Feed preparation method for weaned lambs, feed and feeding method

Abstract

The invention relates to the field of feed and feeding thereof, and particularly discloses feed for weaned lambs and a preparation method and feeding method.The preparation method comprises the steps of granular material preparation and milk replacer preparation, and the granular material comprises a premix, other additives, a protein raw material, a mineral raw material, grease, a liquid raw material and an energy raw material; different raw materials are pretreated respectively, curing parameters, particle sizes, feed components and proportions are limited, the preparation process is more stable, the prepared feed is balanced in nutrition, can stimulate lambs to eat food, fully supplement nutrition for weaned lambs, reduce lamb weaning stress and promote lamb development and weight gain, the feeding method is appropriate, and the diarrhea and death rate of the lambs are reduced.

Description

Technical Field

[0001] The present application relates to the field of feed and feeding thereof, and more specifically, to a feed preparation method, feed and feeding method for weaned lambs. Background Art

[0002] Lambs are the primary link in the development of the mutton industry. The healthy development of lambs is related to the sustainable development of the entire industry. The feeding and management of lactating lambs is particularly important. For example, the use of supplementary feeding pellets and improved comprehensive management techniques to improve the production performance and survival rate of lactating lambs and reduce the incidence of diseases has been fully recognized by practitioners. At present, there are many types of lamb pellets on the market, and the nutritional levels vary greatly. Many pellet feeds have a relatively large weaning stress on weaned lambs, which will lead to poor feed intake, diarrhea, weakness and even death of lambs.

[0003] Therefore, it is now necessary to provide a stable preparation method, feed and feeding method for weaned lamb feed, so that the prepared feed has balanced and stable nutrition, good palatability, can stimulate lambs to eat, provide sufficient nutritional supplement for weaned lambs, reduce the stress of weaning lambs, promote lamb development and weight gain, and reduce lamb diarrhea and mortality. Summary of the invention

[0004] In order to solve the problem of less food intake and illness caused by feed change stress in weaned lambs, the present application provides a feed preparation method, feed and feeding method for weaned lambs.

[0005] In a first aspect, the present application provides a method for preparing feed for weaned lambs, including pellet preparation and milk replacer preparation, wherein the pellets include premixes and other additives, protein raw materials, mineral raw materials, oils and liquid raw materials, and energy raw materials, and the preparation of the pellets includes the following steps: S1: receiving, inspecting, weighing and distributing raw materials; S2: Mix the premix and other additives evenly, weigh and inspect for later use; The protein raw materials and energy raw materials are crushed, sieved and tested separately for later use; Screen the mineral raw materials for later use; Pre-treat, inspect and set aside grease and liquids; S3: Weigh the components obtained in S2 respectively, mix them evenly, then grind them into fine powder, granulate them while keeping them moist, cool them, inspect and package them to obtain granules; The preparation of the milk replacer comprises the following steps: mixing milk replacer raw materials uniformly to obtain the milk replacer.

[0006] By adopting the above scheme, the preparation method is simple, the nutrition is comprehensive, the raw materials of each component are pretreated separately, the prepared feed is dispersed more evenly, the nutrition is more fully absorbed by the lambs, and the raw materials of each component are not easy to precipitate and stratify after granulation. It is suitable for breeders to feed evenly. By using pellets and milk replacer as feed for weaned lambs, the aroma of milk replacer can stimulate lambs to eat pellets to supplement their nutrition, reducing the stress of weaning lambs.

