with a hardness of 42N. The obtained pellets are then passed through a crusher and screened: 3.5 mm for the upper screen, 2.4 mm for the middle screen, and 1.4 mm for the lower screen. The intermediate product between the upper and middle screens is small broken pellet feed for 0-5 day old animals, while the intermediate product between the middle and lower screens is large broken pellet feed for 6-11 day old animals.

[0063] B. The method for preparing the 12-24 day old broiler pellet feed includes the following steps:

[0064] Mix all raw materials except crude soybean oil and rice bran oil according to the formula for 90 seconds until uniform, then pulverize and pass through a 2.5 mm sieve. The residue enters the conditioning unit, where flash steam is used to adjust the steam saturation and conditioning is performed for 250 seconds. The mixture then enters the granulator at a granulation temperature of 70℃. After granulation, the granules are cooled to obtain pellets. The obtained pellets are then passed through a crusher, sprayed with a mixture of crude soybean oil and rice bran oil, cooled, and sieved. The pellet diameter is 3.0-3.5 mm, the pellet hardness is 40 N, and the PDI is greater than 85%. Among them, the pellet length of 12-18 day old pellets is 2-3 mm, and the pellet length of 19-24 day old pellets is 3-4 mm.

[0065] C. The method for preparing the pelleted feed for 25-34 day old broilers includes the following steps:

[0066] Mix all raw materials except crude soybean oil and rice bran oil according to the formula, and mix for 90 seconds until uniform. After crushing, pass through a 2.5 mm sieve. The residue enters the conditioning unit, where the steam saturation is adjusted using flash steam, and the mixture is conditioned for 300 seconds. The mixture then enters the pellet mill at a pelleting temperature of 70℃. After pelleting, the pellets are cooled to obtain granules. The obtained granules are then sieved, with an upper sieve aperture of 8 mm and a lower sieve aperture of 2.8 mm. A mixture of crude soybean oil and rice bran oil is sprayed onto the granules, and the mixture is sieved again, with an upper sieve aperture of 8 mm and a lower sieve aperture of 2.8 mm. The middle sieve is the finished product, which has a diameter of 3.0-3.5 mm and a hardness of 43 N. The length of the feed pellets for 25-29 day old feeders is 4-5 mm, and the length of the feed pellets for 30-34 day old feeders is 5-6 mm. The PDI is greater than 85%.

[0067] D. The method for preparing the pelleted feed for 35-40 day old broilers includes the following steps:

[0068] Mix all raw materials except crude soybean oil and rice bran oil according to the formula, and mix for 90 seconds until uniform. After crushing, pass the mixture through a 2.5 mm sieve. The residue enters the conditioning unit, where the steam saturation is adjusted using flash steam, and the mixture is conditioned for 300 seconds. The mixture then enters the granulator, where the granulation temperature is 70℃. After granulation, the mixture is cooled to obtain granules. The obtained granules are then sieved, with an upper sieve aperture of 8 mm and a lower sieve aperture of 2.8 mm. A mixture of crude soybean oil and rice bran oil is sprayed onto the granules, and the mixture is sieved again, with an upper sieve aperture of 8 mm and a lower sieve aperture of 2.8 mm. The middle sieve is the finished product, which has a diameter of 3.5-4.0 mm, a particle length of 6-7 mm, a hardness of 45 N, and a PDI greater than 85%.

[0069] In this invention, the weight parts can be weight units known in the art such as μg, mg, g, kg, or multiples thereof, such as 1 / 10, 1 / 100, 10 times, 100 times, etc.

