Mutton sheep total mixed ration feed based on silage crisp rice straw

Abstract

The invention discloses a mutton sheep total mixed ration feed based on silage crisp rice straw, and belongs to the technical field of development and utilization of feed resources. The total mixed ration feed for the mutton sheep is prepared from the following raw materials in parts by weight: 40 to 50 parts of silage crisp-stalk rice straw, 20 to 30 parts of dry straw, 5 to 10 parts of protein feed, 15 to 25 parts of energy feed, 0.3 to 0.5 part of trace element premix, 0.3 to 0.5 part of calcium hydrogen phosphate and 0.3 to 0.5 part of table salt. Animal feeding tests show that the silage crisp-stalk rice straw in the total mixed ration feed for the mutton sheep can completely replace conventional silage corn straw. According to the total mixed ration feed for the mutton sheep, the production cost of the feed for the mutton sheep is reduced. Meanwhile, pollution of incineration or waste of the rice straw to the environment is reduced, waste is turned into wealth, and the method is environmentally friendly and sustainable.

Description

Technical Field

[0001] The present invention belongs to the technical field of feed resource development and utilization, and particularly relates to a total mixed ration feed for ruminants based on ensiled brittle-stalk rice straw. Background Art

[0002] Rice straw is an important by-product of crops, a production resource for industry and agriculture, and also a resource for renewable energy. As a large agricultural country, China annually produces 210 million tons of rice straw. In recent years, with the continuous increase in the unit yield of the main grain products, the output of rice straw in China has increased rapidly. Moreover, the traditional utilization methods of rice straw have been gradually weakened and phased out, and the treatment of a large amount of surplus rice straw has become a prominent problem in agricultural production. Due to the lack of effective utilization methods, rice straw is either discarded or burned in situ, which not only wastes a large amount of resources but also causes environmental pollution. In recent years, with the increasing attention to the ecological environment, how to resourcefully utilize rice straw to alleviate the burning phenomenon has become a popular research direction.

[0003] Using rice straw as feed is an important way to resourcefully utilize rice straw and also an important technical means to solve the shortage of roughage in the feeding of herbivores. There are various methods for the feed utilization of rice straw, which can be treated by physical, chemical, and biological technologies. The biological treatment method of rice straw is a current application hotspot. This method can effectively degrade the cellulose in rice straw, improve its palatability, and increase its nutritional value and feed intake. This method is environmentally friendly and sustainable.

[0004] After the straw of ordinary rice is harvested, its cellulose content is high, it is as flexible as a hemp rope, and its texture is tough. After being rubbed by a machine, the straw is not easy to be compacted, and the air in the straw is difficult to be discharged. At the same time, when ordinary rice is harvested, the content of soluble sugar and water in its straw is relatively low. And the air contained in the compacted straw, low soluble sugar content, and low water content are important factors affecting the silage of rice straw, resulting in low-quality silage of rice straw and even being unable to be used as feed for herbivores.

[0005] In the traditional feeding method for raising meat sheep, roughage is fed first and then concentrated supplementary feed is fed, with the roughage and concentrated supplementary feed being fed separately. The roughage is fed ad libitum, while the concentrated feed is fed in limited amounts. The feeding is rather arbitrary, the composition of the daily ration is unstable and the nutritional balance is poor. The pH value of the rumen changes greatly, disrupting the dynamic balance of digestion and metabolism in the rumen, which is not conducive to the digestion of crude fiber, resulting in low feed utilization rate, serious waste of roughage, low production level, and to varying degrees, problems such as slow growth of ruminants, long feeding cycle, high production cost, low commercialization degree and poor product quality, not meeting the needs of intensive scale production and industrial development of modern animal husbandry. The total mixed ration feed is a daily ration formulated by applying modern nutritional principles and technologies to meet the nutritional requirements of meat sheep at corresponding growth stages and production purposes. It can ensure the balanced supply of various nutritional components, realizing the scientific, mechanized, automated, quantitative and nutritionally balanced feeding of ruminants, and overcoming the problems of separate feeding of concentrate and roughage, nutritional imbalance, difficulty in quantification and low efficiency in traditional feeding methods.

[0006] At present, there has been no report on a total mixed ration feed for meat sheep based on ensiled brittle-stalk rice straw. Summary of the Invention

[0007] In order to improve the production performance of meat sheep and reduce the feed cost of meat sheep, the present invention provides a total mixed ration feed for meat sheep based on ensiled brittle-stalk rice straw.