[0007] In a specific embodiment, the protein raw material includes the following raw materials in parts by weight: 2-8 parts of whey powder, 0.1-0.2 parts of methionine, and 0.1-0.2 parts of lysine; The mineral raw materials include the following raw materials by weight: 0.3-1 part of calcium hydrogen phosphate, 0.5-1.5 parts of stone powder; The oil and liquid raw materials include the following raw materials in parts by weight: 0.5-1.0 part of soybean oil, 1-5 parts of molasses; The energy raw materials include the following raw materials by weight: 40-50 parts of first-grade corn, 5-15 parts of soybean meal, 2-7 parts of cooked soybeans, 5-15 parts of corn germ meal, 5-10 parts of bran, and 2-8 parts of glucose; The mass proportion of the premix and other additives is 1-2 parts, including the following components in mass percentage: baking soda 2.67-2.69%, yeast culture 6.7-6.8%, corn cob powder 10.039-10.041%, vitamin complex package 1.7-1.8%, stone powder 20-21%, zinc sulfate 1.885-1.887%, ferrous sulfate 1.625-1.627%, manganese sulfate 1.235-1.237%, potassium iodide 0.39-0.40%, copper sulfate 0.26-0.27%, sodium selenite 0.234-0.236%, cobalt chloride 0.195-0.197%, VB1 0.067-0.069%, and the balance is salt and any unavoidable impurities; The milk substitute powder comprises the following raw materials in parts by weight: 15-25 parts of whey powder, 50-60 parts of whole milk powder, 8-12 parts of glucose, 10-30 parts of soy protein and 3-8 parts of oil powder.

[0008] The milk replacer containing whey powder, whole milk powder, glucose, etc. has nutritional characteristics close to colostrum, is easy for lambs to digest, promotes rumen development, and prevents lamb diarrhea. It can promote the rapid development of the rumen of lambs while inducing feeding and avoiding lamb stress, improve the digestion and absorption function of lambs, and significantly reduce lamb diarrhea and mortality.

[0009] Adding certain protein raw materials, especially methionine and lysine, can enhance the metabolism of amino acids and fatty acids in rumen tissue, further enhancing the development of the lamb's rumen and its ability to absorb nutrients from feed.

[0010] Adding additive components of specific quality can adjust the acid-base balance in the lambs and supplement trace elements, increase the NH3-N concentration in the rumen, optimize the fermentation environment, reduce the VFA level, reduce gastrointestinal irritation of the lambs, and improve the digestion and absorption rate of feed. Adding a certain amount of stone powder to the additive components and mineral raw materials respectively can help disperse the powder and make the prepared feed more uniform.

[0011] In a specific embodiment, the pellet feed includes the following raw materials in parts by weight: 45 parts of first-grade corn, 12 parts of soybean meal, 5 parts of cooked soybeans, 15 parts of corn germ meal, 5.0 parts of bran, 3.7 parts of whey powder, 0.15 parts of methionine, 0.15 parts of lysine, 0.5 parts of calcium hydrogen phosphate, 0.5 parts of stone powder, 1 part of soybean oil, 3 parts of molasses, 8 parts of glucose, and 1 part of premix and other additives; The milk replacer powder includes the following raw materials in parts by weight: 20 parts of whey powder, 50 parts of whole milk powder, 10 parts of glucose, 15 parts of soy protein, and 5 parts of oil powder; The applicant found during lamb rearing that the lambs grew better under the above-mentioned weight ratio of pellet feed and milk replacer powder. This may be because the prevention of lamb stress, nutritional supplementation and promotion of rumen development reached a more balanced level at this time.

[0012] In a specific embodiment, moisturizing granulation and cooling include the following preparation steps: S1: Pressurizing the mixed material obtained by fine grinding, introducing steam to perform tempering and maturation, and obtaining a maturated material; S2: Granulate, dry, screen and naturally cool the cooked material to room temperature.

[0013] By adopting the above scheme, the prepared and matured feed can provide fermentation substrate for the lamb rumen and promote the lamb's absorption of nutrients.

[0014] In a specific embodiment, the pressurizing pressure is 0.3-0.4 MPa, and the aging temperature is 55-60°C.

[0015] By adopting the above scheme, the effect of modulation and maturation is better, the maturation effect is appropriate, the nutritional loss in the feed is small, it is suitable for lambs to absorb, and the effect of lamb nutritional supplementation is better.

[0016] In a specific embodiment, the primary corn in the energy raw material is crushed to an average particle size of 2-2.5 mm, and the average particle size of the pelleting in S3 is ≤3.5 mm.

[0017] By adopting the above scheme, the particle size of the raw material after crushing is suitable for the formula of the feed in this application, the lambs can absorb nutrients better, the feed has good palatability and does not cause too much pressure on the lambs to digest, the fiber in the feed has a certain size, so that the fiber occupies a certain volume in the lamb rumen to promote development, better promote the development of the lamb rumen wall muscles, promote the lamb rumen digestion and the stirring ability of the rumen contents, and have a better absorption effect on the feed nutrients.