[0070] Example 1

[0071] A feed-saving method for raising broiler chickens involves combining chicken house environmental control, breeding management, and nutrient supply for large-scale farming, specifically including:

[0072] (I) Chicken House Environmental Control:

[0073] (1) Temperature control during rearing is shown in Table 1:

[0074] Table 1

[0075] 0 34 6 30.5 1 34 7 30 2 33 14 28 3 32 21 26 4 31.5 28 24 5 31 35-40 21.5

[0076] (2) Humidity control during rearing is shown in Table 2:

[0077] Table 2

[0078]

[0079]

[0080] (3) The air quality control standards for chicken houses are shown in Table 3:

[0081] Table 3

[0082] carbon dioxide <4500ppm carbon monoxide <10ppm ammonia <10ppm dust <![CDATA[<3.4mg / m 3 ]]>

[0083] (4) The time and duration of lights out during this experiment are shown in Table 4:

[0084] Table 4

[0085] 1 0 0 20-25 17:15-21:15 4 2 17:50-18:50 1 26-30 17:05-21:05 4 3-7 17:45-18:45 2 31-35 17:00-21:00 4 8-13 17:35-21:35 4 36-40 16:50-18:50 2 14-19 17:25-21:25 4

[0086] (II) Aquaculture management adopts a free-feeding method with clean troughs and no feed control, including:

[0087] 0 days old: 6 hours before the chicks enter the coop, put 1 / 3 of the feed in the feed tray for preheating; 12 hours after the chicks enter the coop, check the crop fullness rate and it should reach 85-90%; 24 hours later, check the crop fullness rate again and it should reach 95-100%.

[0088] Day 1: Add feed to the feed tray again to 1 / 2 full, and evenly distribute feed in the feed trough every 4 hours to stimulate the flock to eat;

[0089] 2-day-old: Fill the feed tray and evenly distribute the feed in the feed trough every 4 hours to stimulate the chickens to eat;

[0090] Day 3-7: Remove the cleaned feed trays one by one, fill the feed troughs with feed to a height of 2cm, and evenly distribute the feed every 4 hours to stimulate the flock to quickly adapt to feeding from the feed troughs;

[0091] 4-day-old animals are ready for slaughter. Feed is added to the feed trough one hour later, and then to the clean feed trough two hours later; this cycle continues until slaughter. If the feeding period conflicts with the lights-out time, feeding is not carried out.

[0092] (III) Nutritional supply: Feeding different components and particle sizes of pelleted feed according to different ages, including:

[0093] 0-11 days old: feed broiler chicks crushed pellet feed; of which, 0-5 days old: feed small crushed pellet feed, 6-11 days old: feed large crushed pellet feed.

[0094] The specific formula is as follows: 52.515 parts corn, 31 parts soybean meal, 1.5 parts walnut powder, 3 parts corn gluten meal, 0.4 parts cottonseed protein, 0.2 parts sunflower meal, 0.3 parts feather meal, 0.2 parts nucleotide residue, 1.5 parts bone-derived dicalcium phosphate, 1 part limestone powder, 5 parts wheat flour, 0.2 parts sodium chloride, 1 part crude soybean oil, 0.65 parts 70% lysine sulfate, 0.3 parts liquid methionine, 0.12 parts L-threonine, 0.03 parts 98% arginine, 0.15 parts 50% valine, 0.02 parts isoleucine, 0.3 parts 60% choline chloride, 0.2 parts sodium humate, 0.12 parts baking soda, 0.05 parts microecological preparation, 0.015 parts Hemei enzyme, 0.01 parts glucose oxidase, and 0.22 parts S7210 broiler chicken 0.2% compound premix.

[0095] 12-24 days old: Feed broiler pelleted feed; the pellet diameter is 3.0-3.5mm, the hardness is 40N, the pellet length is 2-3mm for 12-18 days old; and the pellet length is 3-4mm for 19-24 days old.