[0008] Based on the ensiling of a kind of brittle-stalk rice straw, different formulas are designed according to different breeds and different physiological stages of meat sheep, and a total mixed ration feed for meat sheep based on ensiled brittle-stalk rice straw is developed, which has important practical significance for reducing the feed cost of meat sheep, improving the quality of mutton and increasing breeding benefits.

[0009] A total mixed ration feed for meat sheep based on ensiled brittle-stalk rice straw is composed of the following raw materials in parts by weight: 40 - 50 parts of ensiled brittle-stalk rice straw, 20 - 30 parts of dry straw, 5 - 10 parts of protein feed, 15 - 25 parts of energy feed, 0.3 - 0.5 part of trace element premix, 0.3 - 0.5 part of dicalcium phosphate and 0.3 - 0.5 part of salt; The ensiled brittle-stalk rice straw is a silage feed obtained by filling brittle-stalk rice straw into a closed facility (such as a silage pit, silo or wrapped bale, etc.) and undergoing microbial fermentation treatment; The dry straw is at least one of soybean straw and peanut vine; The protein feed is at least one of soybean meal, cottonseed meal, rapeseed meal, peanut meal and tea seed meal; The energy feed is at least one of corn, sorghum, barley, oats and wheat bran; The trace element premix contains trace elements such as vitamin A, vitamin D3, vitamin E, iron, copper, zinc, selenium, cobalt, calcium, and phosphorus; The calcium content in the dicalcium phosphate is 24.00% and the phosphorus content is 17.00%.

[0010] The further technical solutions are as follows: The closed facility is a silage pit, a silo tower, or wrapped sealing.

[0011] The preparation operation steps of the whole mixed ration feed for meat sheep are as follows: (1) Rub the brittle culm rice straw into 1 - 2 cm, fill it into the closed facility, compact it, and ferment it through microorganisms for 20 - 30 days to obtain fermented brittle culm rice straw; (2) Rub dry straws such as soybean straw or peanut vine into 1 - 2 cm grass powder; (3) Crush the protein feed and energy feed into 40 - mesh powders respectively; (4) According to the mass components of each substance in claim 1, put all of them into a mixing blender and mix for 5 - 8 minutes to obtain a uniform whole mixed ration feed for meat sheep.

[0012] The beneficial technical effects of the present invention are reflected in the following aspects: 1. After the brittle culm rice straw blooms, it becomes brittle and its nutritional components change greatly. The contents of cellulose and lignin decrease significantly, and the hemicellulose content increases by 10%, making the straw change from tough to brittle. After being rubbed by a machine, the straw is easy to compact and expel the air in the straw. When harvesting brittle culm rice, the soluble sugar and water content in its straw are significantly higher than those of ordinary rice straw. When the brittle culm rice straw is ensiled, it has the conditions for anaerobic fermentation. The straw contains appropriate amounts of soluble sugar and water, and the quality of the ensiled rice straw is good, which can be used as an excellent roughage resource for herbivores such as cattle and sheep. Compared with ordinary rice straw, the brittle culm rice straw used in the present invention is brittle and easy to crush, easy to compact and expel all the air during ensiling, and is more likely to achieve anaerobic fermentation. At the same time, the contents of crude protein, crude fat, and soluble sugar and other nutritional components are significantly higher than those of the ordinary rice straw silage feed, with higher nutritional value, more conducive to the microbial fermentation of straw, and the ensiled straw feed has high nutritional value, improving the digestibility of rice straw.

[0013] 2. The utilization of the brittle culm rice straw in the present invention for feed reduces the treatment cost. After the brittle culm rice straw becomes brittle, it is easier to collect and store, reducing the treatment cost. Ordinary rice straw is tough in texture, difficult to crush and not easy to rot, making it difficult and costly to handle.

[0014] 3. The whole mixed ration feed for meat sheep based on the silage of brittle-stalk rice straw of the present invention is more environmentally friendly. The silage of brittle-stalk rice straw can reduce the environmental pollution caused by straw burning or abandonment. Through the silage treatment, the straw can be converted into high-quality feed resources, which not only solves the problem of straw treatment but also reduces environmental pollution. The whole mixed ration feed for meat sheep based on brittle-stalk rice straw of the present invention can be used as the only feed for feeding sheep, and has significant economic, ecological and social benefits. Detailed implementation manners

[0015] The following examples are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0016] Example 1 Preparation of the whole mixed ration feed for breeding rams of Hu sheep According to the requirements of the present invention and in combination with the nutritional needs of breeding rams of Hu sheep during the breeding period, a formula for the whole mixed ration feed for breeding rams during the breeding period is prepared, as shown in Table 1.