[0018] In a specific embodiment, the pretreatment in S2 includes the following steps: adding 1 wt% of emulsifier and 18-20 wt% of water to the oil and liquid, and mixing and emulsifying at a rotation speed of 2500-2700 r / min for 3.5-4 minutes.

[0019] By adopting the above scheme, the emulsification effect of oils and liquids is better, the large molecular oil clusters are transformed into small molecular oil micro-emulsions, the oxidation and stability of oils are better controlled, the energy concentration of lamb feed is increased while improving the palatability of the feed, increasing the lamb's feed intake, promoting the absorption and utilization of fat-soluble vitamins, and enhancing the lamb's anti-stress ability.

[0020] In a specific embodiment, the oil and liquid further include 0.5-1.5 parts by weight of oligosaccharides, and the mass ratio of soybean oil to premix and other additives in the oil and liquid is (1-1.2):1.

[0021] By adopting the above scheme, adding a certain mass of oligosaccharides can further promote the development of the lamb's immune system, improve the immune effect, reduce stress-induced diseases and deaths, and safely pass the immune low point. By limiting the mass ratio of soybean oil to premix and other additives, at this mass ratio, the oil can better dissolve the fat-soluble vitamins in the premix and other additives of this application, thereby improving the nutritional absorption effect of the lamb.

[0022] Preferably, the vitamin complex package of the present application includes vitamin A, vitamin B6, vitamin C, and vitamin E in a mass ratio of 1:1:4:2.

[0023] In a second aspect, the present application provides a feed for weaned lambs, which is prepared using the above-mentioned method for preparing feed for weaned lambs.

[0024] By adopting the above scheme, the feed for weaned lambs has both the nutrition required by lambs and the function of promoting rumen development, which can better stimulate lambs to eat, has balanced and stable nutrition, reduces the stress of weaning lambs, promotes lamb development and weight gain, and reduces lamb diarrhea and mortality.

[0025] In a third aspect, the present application provides a method for feeding weaned lambs, which adopts the following scheme: feed pellets and milk replacer powder in a mass ratio of (1.5-4):1, feeding once in the morning and once in the evening, maintaining the temperature of the sheep house at 27-28°C when the lambs are 1-60 days old, and after moving into the fattening house, maintaining the temperature of the fattening house at 24-25°C.

[0026] By adopting the above scheme, the feeding method is suitable for the growth of lambs and the nutritional components of the feed of the present application, the raised lambs are well-nourished, not prone to disease, and have a good fattening effect.

[0027] The specific technical effects of this application are as follows: 1. The present application provides a method for preparing feed for weaned lambs, wherein pellets and milk replacer are prepared separately and mixed well when used, so as to ensure the freshness of the feed and prevent the breeding of many miscellaneous bacteria while providing certain appetite and nutritional effects to lambs; by separately preparing premixes and other additives, protein raw materials, mineral raw materials, oil and liquid raw materials, and energy raw materials and then mixing them evenly, the particle size of the prepared feed is more uniform and reasonable; by limiting the components of pellets and milk replacer, the nutrition is suitable for weaned lambs; by conditioning and maturing the finely ground mixture at a certain temperature and pressure, the nutrition of the raw materials is well retained and the lambs can easily absorb it; by limiting the particle size of different components, the prepared feed has better palatability and raw material absorption efficiency and promotes the development of the rumen; by limiting the components of oil and liquid, the pretreatment process and the mass ratio of premixes and other additives, the prepared feed is more stable and the lambs have a better absorption effect on vitamins.