[0096] The specific formula is as follows: 45.565 parts corn, 29 parts soybean meal, 4.5 parts corn gluten meal, 1.5 parts cottonseed protein, 1 part sunflower meal, 1.1 parts feather meal, 1 part nucleotide residue, 1.1 parts bone-derived dicalcium phosphate, 1.1 parts limestone powder, 7 parts wheat flour, 0.22 parts sodium chloride, 2 parts crude soybean oil, 2 parts rice bran oil, 1 part poultry fat, 0.7 parts 70% lysine sulfate, 0.4 parts liquid methionine, 0.09 parts L-threonine, 0.06 parts 98% arginine, 0.03 parts 50% valine, 0.01 parts isoleucine, 0.02 parts 60% choline chloride, 0.2 parts sodium humate, 0.11 parts baking soda, 0.05 parts microecological preparation, 0.015 parts Hemei enzyme, 0.01 parts glucose oxidase, and 0.22 parts S7211 broiler medium and large chicken compound premix.

[0097] 25-34 days old: Feed broiler chicken pellet feed A, with a pellet diameter of 3.0-3.5 mm and a hardness of 43 N. Among them, the pellet length is 4-5 mm for 25-29 days old and 5-6 mm for 30-34 days old.

[0098] The specific formula is as follows: 46.275 parts corn, 26 parts soybean meal, 4 parts corn gluten meal, 2 parts cottonseed protein, 1.5 parts sunflower meal, 1.3 parts feather meal, 0.8 parts nucleotide residue, 1.2 parts bone-derived dicalcium phosphate, 1 part limestone powder, 6 parts wheat flour, 0.23 parts sodium chloride, 4.5 parts crude soybean oil, 1.5 parts rice bran oil, 1.5 parts poultry fat, 0.74 parts 70% lysine sulfate, 0.35 parts liquid methionine, 0.11 parts L-threonine, 0.08 parts 98% arginine, 0.07 parts 50% valine, 0.01 parts isoleucine, 0.3 parts 60% choline chloride, 0.2 parts sodium humate, 0.09 parts baking soda, 0.015 parts HeMei enzyme, 0.01 parts glucose oxidase, and 0.22 parts S7212 broiler medium-sized chicken compound premix.

[0099] 35-40 days old: Feed broiler chicken pellet feed B, pellet diameter 3.5-4.0mm, pellet length 6-7mm, hardness 45N;

[0100] The specific formula is as follows: 43.635 parts corn, 27 parts soybean meal, 5 parts corn gluten meal, 2 parts cottonseed gluten, 2 parts sunflower meal, 1.2 parts feather meal, 0.5 parts nucleotide residue, 1.2 parts bone-derived dicalcium phosphate, 0.9 parts limestone powder, 6 parts wheat flour, 0.2 parts sodium chloride, 5 parts crude soybean oil, 1.5 parts rice bran oil, 1.5 parts poultry fat, 0.75 parts 70% lysine sulfate, 0.35 parts liquid methionine, 0.14 parts L-threonine, 0.12 parts 98% arginine, 0.15 parts 50% valine, 0.01 parts isoleucine, 0.3 parts 60% choline chloride, 0.2 parts sodium humate, 0.1 parts baking soda, 0.015 parts HeMei enzyme, 0.01 parts glucose oxidase, and 0.22 parts S7212 broiler medium-sized chicken compound premix.

[0101] Example 2

[0102] A feed-saving method for raising broiler chickens combines chicken house environmental control, breeding management, and nutrient supply for large-scale farming. The chicken house environmental control and breeding management are exactly the same as in Example 1, the only difference being that the feed formula in this example is:

[0103] Broiler chick crushed pellet feed (0-11 days old): Corn 55.715 parts, soybean meal 27 parts, walnut meal 0.5 parts, corn gluten meal 4 parts, cottonseed protein 0.3 parts, sunflower meal 0.2 parts, feather meal 0.4 parts, nucleotide residue 0.3 parts, bone-derived dicalcium phosphate 1.3 parts, limestone powder 1.2 parts, wheat flour 5.5 parts, sodium chloride 0.2 parts, crude soybean oil 1 part, 70% lysine sulfate 0.71 parts, liquid... 0.4 parts methionine, 0.16 parts L-threonine, 0.03 parts 98% arginine, 0.15 parts 50% valine, 0.02 parts isoleucine, 0.3 parts 60% choline chloride, 0.2 parts sodium humate, 0.12 parts sodium bicarbonate, 0.05 parts microecological preparation, 0.015 parts Hemei enzyme, 0.01 parts glucose oxidase, 0.22 parts S7210 broiler chicken compound premix.