[0017] Table 1 Raw material composition and nutritional components

[0018] Raw material name Quality (%) Nutritional component Content Silage crisp-stalk rice straw 35 Dry matter % 78.39 Peanut vine straw 25 Crude protein % 15.62 Corn flour 23 Crude fat % 3.88 Wheat bran 7.6 Crude fiber % 20.12 Soybean meal 8.5 Calcium % 0.81 Trace element premix* 0.32 Total phosphorus % 0.38 Calcium hydrogen phosphate 0.28 Digestible energy for sheep MJ / kg 12.81 Salt 0.30 Total 100 * The trace element premix is a 4% compound premix for breeding rams during the breeding period. In each kilogram of the compound premix, vitamin A is 250,000 - 500,000 IU, vitamin D3 is 100,000 - 200,000 IU, vitamin E ≥ 800 IU, iron is 3 - 7.5 g, copper is 0.3 - 0.5 g, zinc is 2 - 6 g, selenium is 15 - 75 mg, cobalt is 8 - 50 mg, calcium is 10% - 20%, and total phosphorus is 2% - 6%.

[0019] The specific preparation operation steps of the whole mixed ration feed are as follows: (1) Rub the prepared brittle-stalk rice straw into 1 - 2 cm, fill it into a closed facility (such as a silage pit, silo or wrapped bale, etc.), compact it, and carry out microbial fermentation for 20 - 30 days; (2) Rub dry straws such as soybean straw or peanut vine into 1 - 2 cm grass powder; (3) Crush the cake or whole-grain raw materials in the protein feed and energy feed into 40-mesh powder; (4) Weigh respectively according to the required mass composition of the raw materials, and then put them into the whole mixed ration mixer in the order of large amount first and small amount later, and mix for 5 - 8 minutes to obtain a uniform mixture, which is the whole mixed ration feed for meat sheep.

[0020] Example 2 Preparation of the whole mixed ration feed for non-pregnant or early pregnant ewes of Hu sheep According to the requirements of the present invention and in combination with the nutritional needs of non-pregnant or early pregnant ewes of Hu sheep, a formula for the whole mixed ration feed for non-pregnant or early pregnant ewes of Hu sheep is prepared, as shown in Table 2.

[0021] Table 2 Raw material composition and nutritional components Raw material name Quality (%) Nutritional component Content Silage crisp-stalk rice straw 45 Dry matter % 72.21 Peanut vine straw 25 Crude protein % 13.14 Corn flour 15.7 Crude fat % 3.13 Wheat bran 7.5 Crude fiber % 23.18 Soybean meal 4.5 Calcium % 0.82 Rapeseed cake 1.5 Total phosphorus % 0.39 Trace element premix 0.20 Digestible energy for sheep MJ / kg 12.75 Calcium hydrogen phosphate 0.30 Salt 0.30 Total 100 * The trace element premix is a 4% compound premix for pregnant ewes. In each kilogram of the compound premix, vitamin A is 175,000 - 500,000 IU, vitamin D3 is 65,000 - 200,000 IU, vitamin E ≥ 650 IU, iron is 1 - 7.5 g, copper is 0.2 - 0.5 g, zinc is 1 - 6 g, selenium is 10 - 75 mg, cobalt is 7.5 - 50 mg, calcium is 8% - 20%, and total phosphorus is 1.2% - 6%.

[0022] The specific preparation method of the total mixed ration feed is the same as that in Example 1.

[0023] Example 3 Preparation of total mixed ration feed for late - pregnancy Hu sheep ewes According to the requirements of the present invention, combined with the nutritional needs of Hu sheep ewes in the late pregnancy stage, a total mixed ration feed formula for Hu sheep ewes in the late pregnancy stage is prepared, as shown in Table 3.

[0024] Table 3 Raw material composition and nutritional components Raw material name Quality (%) Nutritional component Content Silage crisp-stalk rice straw 42 Dry matter % 74.07 Peanut vine straw 28 Crude protein % 14.21 Corn flour 16.2 Crude fat % 3.92 Wheat bran 7.5 Crude fiber % 23.54 Soybean meal 5.5 Calcium % 0.87 Trace element premix* 0.20 Total phosphorus % 0.41 Calcium hydrogen phosphate 0.30 Digestible energy for sheep MJ / kg 13.37 Salt 0.30 Total 100 * The trace element premix is a 4% compound premix for lactating ewes. In each kilogram of the compound premix, vitamin A is 250,000 - 500,000 IU, vitamin D3 is 70,000 - 200,000 IU, vitamin E ≥ 750 IU, iron is 1 - 7.5 g, copper is 0.2 - 0.5 g, zinc is 1 - 6 g, selenium is 10 - 75 mg, cobalt is 7.5 - 50 mg, calcium is 10% - 20%, and total phosphorus is 1.5% - 6%.

