Mutton sheep feeding method

Abstract

The invention provides a mutton sheep feeding method, and belongs to the technical field of livestock breeding. The feeding method comprises the following steps that two large free feeding troughs are placed in a breeding house, one large free feeding trough is used for containing mutton sheep PMR pellet feed, the other large free feeding trough is used for containing whole corn feed, and free feeding is adopted in the mutton sheep fattening period. The feeding method is simple and efficient, the labor amount is greatly reduced through separate trough free feeding, feed tower and feed line feeding and no additional coarse feed feeding, stirring is not needed, the pulverization rate is low, palatability is good, the feed intake is large, material loss during feeding can be reduced, and the dry matter feed intake and growth performance of the fattening sheep are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of animal husbandry, and in particular relates to a feeding method for mutton sheep. Background Art

[0002] At present, fattening of mutton sheep presents a regional and diversified development trend, with daily weight gain increasing day by day, and the breeding scale gradually expanding, forming concentrated fattening areas of mutton sheep such as Tang County, Hebei, Huairen, Shanxi, and Yanwo, Shandong. The feeding mode of concentrated fattening areas of mutton sheep is mainly high-concentrate feeding in separate meals. While the daily weight gain is high, there are some problems that are difficult to avoid at present, such as unstable roughage quality, limited rumination of mutton sheep, and susceptibility to digestive diseases; the feeding process is complicated, the feed ratio technology requirements are high, and the labor is large; the risk of urinary stones in mutton sheep is high, the feed is seriously overfed, and the pen environment is poor.

[0003] With the advancement of feeding mode, fattening of mutton sheep in some areas adopts corn pellets and concentrated feed pellets mixed or separately for free feeding. Only two meals of roughage are needed per day, which can greatly reduce labor intensity. The free feeding trough is fed once, and the sheep can feed freely for more than 3 days. However, in the middle of fattening, because corn is more palatable than concentrated feed, the corn pellet intake is too large, and there is a lack of easily digestible starch raw materials, which leads to serious corn overfeeding and severe rumen damage, which further leads to limited feed intake in the late fattening period and a significant reduction in daily weight gain.

[0004] With the progress in the field of feed processing technology, fully mixed pelleted diets for mutton sheep have been developed. By mixing grass meal, protein feed, energy feed and premixes, fully mixed pelleted diets are made. The fully mixed pelleted diets are added to the free-feeding trough by machinery for mutton sheep to feed freely. Feeding is simple and convenient, and labor is reduced. However, this feeding method also has the following disadvantages: the supply and quality of feed grass meal are unstable; corn is crushed during the pelleting process, and the degradation rate of corn in the rumen is accelerated, increasing the risk of acidosis in mutton sheep; in order to avoid acidosis, the starch concentration of the granular diet is low during the whole fattening period, and the daily weight gain is limited; the feed intake is large and the cost is high. The cost of fattening during the whole period is more than 50 yuan per head higher than other high-concentrate feeding modes. Summary of the invention

[0005] The present invention provides a feeding method for mutton sheep to solve the above technical problems.

[0006] The present invention provides a method for feeding mutton sheep, comprising the following steps: Two large ad libitum feeding troughs are placed in the pen, one of which is used for PMR pellet feed for mutton sheep, and the other is used for whole corn feed. During the fattening period, mutton sheep are fed ad libitum. The PMR pellet feed for mutton is calculated according to the following weight proportions, including: 10 to 15 parts of corn, 3 to 5 parts of flour, 1 to 3 parts of barley, 15 to 20 parts of soybean meal, 5 to 10 parts of DDGS, 5 to 13 parts of corn germ meal, 5 to 10 parts of bran, 3 to 6 parts of stone powder, 3 to 5 parts of peanut shell powder, 5 to 10 parts of soybean hulls, 5 to 8 parts of beet granules, and 1 to 5 parts of pumpkin seed hull granules. Furthermore, each large ad libitum feeding trough holds 0.8 to 1.2 tons of feed. Furthermore, the number of sheep in each pen is 80 to 120; Preferably, there are 100 sheep in each pen.

[0007] Furthermore, the enclosure is also provided with two small free-feeding troughs, one of which is used to store 10 kilograms of baking soda, and the other is used to store 10 kilograms of salt.

[0008] Furthermore, the fattening sheep in the pen are not fed with additional roughage; The large free feeding trough is fed with materials by mechanical feeding or feeding tower and feeding line. Furthermore, the pen is equipped with a free drinking water device and a heating belt. Furthermore, the mutton sheep PMR pellet feed also includes 2 to 3 parts of sugarcane molasses, 1 to 2 parts of bentonite, and 1 to 2 parts of expanded urea.