[0104] Broiler pelleted feed (12-24 days old): 48.045 parts corn, 30 parts soybean meal, 3 parts corn gluten meal, 1 part cottonseed gluten, 1 part sunflower meal, 1.1 parts feather meal, 0.6 parts nucleotide residue, 1 part bone-derived dicalcium phosphate, 1.2 parts limestone powder, 6 parts wheat flour, 0.22 parts sodium chloride, 2 parts crude soybean oil, 2 parts rice bran oil, 1 part poultry fat, 0.68 parts 70% lysine sulfate, liquid methionine... 0.35 parts of acid, 0.08 parts of L-threonine, 0.06 parts of 98% arginine, 0.03 parts of 50% valine, 0.01 parts of isoleucine, 0.02 parts of 60% choline chloride, 0.2 parts of sodium humate, 0.11 parts of baking soda, 0.05 parts of microecological preparation, 0.015 parts of Hemei enzyme, 0.01 parts of glucose oxidase, 0.22 parts of S7211 broiler medium-sized chicken compound premix.

[0105] Broiler chicken pellet feed (25-34 days old): 48.995 parts corn, 25 parts soybean meal, 3 parts corn gluten meal, 2 parts cottonseed gluten, 1.5 parts sunflower meal, 1.3 parts feather meal, 1 part nucleotide residue, 1.1 parts bone-derived dicalcium phosphate, 1.1 parts limestone powder, 5 parts wheat flour, 0.23 parts sodium chloride, 4.5 parts crude soybean oil, 1.5 parts rice bran oil, 1.5 parts poultry fat, 70% lysine sulfate. 0.76 parts, liquid methionine 0.4 parts, L-threonine 0.12 parts, arginine 98% 0.08 parts, 50% valine 0.07 parts, isoleucine 0.01 parts, choline chloride 60% 0.3 parts, sodium humate 0.2 parts, baking soda 0.09 parts, Hemei enzyme 0.015 parts, glucose oxidase 0.01 parts, S7212 broiler medium and large chicken compound premix 0.22 parts.

[0106] Broiler Pellet Feed (35-40 days old): 41.285 parts corn, 28 parts soybean meal, 5 parts corn gluten meal, 2 parts cottonseed gluten, 2 parts sunflower meal, 1.2 parts feather meal, 1 part nucleotide residue, 1.1 parts bone-derived dicalcium phosphate, 1 part limestone powder, 7 parts wheat flour, 0.2 parts sodium chloride, 5 parts crude soybean oil, 1.5 parts rice bran oil, 1.5 parts poultry fat, 0.67 parts 70% lysine sulfate, 0.3 parts liquid methionine, 0.12 parts L-threonine, 0.12 parts 98% arginine, 0.15 parts 50% valine, 0.01 parts isoleucine, 0.3 parts 60% choline chloride, 0.2 parts sodium humate, 0.1 parts sodium bicarbonate, 0.015 parts HeMei enzyme, 0.01 parts glucose oxidase, and 0.22 parts S7212 0.2% compound premix for medium to large broilers.