[0028] 2. The present application provides a feed prepared by centrally adopting the above-mentioned feed preparation method for weaned lambs, and further provides a feeding method suitable for weaning stress prevention, nutritional supplementation and fattening of lambs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the feed production process for this application. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the examples. Unless otherwise specified, the experimental reagents in the preparation examples and examples are all conventional commercial brands or obtained by conventional preparation methods. Example

[0031] Example 1 S1: Raw materials receiving, inspection, weighing and use; S2: Energy raw material crushing: mix 40kg of first-grade corn, 15kg of soybean meal, 7kg of mature soybean, 15kg of corn germ meal, 10kg of bran and 2kg of glucose evenly, crush to an average particle size of 2mm, and sieve for inspection; Protein raw material crushing: Mix 2kg whey powder, 0.1kg methionine and 0.1kg lysine evenly, crush until there is no agglomeration, and sieve and test for later use; Screening of mineral raw materials: Mix 1kg of calcium hydrogen phosphate and 1.5kg of stone powder evenly, screen until there is no agglomeration and obvious impurities, and set aside; Pretreatment of oil and liquid raw materials: Mix 1.0kg of soybean oil, 5kg of molasses, 15g of emulsifier (Lizhimei), and 300g of water, mix and emulsify at a speed of 2700r / min for 3.5 minutes, and set aside; Preparation of premix and other additives: 26.7g baking soda, 67g yeast culture, 100.39g corn cob powder, 2.25g vitamin A, 2.25g vitamin B6, 9g vitamin C, 4.5g vitamin E, 200g stone powder, 18.85g zinc sulfate, 16.25g ferrous sulfate, 12.35g manganese sulfate, 3.9g potassium iodide, 2.6g copper sulfate, 2.34g sodium selenite, 1.95g cobalt chloride, 10.67g VB, 530g salt were weighed and tested for later use; S3: Weigh each component obtained in S2 separately, mix them evenly, control the mixing uniformity (the ratio of the standard deviation of the concentration of each component in the mixture to the average value) within 5%, and make the color uniform after mixing. Perform the tempering and maturation process under the action of steam with a pressure of 0.3Mpa, and mature the material to 55°C before granulation. The material enters the ring die of the granulator and is pressed into granular materials with a diameter of 3.5mm under the action of the roller mechanism and pressure. After that, the granular materials enter the cooling and drying tower, and are naturally cooled by air to reach room temperature before entering the granular material finished product screen for screening and grading. After passing the inspection, they are quantitatively packaged to obtain granular materials; Preparation of milk replacer: 15 kg of whey powder, 50 kg of whole milk powder, 8 kg of glucose, 30 kg of soy protein and 8 kg of oil powder are mixed evenly to obtain milk replacer.

[0032] Mix the granular material and milk replacer powder in a mass ratio of 3:1.

[0033] Example 2 S1: Raw materials receiving, inspection, weighing and use; S2: Energy raw material crushing: mix 50kg of first-grade corn, 5kg of soybean meal, 2kg of mature soybean, 5kg of corn germ meal, 10kg of bran and 2kg of glucose evenly, crush to an average particle size of 2mm, and sieve for inspection; Protein raw material crushing: Mix 8kg whey powder, 0.1kg methionine and 0.1kg lysine evenly, crush until there is no agglomeration, and sieve and test for later use; Screening of mineral raw materials: Mix 0.3kg of calcium hydrogen phosphate and 0.5kg of stone powder evenly, screen until there is no agglomeration and obvious impurities, and set aside; Pretreatment of oil and liquid raw materials: Mix 1.0 kg soybean oil, 5 kg molasses, 15 g emulsifier (Lizhimei), and 300 g water, mix and emulsify at a speed of 2700 r / min for 3.5 minutes, and set aside; Preparation of premix and other additives: 26.7g baking soda, 67g yeast culture, 100.39g corn cob powder, 2.25g vitamin A, 2.25g vitamin B6, 9g vitamin C, 4.5g vitamin E, 200g stone powder, 18.85g zinc sulfate, 16.25g ferrous sulfate, 12.35g manganese sulfate, 3.9g potassium iodide, 2.6g copper sulfate, 2.34g sodium selenite, 1.95g cobalt chloride, 10.67g VB, 530g salt were weighed and tested for later use; S3: Weigh each component obtained in S2 separately, mix them evenly, control the mixing uniformity (the ratio of the standard deviation of the concentration of each component in the mixture to the average value) within 5%, and make the color uniform after mixing. Perform the tempering and maturation process under the action of steam with a pressure of 0.3Mpa, and mature the material to 55°C before granulation. The material enters the ring die of the granulator and is pressed into granular materials with a diameter of 3.5mm under the action of the roller mechanism and pressure. After that, the granular materials enter the cooling and drying tower, and are naturally cooled by air to reach room temperature before entering the granular material finished product screen for screening and grading. After passing the inspection, they are quantitatively packaged to obtain granular materials; Preparation of milk replacer: 15 kg of whey powder, 50 kg of whole milk powder, 8 kg of glucose, 30 kg of soy protein and 8 kg of oil powder are mixed evenly to obtain milk replacer.