[0009] Furthermore, the PMR pellet feed for mutton sheep also includes 1 to 2 parts of ammonium chloride and 1 to 2 parts of rumen bypass fat powder.

[0010] Furthermore, the PMR pellet feed for mutton sheep also includes 0.5 to 1 part of sodium chloride and 1 part of premixed feed of complex vitamins and trace elements.

[0011] Furthermore, when the mutton sheep enter the fattening period, the fattening period feed is used to replace 1 / 3 of the stress period feed each time, and the sheep are transitioned to free feeding after 7 to 10 days.

[0012] Furthermore, the method for preparing the PMR pellet feed for mutton sheep comprises the following steps: First, all the raw materials are mixed, crushed, passed through a 3.0 sieve, steam-conditioned at a temperature of 60-70°C, and granulated in a granulator. The particle diameter is 3.5mm and the length is 8-10mm. After cooling, it is the PMR granular feed for mutton sheep.

[0013] The present invention has the following advantages: The feeding method for mutton sheep proposed in the present invention is rich in crude fiber content, has a stable source, good palatability, and promotes rumination of mutton sheep; adding a small amount of crushed corn for granulation and adding rumen-passing fat powder solves the problem of poor digestibility of whole corn, enriches the energy source, improves energy utilization efficiency, and reduces the risk of acidosis; using whole corn for free feeding will not quickly reduce rumen pH and promote rumination. The selected fattening sheep PMR pellet feed is rich in energy, crude protein, crude fiber, crude fat, vitamins and trace elements, and can effectively promote the weight gain rate of fattening sheep.

[0014] This feeding method is simple and efficient. It allows free feeding in separate troughs and feeding on the feed tower line without additional roughage, which greatly reduces the workload. It does not require stirring, has a low powdering rate, good palatability, and a large feed intake. It can reduce material loss during feeding and improve the dry matter intake and growth performance of fattening sheep. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the free feeding mode of PMR pellet feed and whole corn for fattening sheep of the present invention.

[0017] Description of reference numerals: 1. Corn feed tower, 2. PMR pellet feed tower for fattening sheep, 3. Feeding line, 4. Large ad libitum feeding trough for corn, 5. Large ad libitum feeding trough for fattening sheep PMR pellet feed, 6. Small ad libitum feeding trough for salt, 7. Small ad libitum feeding trough for baking soda, 8. Free drinking water bowl, 9. Pen fence. DETAILED DESCRIPTION The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0018] The embodiment of the present invention provides a method for feeding mutton sheep, comprising the following steps: Two large ad libitum feeding troughs are placed in the pen, one of which is used for PMR pellet feed for mutton sheep, and the other is used for whole corn feed. During the fattening period, mutton sheep are fed ad libitum. The PMR pellet feed for mutton is calculated according to the following weight proportions, including: 10 to 15 parts of corn, 3 to 5 parts of flour, 1 to 3 parts of barley, 15 to 20 parts of soybean meal, 5 to 10 parts of DDGS, 5 to 13 parts of corn germ meal, 5 to 10 parts of bran, 3 to 6 parts of stone powder, 3 to 5 parts of peanut shell powder, 5 to 10 parts of soybean hulls, 5 to 8 parts of beet granules, and 1 to 5 parts of pumpkin seed hull granules. The feeding method for mutton sheep proposed in the embodiment of the present invention adopts a feeding mode of free feeding of whole corn and mutton sheep PMR pellet feed in separate troughs without additional feeding of roughage, so as to solve the problems existing in the current high-concentrate feeding mode and the free feeding mode of whole mixed pellet ration, and also solve the problems of lack of high-quality roughage, unstable supply and quality.

[0019] In one embodiment of the present invention, during the stress period of meat sheep, lamb feed and corn straw are used for feeding.

[0020] In one embodiment of the present invention, when the mutton sheep enters the fattening period, the fattening period feed is used to replace 1 / 3 of the stress period feed each time, and the sheep are transitioned to free feeding after 7 to 10 days.

[0021] In one embodiment of the present invention, each large ad libitum feeding trough accommodates 0.8 to 1.2 tons of feed. Preferably, each large ad libitum feeding trough accommodates 1 ton of feed. In one embodiment of the present invention, the number of sheep in each pen is 80 to 120; preferably, the number of sheep in each pen is 100.