[0107] Example 3

[0108] A feed-saving method for raising broiler chickens combines chicken house environmental control, breeding management, and nutrient supply for large-scale farming. The chicken house environmental control and breeding management are exactly the same as in Example 1, the only difference being that the feed formula in this example is:

[0109] Broiler chick crushed pellet feed (0-11 days old): 53.195 parts corn, 29 parts soybean meal, 1 part walnut meal, 3.5 parts corn gluten meal, 0.5 parts cottonseed protein, 0.2 parts sunflower meal, 0.5 parts feather meal, 0.2 parts nucleotide residue, 1.2 parts bone-derived dicalcium phosphate, 1.2 parts limestone powder, 6 parts wheat flour, 0.2 parts sodium chloride, 1 part crude soybean oil, 0.69 parts 70% lysine sulfate, liquid egg... 0.36 parts of amino acid, 0.14 parts of L-threonine, 0.03 parts of 98% arginine, 0.15 parts of 50% valine, 0.02 parts of isoleucine, 0.3 parts of 60% choline chloride, 0.2 parts of sodium humate, 0.12 parts of baking soda, 0.05 parts of microecological preparation, 0.015 parts of Hemei enzyme, 0.01 parts of glucose oxidase, 0.22 parts of S7210 broiler chicken compound premix.

[0110] Broiler pelleted feed (12-24 days old): Corn 49.185 parts, soybean meal 27 parts, corn gluten meal 5 parts, cottonseed protein 1.3 parts, sunflower meal 1 part, feather meal 1.1 parts, nucleotide residue 0.5 parts, bone-derived dicalcium phosphate 1.2 parts, limestone powder 1.5 parts, wheat flour 5 parts, sodium chloride 0.22 parts, crude soybean oil 2 parts, rice bran oil 2 parts, poultry fat 1 part, 70% lysine sulfate 0.72 parts, liquid Methionine 0.45 parts, L-threonine 0.1 parts, arginine 98% 0.06 parts, valine 50% 0.03 parts, isoleucine 0.01 parts, choline chloride 60% 0.02 parts, sodium humate 0.2 parts, baking soda 0.11 parts, microecological preparation 0.05 parts, Hemei enzyme 0.015 parts, glucose oxidase 0.01 parts, S7211 broiler medium-sized chicken 0.2% compound premix 0.22 parts,

[0111] Broiler chicken pellet feed (25-34 days old): 43.665 parts corn, 27 parts soybean meal, 5 parts corn gluten meal, 2 parts cottonseed gluten, 1.5 parts sunflower meal, 1.3 parts feather meal, 0.5 parts nucleotide residue, 1.2 parts bone-derived dicalcium phosphate, 1 part limestone powder, 7 parts wheat flour, 0.23 parts sodium chloride, 4.5 parts crude soybean oil, 1.5 parts rice bran oil, 1.5 parts poultry fat, 70% lysine sulfate. Salt 0.71 parts, liquid methionine 0.3 parts, L-threonine 0.1 parts, arginine 98% 0.08 parts, valine 50% 0.07 parts, isoleucine 0.01 parts, choline chloride 60% 0.3 parts, sodium humate 0.2 parts, baking soda 0.09 parts, Hemei enzyme 0.015 parts, glucose oxidase 0.01 parts, S7212 broiler medium and large chicken compound premix 0.22 parts.

[0112] Broiler Pellet Feed (35-40 days old): 46.315 parts corn, 25 parts soybean meal, 5 parts corn gluten meal, 2 parts cottonseed gluten, 2 parts sunflower meal, 1.2 parts feather meal, 0.7 parts nucleotide residue, 1 part bone-derived dicalcium phosphate, 1.1 parts limestone powder, 5 parts wheat flour, 0.2 parts sodium chloride, 5 parts crude soybean oil, 1.5 parts rice bran oil, 1.5 parts poultry fat, 0.8 parts 70% lysine sulfate, 0.4 parts liquid methionine, 0.16 parts L-threonine, 0.12 parts 98% arginine, 0.15 parts 50% valine, 0.01 parts isoleucine, 0.3 parts 60% choline chloride, 0.2 parts sodium humate, 0.1 parts baking soda, 0.015 parts Hemei enzyme, 0.01 parts glucose oxidase, and 0.22 parts S7212 broiler medium and large-sized chicken compound premix.

[0113] Application examples

[0114] 1. Experimental Materials and Methods:

[0115] 1.1 Test time and location:

[0116] The experiment was conducted from September 9 to October 18, 2024. Broilers were raised from 0 to 40 days old and slaughtered at 3 a.m. on the 41st day old.