[0034] Mix the granular material and milk replacer powder in a mass ratio of 3:1.

[0035] Example 3 S1: Raw materials receiving, inspection, weighing and use; S2: Energy raw material crushing: mix 45kg of first-grade corn, 12kg of soybean meal, 5kg of mature soybean, 15kg of corn germ meal, 5kg of bran and 10kg of glucose evenly, crush to an average particle size of 2mm, and sieve for inspection; Protein raw material crushing: Mix 3.7kg whey powder, 0.15kg methionine and 0.15kg lysine evenly, crush until there is no agglomeration, and sieve and test for later use; Screening of mineral raw materials: Mix 0.5kg of calcium hydrogen phosphate and 0.5kg of stone powder evenly, screen until there is no agglomeration and obvious impurities, and set aside; Pretreatment of oil and liquid raw materials: Mix 1.0 kg soybean oil, 3 kg molasses, 15 g emulsifier (Lizhimei), and 300 g water, mix and emulsify at a speed of 2700 r / min for 3.5 minutes, and set aside; Preparation of premix and other additives: 26.7g baking soda, 67g yeast culture, 100.39g corn cob powder, 2.25g vitamin A, 2.25g vitamin B6, 9g vitamin C, 4.5g vitamin E, 200g stone powder, 18.85g zinc sulfate, 16.25g ferrous sulfate, 12.35g manganese sulfate, 3.9g potassium iodide, 2.6g copper sulfate, 2.34g sodium selenite, 1.95g cobalt chloride, 10.67g VB, 530g salt were weighed and tested for later use; S3: Weigh each component obtained in S2 separately, mix them evenly, control the mixing uniformity (the ratio of the standard deviation of the concentration of each component in the mixture to the average value) within 5%, and make the color uniform after mixing. Perform the tempering and maturation process under the action of steam with a pressure of 0.3Mpa, and mature the material to 55°C before granulation. The material enters the ring die of the granulator and is pressed into granular materials with a diameter of 3.5mm under the action of the roller mechanism and pressure. After that, the granular materials enter the cooling and drying tower, and are naturally cooled by air to reach room temperature before entering the granular material finished product screen for screening and grading. After passing the inspection, they are quantitatively packaged to obtain granular materials; Preparation of milk replacer: 20 kg of whey powder, 50 kg of whole milk powder, 10 kg of glucose, 15 kg of soy protein and 5 kg of oil powder are mixed evenly to obtain milk replacer.

[0036] Mix the granular material and milk replacer powder in a mass ratio of 3:1.

[0037] Example 4 S1: Raw materials receiving, inspection, weighing and use; S2: Energy raw material crushing: mix 45kg of first-grade corn, 12kg of soybean meal, 5kg of mature soybean, 15kg of corn germ meal, 5kg of bran and 10kg of glucose evenly, crush to an average particle size of 2mm, and sieve for inspection; Protein raw material crushing: Mix 3.7kg whey powder, 0.15kg methionine and 0.15kg lysine evenly, crush until there is no agglomeration, and sieve and test for later use; Screening of mineral raw materials: Mix 0.5kg of calcium hydrogen phosphate and 0.5kg of stone powder evenly, screen until there is no agglomeration and obvious impurities, and set aside; Pretreatment of oil and liquid raw materials: Mix 1.0 kg soybean oil, 3 kg molasses, 15 g emulsifier (Lizhimei), and 300 g water, mix and emulsify at a speed of 2700 r / min for 3.5 minutes, and set aside; Preparation of premix and other additives: 26.7g baking soda, 67g yeast culture, 100.39g corn cob powder, 2.25g vitamin A, 2.25g vitamin B6, 9g vitamin C, 4.5g vitamin E, 200g stone powder, 18.85g zinc sulfate, 16.25g ferrous sulfate, 12.35g manganese sulfate, 3.9g potassium iodide, 2.6g copper sulfate, 2.34g sodium selenite, 1.95g cobalt chloride, 10.67g VB, 530g salt were weighed and tested for later use; S3: Weigh each component obtained in S2 separately, mix them evenly, control the mixing uniformity (the ratio of the standard deviation of the concentration of each component in the mixture to the average value) within 5%, and make the color uniform after mixing. Perform the tempering and maturation process under the action of steam with a pressure of 0.2Mpa, and mature the material to 55°C before granulation. The material enters the ring die of the granulator and is pressed into granular materials with a diameter of 3.5mm under the action of the roller mechanism and pressure. After that, the granular materials enter the cooling and drying tower, and are naturally cooled by air to reach room temperature before entering the granular material finished product screen for screening and grading. After passing the inspection, they are quantitatively packaged to obtain granular materials; Preparation of milk replacer: 20 kg of whey powder, 50 kg of whole milk powder, 10 kg of glucose, 15 kg of soy protein and 5 kg of oil powder are mixed evenly to obtain milk replacer.