[0022] In one embodiment of the present invention, the housing further comprises two small free-feeding troughs, one of which is used to store 10 kilograms of baking soda, and the other is used to store 10 kilograms of salt.

[0023] Preferably, each large ad libitum feeding trough can hold 0.8-1.2 tons of feed, wherein one large ad libitum feeding trough is used for placing PMR pellet feed for mutton sheep, and the other large ad libitum feeding trough is used for placing whole corn feed, and mutton sheep are fed ad libitum during the fattening period; Preferably, the large ad libitum feeding trough for PMR pellet feed for meat sheep is named the ad libitum feeding trough for PMR pellet feed for fattening sheep; the large ad libitum feeding trough for whole grain corn feed is named the large corn ad libitum feeding trough; the small ad libitum feeding trough for baking soda is named the small baking soda ad libitum feeding trough; and the small ad libitum feeding trough for table salt is named the small salt ad libitum feeding trough. Furthermore, the fattening sheep in the pen are not fed with additional roughage. In one embodiment of the present invention, the large free-feeding trough is fed by mechanical feeding or feeding in the form of a feed tower and a feed line. The feeding in the form of a feed tower and a feed line is specifically to directly push the feed from the feed tower through the feed line into the large free-feeding trough by pressing a button. In one embodiment of the present invention, the shed is equipped with a free drinking water device and a heating belt, which does not freeze in winter, ensuring that the sheep flock can drink water freely every day.

[0024] In one embodiment of the present invention, the enclosure is equipped with audio equipment to play music for two hours every day.

[0025] In one embodiment of the present invention, the PMR pellet feed for mutton sheep further includes 1 to 3 parts of sugarcane molasses, 1 to 2 parts of bentonite, and 1 to 2 parts of expanded urea. In one embodiment of the present invention, the PMR pellet feed for mutton sheep further includes 1-2 parts of ammonium chloride and 1-2 parts of rumen bypass fat powder.

[0026] In one embodiment of the present invention, the PMR pellet feed for mutton sheep further includes 0.5 to 1 part of sodium chloride and 1 part of a premixed feed of complex vitamins and trace elements.

[0027] It should be noted that DDGS feed is a by-product of ethanol production and is commonly used in animal feed.

[0028] The PMR pellet feed for mutton sheep of the present invention is prepared from selected high-quality stable fiber sources, has good palatability, is rich in energy sources, reduces the risk of acidosis, and is combined with whole corn to adopt a free-feeding mode, which can effectively promote the weight gain rate of fattening sheep and reduce labor and feeding costs.

[0029] In one embodiment of the present invention, the method for preparing the PMR pellet feed for mutton sheep comprises the following steps: First, all the raw materials are mixed, crushed, passed through a 3.0 sieve, steam-conditioned at a temperature of 60-70°C, and granulated in a granulator. The particle diameter is 3.5mm and the length is 8-10mm. After cooling, it is the PMR granular feed for mutton sheep. In one embodiment of the present invention, the mixing time is 140 seconds. In one embodiment of the present invention, the particle size of the PMR pellet feed for mutton sheep is 3.5 mm and the length is 8 to 10 mm.

[0030] The PMR pellet feed for mutton prepared in the embodiment of the present invention has a pellet hardness of 10-12KG and a pellet durability index (PDI) of more than 90%.

[0031] The PMR pellet feed (Partially Mixed Ratio) for mutton sheep proposed in the embodiment of the present invention provides sufficient short fibers for fattening sheep and promotes rumination of mutton sheep by using feed raw materials with high crude fiber content, such as beet pellets, pumpkin seed husk pellets, peanut shell powder, soybean husk, etc. A small amount of grain raw materials and high-quality protein raw materials are used, which are easy to digest and absorb for mutton sheep in the middle stage of fattening after being crushed, and rumen fat powder is used to enrich the energy source, reduce the risk of acidosis, and increase daily weight gain. The feeding method of mutton sheep of the present invention specifically comprises the following steps: (1) During the stress period of mutton sheep, lamb feed is used for feeding, and the lamb feed is transitioned to free feeding after 7 to 10 days; (2) During the fattening period of mutton sheep, two large ad libitum feeding troughs were placed in the pen. One large ad libitum feeding trough was filled with 1 ton of whole corn kernels, and the other large ad libitum feeding trough was filled with 1 ton of mutton mutton PMR pellet feed. There were also two small ad libitum feeding troughs in the pen, each containing 10 catties of baking soda and 10 catties of salt. When the mutton sheep enter the fattening period, use mutton sheep PMR pellet feed and whole corn to gradually replace the stress period feed lamb feed, replacing 1 / 3 each time. After 7 to 10 days, transition to a large ad libitum feeding trough with only whole corn and another large ad libitum feeding trough with only mutton sheep PMR pellet feed; Free-feeding trough corn and PMR pellet feed for mutton sheep, after each meal, feed through a mechanical feeder or feed tower feed line, with an interval of 3-5 days between each feeding; Two small free-feeding troughs were used to place 10 catties of baking soda and 10 catties of salt respectively, for the sheep to feed freely. Ten kg was added each time after the sheep finished eating. The fattening sheep have free access to drinking water throughout the entire process; no additional roughage is fed to the meat sheep during the fattening period.