[0117] Experiment location: Chicken farm in Fuzhou Town, Wafangdian City, Liaoning Province.

[0118] 1.2 Experimental diet and experimental design:

[0119] 13,680 Cobb white-feathered broiler chickens were used as experimental animals and divided into 6 treatments: control groups 1, 2, and 3, and experimental groups 1, 2, and 3; each treatment had 2,280 chickens.

[0120] Chicken house management: A three-layer cage-type closed chicken house is adopted, with 19 medium-sized broiler chickens in each cage.

[0121] Among them, control group 1 adopted a three-stage "pellet feed-powder feed-pellet feed", namely the diet and feeding method of Example 1 in patent number CN201711096111.7;

[0122] Control group 2 adopted a three-stage "pellet feed-powder feed-grind feed" diet and feeding method as described in Example 2 of patent number CN202111279948.1;

[0123] Control group 3 adopted the same diet and feeding environment control standards as in Example 3 of this invention, the only difference being that control group 3 did not have empty troughs.

[0124] The diets for experimental groups 1, 2, and 3 were respectively those of Examples 1, 2, and 3 of this invention, and the feeding method was the free-feeding method of the clean trough without controlled feeding as described in this patent.

[0125] Broilers were slaughtered on an empty stomach at 3:00 AM on the morning of their 41st day old. The total weight of each group was measured at the time of slaughter.

[0126] 1.3 Measurement Indicators:

[0127] Record the weight of chicks upon entering the coop, crop fullness rate at 24 hours, number of deaths during the trial period, total weight of each group at slaughter, total feed intake, and calculate the average weight of chicks upon entering the coop, survival rate, feed conversion ratio, and European efficiency index.

[0128] 1.4 Data Processing:

[0129] The experimental data were analyzed using EXEL.

[0130] The European Benefit Index is calculated as follows: [(body weight × survival rate) / (feedback ratio × age at slaughter)] × 10000.

[0131] 2. Results and analysis are shown in Table 5:

[0132] Table 5

[0133]

[0134]

[0135] Results and Discussion: As shown in the table above, the application of this invention can effectively reduce the feed conversion ratio and mortality rate, especially significantly reducing the number of sudden deaths in medium and large-sized chickens, with an average European efficiency index reaching 568. Furthermore, the reduced feed conversion ratio saves feed costs and improves the economic efficiency of enterprises. It also reduces manure emissions. For caged, enclosed chicken houses, reduced manure emissions prevent environmental pollution, reduce worker workload, and avoid the risk of disease infection in broilers due to manure accumulation. Calculations show that the average manure output of the experimental group was 150g / bird less than that of the control group in the later stages of breeding. The better production performance data of the experimental group indicates that combining chicken house environmental control, breeding management, and nutritional supply in the broiler breeding process provided by this solution can synergistically promote the development and growth potential of broilers. Therefore, the broiler breeding effect is significantly better than existing technologies.

[0136] In summary, the method provided by this invention is particularly suitable for establishing standardized breeding in large-scale chicken farms, which can effectively reduce feed consumption, save energy, reduce costs and increase efficiency, and improve the production efficiency of breeding enterprises.