[0025] The specific preparation method of the total mixed ration feed for Hu sheep ewes in the late pregnancy stage is the same as that in Example 1.

[0026] Example 4 Preparation of total mixed ration feed for lactating crossbred Boer goat ewes According to the requirements of the present invention, combined with the nutritional needs of crossbred Boer goat ewes in the lactation stage, a total mixed ration feed formula for crossbred Boer goat ewes in the lactation stage is prepared, as shown in Table 4.

[0027] Table 4 Raw material composition and nutritional components Raw material name Quality (%) Nutritional component Content Silage crisp-stalk rice straw 35 Dry matter % 78.39 Peanut vine straw 30 Crude protein % 15.07 Corn flour 18.2 Crude fat % 4.23 Wheat bran 8.5 Crude fiber % 21.54 Soybean meal 7.5 Calcium % 0.92 Trace element premix* 0.20 Total phosphorus % 0.54 Calcium hydrogen phosphate 0.30 Digestible energy for sheep MJ / kg 15.18 Salt 0.30 Total 100 * The trace element premix is a 4% compound premix for lactating ewes. In each kilogram of the compound premix, vitamin A is 250,000 - 500,000 IU, vitamin D3 is 70,000 - 200,000 IU, vitamin E ≥ 750 IU, iron is 1 - 7.5 g, copper is 0.2 - 0.5 g, zinc is 1 - 6 g, selenium is 10 - 75 mg, cobalt is 7.5 - 50 mg, calcium is 10% - 20%, and total phosphorus is 1.5% - 6%.

[0028] The specific preparation method of the total mixed ration feed for crossbred Boer goat ewes in the lactation stage is the same as that in Example 1.

[0029] Example 5 Preparation of Total Mixed Ration Feed for Growing Boer Crossbred Goat Lambs According to the requirements of the present invention and in combination with the nutritional needs of growing Boer crossbred goat lambs, a total mixed ration feed formula for growing Boer crossbred goat lambs was prepared, as shown in Table 5.

[0030] Table 5 Raw Material Composition and Nutritional Components Raw material name Quality (%) Nutritional component Content Silage crisp-stalk rice straw 47 Dry matter % 70.98 Soybean straw 25 Crude protein % 12.35 Corn flour 15.7 Crude fat % 3.04 Wheat bran 6.5 Crude fiber % 24.21 Soybean meal 3.5 Calcium % 0.75 Rapeseed cake 1.5 Total phosphorus % 0.35 Trace element premix* 0.20 Digestible energy for sheep MJ / kg 12.12 Calcium hydrogen phosphate 0.30 Salt 0.30 Total 100 * The trace element premix is a 4% compound premix for growing lambs. In each kilogram of the compound premix, vitamin A is 150,000 - 300,000 IU, vitamin D3 is 30,000 - 100,000 IU, vitamin E ≥ 350 IU, iron is 0.5 - 4.5 g, copper is 0.1 - 0.3 g, zinc is 0.5 - 3 g, selenium is 10 - 75 mg, cobalt is 3.5 - 25 mg, calcium is 5% - 10%, and total phosphorus is 0.8% - 3%.

[0031] The specific preparation method of the total mixed ration feed for growing Boer crossbred goat lambs is the same as that in Example 1.

[0032] Example 6 Feeding Experiment of Total Mixed Ration Feed for Growing Hu Sheep Lambs Based on Silage of Brittle Culm Rice Straw According to the requirements of the present invention and in combination with the nutritional needs of Hu sheep lambs at 4 - 6 months old, a total mixed ration feed formula for growing Hu sheep lambs with silage of brittle culm rice straw was prepared, as shown in Table 6.