[0032] The present invention will be described in detail below with reference to embodiments.

[0033] Example 1 Preparation of PMR pellet feed for fattening sheep The raw materials are made into a premix feed according to their weight percentage: 13% corn, 5% flour, 3% barley, 13% corn germ meal, 19% soybean meal, 8% wheat bran, 7% DDGS, 5% peanut shell powder, 8% soybean hulls, 5% beet particles, 5% pumpkin seed hull particles, 2% liquid molasses (a mixture of cane molasses and water in a 1:1 ratio), 1% bentonite, 1.4% expanded urea, 1.6% ammonium chloride, 1.4% rumen bypass fat powder, 0.6% sodium chloride, and 1% multivitamin and trace element premix.

[0034] The processing technology includes: mixing the ingredients first, then crushing, passing through a 3.0 screen, steam conditioning at a temperature of 60-70°C, entering a pellet mill for pelleting, the particle diameter is 3.5mm, the length is 8-10mm, and after cooling, it becomes PMR pellet feed for fattening sheep.

[0035] Example 2 Preparation of PMR pellet feed for fattening sheep The raw materials are made according to their weight percentage: 15% corn, 3% flour, 3% barley, 10% corn germ meal, 20% soybean meal, 10% wheat bran, 8% DDGS, 3% peanut shell powder, 10% soybean hull, 5% beet granules, 4% pumpkin seed hull granules, 2% liquid molasses (a mixture of cane molasses and water in a ratio of 1:1), 1% bentonite, 1.4% expanded urea, 1.4% ammonium chloride, 1.2% rumen bypass fat powder, 1% sodium chloride, 1% multivitamin and trace element premix feed, wherein the mass ratio of multivitamins to trace elements is 1:1.

[0036] The processing technology includes: mixing the ingredients first, then crushing, passing through a 3.0 screen, steam conditioning at a temperature of 60-70°C, entering a pellet mill for pelleting, the particle diameter is 3.5mm, the length is 8-10mm, and after cooling, it becomes PMR pellet feed for fattening sheep.

[0037] Example 3 The feeding method of PMR pellet feed for fattening sheep includes the following steps: 1. After the newly purchased lambs arrive, they are divided into groups according to their weight, with about 100 lambs placed in each pen. During the stress period, they are fed with stress lamb feed, and it takes one week to transition to free feeding; 2. During the fattening period, two large free-feeding troughs are placed in the pen. Each free-feeding trough can store about 1 ton of feed. Two small free-feeding troughs are placed, which are used to store 10 kilograms of salt and 10 kilograms of baking soda respectively; 3. Use fattening sheep PMR pellet feed and corn to replace 1 / 3 of the lamb feed in the ad libitum feeding trough each time, and transition through 3-4 troughs to one ad libitum feeding trough filled with all sheep PMR pellet feed and the other ad libitum feeding trough filled with all whole corn. The transition time is about 7-10 days; 4. When all the free-feeding troughs are replaced with sheep PMR pellet feed and whole corn, the mutton sheep enter the fattening period. No roughage is fed during the fattening period. When the sheep PMR pellets or corn in the free-feeding trough are eaten up, the free-feeding trough is filled up with a mechanical feeding car or a feeding tower feed line. Generally, feed is added once every 3-5 days. 5. Install free drinking water bowls in the pens for sheep to drink freely, and install heating tape to prevent the water pipes from freezing in winter; 6. During the fattening period, the fattening sheep can eat and drink freely, and music is played for two hours every day.

[0038] Verification Example 1 The fattening sheep PMR pellet feed prepared in Example 1 was used for the experiment 1. Test materials In this experiment, 300 healthy Han sheep hybrid rams aged 2 to 3 months were purchased and had passed the stress period. They were of similar weight and had no significant difference. They were randomly divided into 3 groups, with 100 rams in each group.