[0137] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A feed-saving method for raising broiler chickens, characterized in that, By combining chicken house environmental control, breeding management and nutrition supply, the growth potential of white-feathered broilers is synergistically enhanced, achieving a slaughter weight of 3kg at 40 days of age, a feed conversion ratio of 1.30-1.34:1, and a European profitability index of over 550. The chicken house environment control includes feeding temperature control, feeding humidity control, chicken house air quality standard control and chicken house lighting control; The breeding management includes feeding the animals freely with clean troughs and no feed control throughout the entire process, specifically including: 0 days old: 6 hours before the chicks enter the coop, put 1 / 3 of the feed in the feed tray for preheating; 12 hours after the chicks enter the coop, check the crop fullness rate, which should be 85-90%; 24 hours later, check the crop fullness rate again, which should be 95-100%. Day 1: Add feed to the feed tray again to 1 / 2 full, and evenly distribute feed in the feed trough every 4 hours to stimulate the flock to eat; 2-day-old: Fill the feed tray and evenly distribute the feed in the feed trough every 4 hours to stimulate the chickens to eat; 3-7 days old: Remove the cleaned feed trays one by one, fill the feed trough with feed to a height of 2cm, and evenly distribute the feed every 4 hours to stimulate the flock to quickly adapt to feeding from the feed trough; 4-day-old animals are slaughtered. Feed is added to the feed trough 1 hour later, and then to the clean feed trough 2 hours later. This cycle is repeated until slaughter. The nutritional supply includes feeding different components and different particle sizes of pelleted feed according to different ages, specifically including: 0-11 days old: feed broiler chicks crushed pellet feed; of which, 0-5 days old: feed small crushed pellet feed, 6-11 days old: feed large crushed pellet feed. 12-24 days old: Feed broiler pelleted feed with a pellet diameter of 3.0-3.5 mm and a hardness of 40 N. The pellet length is 2-3 mm for 12-18 days old and 3-4 mm for 19-24 days old. 25-34 days old: Feed broiler chicken pellet feed A, with a pellet diameter of 3.0-3.5 mm and a hardness of 43 N. Among them, the pellet length is 4-5 mm for 25-29 days old and 5-6 mm for 30-34 days old. 35-40 days old: Feed broiler chicken pellet feed B, pellet diameter 3.5-4.0mm, pellet length 6-7mm, hardness 45N.

2. The feed-saving broiler chicken farming method as described in claim 1, characterized in that, The feeding temperature control includes: 0-1 day old: Chicken house temperature 34℃; 2-3 day old: Chicken house temperature decreases by 1℃ each day; 4-7 day old: Chicken house temperature decreases by 0.5℃ each day; 14-20 day old: Chicken house temperature is 28℃; 21-27 day old: Chicken house temperature is 26℃; 28-34 day old: Chicken house temperature is 24℃; 35-40 day old: Chicken house temperature is 21.5℃.

3. The feed-saving broiler chicken farming method as described in claim 1, characterized in that, The humidity control during rearing includes: 1-7 days old: humidity in the chicken house is 65%; 8-20 days old: humidity in the chicken house is 60%; 21 days old - slaughter: humidity in the chicken house is 55%.

4. The feed-saving broiler chicken farming method as described in claim 1, characterized in that, The air quality standard control for the chicken coop includes: From 0 days old to market weight, maintain the following air quality in the chicken house: oxygen >19.5%, carbon dioxide <4500ppm, carbon monoxide <10ppm, ammonia <10ppm, and dust <3.4mg / m³. 3 .

5. The feed-saving broiler chicken farming method as described in claim 1, characterized in that, The chicken coop lighting control includes: The lights-out period is N hours, and the correspondence between N and the age of the chickens is as follows: 0-1 days old: N=0; 2 days old: N=1; 3-7 days old: N=2; 8-35 days old: N=4; 36-40 days old: N=2.

6. The feed-saving broiler chicken farming method as described in claim 1, characterized in that, The broiler chick crushed pellet feed, by weight, is composed of the following raw materials: Corn 52.5-55.7 parts, soybean meal 27-31 parts, walnut meal 0.5-1.5 parts, corn gluten meal 3-4 parts, cottonseed protein 0.3-0.5 parts, sunflower meal 0.2 parts, feather meal 0.3-0.5 parts, nucleotide residue 0.2-0.3 parts, bone-derived dicalcium phosphate 1.3-1.5 parts, limestone powder 1-1.2 parts, wheat flour 5-6 parts, sodium chloride 0.2 parts, crude soybean oil 1 part, 70% lysine sulfate 0.65-0.71 parts, liquid methionine 0.3-0.4 parts, L-threonine 0.12-0.16 parts, 98% arginine 0.03 parts, 50% valine 0.15 parts, isoleucine 0.02 parts, choline chloride 60% 0.3 parts, sodium humate 0.2 parts, baking soda 0.12 parts, microecological preparation 0.05 parts, Hemei enzyme 0.015 parts, glucose oxidase 0.01 parts, S7210 broiler chicken 0.2% compound premix 0.22 parts.