[0033] Table 6 Raw Material Composition and Nutritional Components Raw material name Quality (%) Nutritional component Content Silage crisp-stalk rice straw 46 Dry matter % 71.59 Soybean straw 25 Crude protein % 12.35 Corn flour 16.7 Crude fat % 3.15 Wheat bran 6.5 Crude fiber % 24.21 Soybean meal 3.5 Calcium % 0.75 Rapeseed cake 1.5 Total phosphorus % 0.35 Trace element premix* 0.20 Digestible energy for sheep MJ / kg 12.39 Calcium hydrogen phosphate 0.30 Salt 0.30 Total 100 * The trace element premix is a 4% compound premix for growing lambs. In each kilogram of the compound premix, vitamin A is 150,000 - 300,000 IU, vitamin D3 is 30,000 - 100,000 IU, vitamin E ≥ 350 IU, iron is 0.5 - 4.5 g, copper is 0.1 - 0.3 g, zinc is 0.5 - 3 g, selenium is 10 - 75 mg, cobalt is 3.5 - 25 mg, calcium is 5% - 10%, and total phosphorus is 0.8% - 3%.

[0034] The specific preparation method of the total mixed ration feed for growing Hu sheep lambs is the same as that in Example 1.

[0035] Using the total mixed ration feed for growing Hu sheep lambs prepared in this Example 6 as the test article, the following animal experiment was carried out: Test Objective: To compare the effects of replacing conventional silage corn straw with silage of brittle culm rice straw in the product of the present invention on the production performance, slaughter performance, and meat quality of growing Hu sheep lambs Source of Test Animals: All the sheep used in the test were from Lujiang Xiangrui Breeding Co., Ltd.

[0036] Experimental design: In accordance with the principle of similar body weight, body condition, and breed, 60 four-month-old weaned Hu sheep lambs were selected. The experiment adopted a completely randomized design, with an equal number of males and females, divided into two groups, namely the control group and the group of the present invention, with 30 sheep in each group. The experimental period was from April 7, 2024, to May 31, 2024, including a 5-day preliminary trial period and a 50-day formal trial period. The group of the present invention was fed with the product of Example 6 prepared by the applicant, and the control group was fed with traditional silage corn straw. That is, in the product of Example 6, silage brittle-stalk rice straw was substituted for silage corn straw, and the corresponding raw material mass ratios remained unchanged. The formulated total mixed ration for fattening lambs was fed at 2.0 - 2.5 kg per day.

[0037] During the experiment, the lambs were weighed on an empty stomach before morning feeding at the start and end of the experiment, and the feed consumption of each group was recorded. During the 50-day experimental period, the health status of the sheep in the control group and the group of the present invention was good, without any adverse conditions and no other diseases occurred.

[0038] The effects on the production performance of Hu sheep fattening lambs are shown in Table 7.

[0039] Table 7 Effects on the production performance of Hu sheep fattening lambs Group Initial weight (kg) Final weight (kg) Average daily gain (g / day) Average daily feed intake (kg / day) Feed to weight ratio (%) Control group 26.5 38.8 246 1.3 5.28 Group of the present invention 26.2 38.6 248 1.3 5.24 P value 0.182 0.231 0.543 0.172 0.192 Note: In the same column, data with different capital English letters in the shoulder notes indicate extremely significant differences ( P <0.01), and data with different lowercase English letters indicate significant differences ( P <0.05). The same applies hereinafter.

[0040] As can be seen from Table 7: During the 50-day experimental period, there were no significant differences (P>0.05) between the group of the present invention and the control group in the three indicators of average daily gain, average daily feed intake, and feed-to-gain ratio, indicating that the substitution of silage brittle-stalk rice straw for conventional silage corn straw in the group of the present invention had no effect on the daily gain, feed intake, and feed-to-gain ratio of Hu sheep fattening lambs.

[0041] The effects on the blood biochemical indexes of Hu sheep are shown in Table 8.

[0042] Table 8 Effects on the blood biochemical indexes of Hu sheep Group <![CDATA[Urea nitrogen (mmol / l -1 )]]> <![CDATA[Serum glucose (mmol / l -1 )]]> Total protein (g / l) <![CDATA[Total cholesterol (mmol / l -1 )]]> <![CDATA[Triglyceride (mmol / l -1 ).]]> Control group 5.41 3.72 62.90 1.71 0.118 Group of the present invention 5.38 3.77 62.97 1.73 0.114 P value 0.365 0.172 0.189 0.132 0.163 As can be seen from Table 8, during the 50-day experimental period, there were no significant differences (P>0.05) between the group of the present invention and the control group in the serum biochemical indexes of urea nitrogen, serum glucose, total protein, total cholesterol, and triglyceride, indicating that the substitution of silage brittle-stalk rice straw for conventional silage corn straw in the group of the present invention had no effect on the conventional serum biochemical indexes of Hu sheep fattening lambs.