[0039] 2. Test methods 2.1 Experimental design and grouping 300 Han sheep hybrid rams were randomly divided into 3 groups, 100 in each group. The experimental group followed Example 3, using PMR pellet feed and corn in separate troughs for free feeding, and the diet consisted of corn and PMR pellet feed. The control group was fed with conventional high-concentrate feed in divided meals. In the early fattening stage, the diet consisted of corn, soybean meal, cottonseed meal, corn DDGS, wheat bran, baking soda, and premix in the following mass percentages: 58:12:13:7:5:1:4; in the late fattening stage, the diet consisted of corn, soybean meal, cottonseed meal, corn DDGS, wheat bran, baking soda, and premix in the following mass percentages: 70:8:12:5:0:1:4.

[0040] Among them, the premix was purchased from Beijing Sanyuan Hefeng Animal Husbandry Co., Ltd., standard number: Q / HDHFJ 0001-2022, production license number: Jingshi (2020) 06086; The main raw materials include: stone powder, sodium chloride, magnesium oxide, ferrous sulfate, copper sulfate, zinc sulfate, manganese sulfate, sodium nitrite, vitamin A, vitamin Da, vitamin E, rumen bypass vitamins, yeast culture, ruminant enzymes, carrier rice husk powder, etc.

[0041] Guaranteed value of product composition analysis (no less than 10% per kilogram of product)

[0042] The control group 2 was fed with concentrate and corn in separate troughs for free consumption, and was also fed with corn straw, that is, the daily diet included corn, concentrate, and corn straw; among them, the concentrate was purchased from Beijing Sanyuan Hefeng Animal Husbandry Co., Ltd., standard number: Q / HDHFJ0004-2022; production license number: Beijing Feed Certificate (2023) 06072; the main raw materials include: soybean meal, cottonseed meal, corn DDGS, calcium hydrogen phosphate, stone powder, sodium hydride, lysine, vitamin A, vitamin D3, ferrous sulfate, copper sulfate, calcium propionate, etc. The guaranteed values ​​of the main components of the product (%) are as follows:

[0043] Different groups were fed lamb transition feed for the first 20 days. After the stress period, they were transitioned from free feeding of lamb feed to different feeding modes. The pre-feeding period was 7 days and the experimental period was 90 days. 2.2 Feeding and management During the experimental period, the control group 1 was fed twice a day at 7:00 a.m. and 17:00 p.m., each meal lasting 20 min; After the control group 2 had finished eating, the free-feeding trough was filled up with a feeding cart. Generally, it was fed with corn stalks twice a day at 7:00 a.m. and 17:00 p.m. every 3-5 days, each time lasting 5 min. After the experimental group has finished eating the feed in the free-feed trough, the feed truck can be used to fill it up, usually at intervals of 3-5 days.

[0044] Each group had free access to drinking water.

[0045] 2.3 Growth performance measurement and economic benefit analysis The weight of the Han sheep hybrid rams was measured twice during the entire trial period, at the end of the pre-feeding period and at the end of the trial period. The whole flock was weighed to calculate the average weight of the Han sheep hybrid rams and the average daily weight gain during the entire fattening period. The feeding amount of different groups was recorded in detail to calculate the average feed intake and feed-to-weight ratio. The feed price and sheep selling price were recorded in detail at different stages for economic benefit analysis during the trial period.

[0046] 3. Results and analysis 3.1 Effects of different feeding modes on the growth performance of Han sheep hybrid rams The effects of different feeding modes on the growth performance of Han sheep hybrid rams are shown in Table 1. Table 1 shows that the slaughter weights of the control group 1, control group 2 and experimental group were 51.13kg, 52.05kg and 53.63kg respectively, and the experimental group was significantly higher than the control group 1 and control group 2 at the end of the experiment; the average daily weight gain of the control group 1, control group 2 and experimental group during the experimental period was 0.34kg, 0.35kg and 0.37kg respectively, and the average daily weight gain of the experimental group was 8.82% and 5.71% higher than that of the control group 1 and control group 2, respectively. In terms of feed-to-weight ratio, the control group 1 and control group 2 were 4.06% and 1.81% higher than the experimental group. At the same time, it can reduce the incidence of rumen acidosis and urinary stones.