7. The feed-saving broiler chicken farming method as described in claim 1, characterized in that, The broiler chicken pellet feed, by weight, is composed of the following raw materials: Corn 45.5-49.2 parts, soybean meal 27-30 parts, corn gluten meal 3-5 parts, cottonseed protein 1-1.5 parts, sunflower meal 1 part, feather meal 1 part, nucleotide residue 0.5-0.1 parts, bone-derived dicalcium phosphate 1-1.2 parts, limestone powder 1-1.2 parts, flour 5-7 parts, sodium chloride 0.22 parts, crude soybean oil 2 parts, rice bran oil 2 parts, poultry fat 1 part, 70% lysine sulfate 0.68-0.72 parts, liquid methionine 0.35-0.45 parts, L-threonine 0.08-0.1 parts, 98% arginine 0.06 parts, 50% valine 0.03 parts, isoleucine 0.01 parts, choline chloride 60% 0.02 parts, sodium humate 0.2 parts, sodium bicarbonate 0.11 parts, microecological preparation 0.05 parts, Hemei enzyme 0.015 parts, glucose oxidase 0.01 parts, S7211 0.2% compound premix for broiler chickens 0.22 parts.

8. The feed-saving broiler chicken farming method as described in claim 1, characterized in that, The broiler pellet feed for 25-34 day old chickens is composed of the following ingredients by weight: Corn 43.6-49 parts, soybean meal 25-27 parts, corn gluten meal 3-5 parts, cottonseed protein 2 parts, sunflower meal 1.5 parts, feather meal 1.1 parts, nucleotide residue 0.5-0.1 parts, bone-derived dicalcium phosphate 1-1.2 parts, limestone powder 1-1.2 parts, flour 5-7 parts, sodium chloride 0.23 parts, crude soybean oil 4.5 parts, rice bran oil 1.5 parts, poultry fat 1.5 parts, 70% lysine sulfate 0.71-0.76 parts, liquid methionine 0.3-0.4 parts, L-threonine 0.1-0.12 parts, 98% arginine 0.08 parts, 50% valine 0.07 parts, isoleucine 0.01 parts, choline chloride 60% 0.3 parts, sodium humate 0.2 parts, baking soda 0.09 parts, Hemei enzyme 0.015 parts, glucose oxidase 0.01 parts, S7212 broiler chicken 0.2% compound premix 0.22 parts; The 35-40 day old broiler pellet feed consists of the following ingredients by weight: Corn 41.2-46.3 parts, soybean meal 25-28 parts, corn gluten meal 3-5 parts, cottonseed protein 2 parts, sunflower meal 2 parts, feather meal 1.2 parts, nucleotide residue 0.5-0.1 parts, bone-derived dicalcium phosphate 1-1.2 parts, limestone powder 0.9-1.1 parts, flour 5-7 parts, sodium chloride 0.2 parts, crude soybean oil 5 parts, rice bran oil 1.5 parts, poultry fat 1.5 parts, 70% lysine sulfate 0.67-0.8 parts, liquid methionine 0.3-0.4 parts, L-threonine 0.12-0.16 parts, 98% arginine 0.12 parts, 50% valine 0.15 parts, isoleucine 0.01 parts, choline chloride 60% 0.3 parts, sodium humate 0.2 parts, baking soda 0.1 parts, Hemei enzyme 0.015 parts, glucose oxidase 0.01 parts, S7212 broiler chicken 0.2% compound premix 0.22 parts.

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