[0043] The effects on the slaughter performance of Hu sheep fattening lambs are shown in Table 9.

[0044] Table 9 Effects on the slaughter performance of fattening lambs of Hu sheep Group Live weight before slaughter (kg) Carcass weight (kg) Slaughter rate (%) <![CDATA[Eye muscle area (cm 2 )]]> Control group 38.8 21.67 55.85 27.45 Group of the present invention 38.6 21.47 55.62 27.38 P value 0.157 0.178 0.245 0.167 As can be seen from Table 9, within the 50-day experimental period, there were no significant differences (P>0.05) in the slaughter performance indexes such as live weight before slaughter, carcass weight, slaughter rate, and eye muscle area between the group of the present invention and the control group, indicating that replacing conventional silage corn straw with the silage brittle-stalk rice straw used in the group of the present invention had no effect on the slaughter performance of fattening lambs of Hu sheep.

[0045] The effects on the meat quality of fattening lambs of Hu sheep are shown in Table 10.

[0046] Table 10 Effects on the meat quality of fattening lambs of Hu sheep Group Shearing force (kg·f) Moisture loss rate (%) Cooked meat rate (%) Brightness value Redness value Yellowness value Control group 3.57 12.18 54.17 35.12 15.26 4.01 Group of the present invention 3.52 13.24 55.02 34.97 15.37 3.93 P value 0.149 0.213 0.165 0.488 0.083 0.201 As can be seen from Table 10, within the 50-day experimental period, there were no significant differences (P>0.05) in the meat quality indexes such as shear force, water loss rate, cooked meat rate, lightness value, redness value, and yellowness value between the group of the present invention and the control group, indicating that replacing conventional silage corn straw with the silage brittle-stalk rice straw used in the group of the present invention had no effect on the meat quality of fattening lambs of Hu sheep.

[0047] In summary, a total mixed ration feed for meat sheep based on silage brittle-stalk rice straw produced by the present invention can replace traditional silage corn straw, and rationally utilizes the feed resources of brittle-stalk rice straw. It is a full-price ration scientifically formulated according to the nutritional requirements of different meat sheep breeds and different physiological stages and the total mixed ration model, avoiding nutritional imbalance caused by nutritional deficiency or picky eating of sheep, and reducing the feed cost of sheep. At the same time, it reduces environmental pollution caused by straw burning or abandonment.

Claims

1. A total mixed ration feed for meat sheep based on ensiled brittle rice straw, characterized in that, It is composed of the following raw materials in parts by weight: 40 - 50 parts of ensiled brittle-stalk rice straw, 20 - 30 parts of dry straw, 5 - 10 parts of protein feed, 15 - 25 parts of energy feed, 0.3 - 0.5 part of trace element premix, 0.3 - 0.5 part of calcium hydrogen phosphate, and 0.3 - 0.5 part of salt; The ensiled brittle-stalk rice straw is a silage feed obtained by filling brittle-stalk rice straw into a closed facility (such as a silage pit, silo or wrapped bale, etc.) and undergoing microbial fermentation treatment; The dry straw is at least one of soybean straw and peanut vine; The protein feed is at least one of soybean meal, cottonseed meal, rapeseed meal, peanut meal and tea seed meal; The energy feed is at least one of corn, sorghum, barley, oats and wheat bran; The trace element premix contains trace elements such as vitamin A, vitamin D3, vitamin E, iron, copper, zinc, selenium, cobalt, calcium, phosphorus, etc.; The calcium content in the calcium hydrogen phosphate is 24.00% and the phosphorus content is 17.00%; 2. The whole mixed ration feed for meat sheep based on ensiled brittle rice straw according to claim 1, characterized in that: The closed facility is a silage pit, silo or wrapped bale for sealing; 3. The preparation method of the whole mixed ration feed for meat sheep according to claim 1, characterized in that, The operation steps are as follows: (1) Rub the brittle-stalk rice straw into 1 - 2 cm lengths, fill it into a closed facility, compact it, and undergo microbial fermentation for 20 - 30 days to obtain fermented brittle-stalk rice straw; (2) Rub dry straw such as soybean straw or peanut vine into 1 - 2 cm grass powder; (3) Crush the protein feed and energy feed into 40-mesh powder respectively; (4) According to the mass components of each substance in claim 1, put all of them into a mixing blender and mix for 5 - 8 minutes to obtain a uniform total mixed ration feed for meat sheep.