[0047] Table 1 Effects of different feeding patterns on growth performance of Han sheep hybrid rams

[0048] 3.2 Effects of different feeding modes on the economic benefits of Han sheep hybrid rams The effects of different feeding modes on the economic benefits of Han sheep hybrid rams are shown in Table 2. Table 2 shows that the labor costs of the control group 1, the control group 2 and the experimental group were 23 yuan / head, 9 yuan / head and 6 yuan / head respectively, and the labor cost of the experimental group was lower than that of the two control groups; the net profit of each sheep in the control group 1, the control group 2 and the experimental group was 28.1 yuan, 61 yuan and 87.6 yuan respectively, and the net profit of the experimental group increased by 59.5 yuan / head compared with the control group 1 and 26.6 yuan / head compared with the control group 2.

[0049] The test results show that, compared with traditional high-concentrate feeding in separate meals and free feeding of concentrated corn, the PMR pellet feed and whole corn free feeding mode for fattening sheep of the present invention can reduce labor costs, increase the daily weight gain of fattening sheep, realize large-scale batch fattening sheep production, and increase the profit of each sheep by 20-60 yuan.

[0050] Table 2 Effects of different feeding modes on the economic benefits of Han sheep hybrid rams

[0051] Note: The unit price of Han sheep hybrid rams at the beginning and end of the experiment was 32 and 21 yuan / kg respectively, and the dry matter cost of the total mixed ration of the control group 1, the control group 2 and the experimental group was 2.57, 2.53 and 2.49 yuan / kg respectively.

[0052] The fattening sheep PMR pellet feed and feeding method of the present invention can solve the problems of lack of high-quality roughage, supply and unstable quality, reduce the labor input in the feeding process, and improve the dry matter intake and growth performance of fattening sheep. Finally, the breeding economic benefits of breeders are improved.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for feeding mutton sheep, characterized in that: The steps include: Two large ad libitum feeding troughs are placed in the pen, one of which is used for PMR pellet feed for mutton sheep, and the other is used for whole corn feed. During the fattening period, mutton sheep are fed ad libitum. The PMR pellet feed for mutton is calculated according to the following weight proportions, including: 10 to 15 parts of corn, 3 to 5 parts of flour, 1 to 3 parts of barley, 15 to 20 parts of soybean meal, 5 to 10 parts of DDGS, 5 to 13 parts of corn germ meal, 5 to 10 parts of bran, 3 to 6 parts of stone powder, 3 to 5 parts of peanut shell powder, 5 to 10 parts of soybean hulls, 5 to 8 parts of beet granules, and 1 to 5 parts of pumpkin seed hull granules.

2. The feeding method according to claim 1, characterized in that Each large ad libitum feeding trough holds 0.8 to 1.2 tons of feed.

3. The feeding method according to claim 1, characterized in that The number of sheep in each pen is 80 to 120; Preferably, there are 100 sheep in each pen.

4. The feeding method according to claim 1, characterized in that The shed is also provided with two small free-feeding troughs, wherein one small free-feeding trough is used for storing 10 jin of baking soda, and the other small free-feeding trough is used for storing 10 jin of salt.

5. The feeding method according to claim 1, characterized in that: The fattening sheep in the pen are not fed with roughage additionally; The large free feeding trough is fed with materials by mechanical feeding or feeding tower and feeding line.

6. The feeding method according to claim 1, characterized in that: The housing is provided with a free drinking water device and a heating belt.

7. The feeding method according to claim 1, characterized in that: The mutton sheep PMR pellet feed also includes 2-3 parts of sugarcane molasses, 1-2 parts of bentonite, and 1-2 parts of expanded urea.

8. The feeding method according to claim 7, characterized in that: The PMR pellet feed for mutton sheep also includes 1-2 parts of ammonium chloride and 1-2 parts of rumen bypass fat powder; Preferably, the PMR pellet feed for mutton sheep also includes 0.5-1 part of sodium chloride and 1 part of premixed feed of complex vitamins and trace elements.

9. The feeding method according to claim 1, characterized in that: When the mutton sheep enter the fattening period, the fattening period feed is used to replace 1 / 3 of the stress period feed each time, and the sheep are transitioned to free feeding after 7 to 10 days.

10. The feeding method according to claim 1, characterized in that: The method for preparing the PMR pellet feed for mutton sheep comprises the following steps: First, all the raw materials are mixed, crushed, passed through a 3.0 sieve, steam-conditioned at a temperature of 60-70°C, and granulated in a granulator. The particle diameter is 3.5mm and the length is 8-10mm. After cooling, it is the PMR granular feed for mutton sheep.

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