[0038] Mix the granular material and milk replacer powder in a mass ratio of 3:1.

[0039] Example 5 S1: Raw materials receiving, inspection, weighing and use; S2: Energy raw material crushing: mix 45kg of first-grade corn, 12kg of soybean meal, 5kg of mature soybean, 15kg of corn germ meal, 5kg of bran and 10kg of glucose evenly, crush to an average particle size of 2mm, and sieve for inspection; Protein raw material crushing: Mix 3.7kg whey powder, 0.15kg methionine and 0.15kg lysine evenly, crush until there is no agglomeration, and sieve and test for later use; Screening of mineral raw materials: Mix 0.5kg of calcium hydrogen phosphate and 0.5kg of stone powder evenly, screen until there is no agglomeration and obvious impurities, and set aside; Pretreatment of oil and liquid raw materials: Mix 1.0 kg soybean oil, 3 kg molasses, 15 g emulsifier (Lizhimei), and 300 g water, mix and emulsify at a speed of 2700 r / min for 3.5 minutes, and set aside; Preparation of premix and other additives: 26.7g baking soda, 67g yeast culture, 100.39g corn cob powder, 2.25g vitamin A, 2.25g vitamin B6, 9g vitamin C, 4.5g vitamin E, 200g stone powder, 18.85g zinc sulfate, 16.25g ferrous sulfate, 12.35g manganese sulfate, 3.9g potassium iodide, 2.6g copper sulfate, 2.34g sodium selenite, 1.95g cobalt chloride, 10.67g VB, 530g salt were weighed and tested for later use; S3: Weigh the components obtained in S2 separately, mix them evenly, and control the mixing uniformity (the ratio of the standard deviation of the concentration of each component in the mixture to the average value) within 5%. The color after mixing is uniform and consistent. The material is tempered and matured under the action of steam with a pressure of 0.3Mpa, and the material is matured to 55°C before granulation. The material enters the ring die of the granulator and is pressed into granular materials with a diameter of 4.5mm under the action of the roller mechanism and pressure. After that, the granular materials enter the cooling and drying tower, and are naturally cooled by air to reach room temperature before entering the granular finished product screen for screening and grading. After passing the inspection, they are quantitatively packaged to obtain granular materials; Preparation of milk replacer: 20 kg of whey powder, 50 kg of whole milk powder, 10 kg of glucose, 15 kg of soy protein and 5 kg of oil powder are mixed evenly to obtain milk replacer.

[0040] Mix the granular material and milk replacer powder in a mass ratio of 3:1.

[0041] Example 6 S1: Raw materials receiving, inspection, weighing and use; S2: Energy raw material crushing: mix 45kg of first-grade corn, 12kg of soybean meal, 5kg of mature soybean, 15kg of corn germ meal, 5kg of bran and 10kg of glucose evenly, crush to an average particle size of 2mm, and sieve for inspection; Protein raw material crushing: Mix 3.7kg whey powder, 0.15kg methionine and 0.15kg lysine evenly, crush until there is no agglomeration, and sieve and test for later use; Screening of mineral raw materials: Mix 0.5kg of calcium hydrogen phosphate and 0.5kg of stone powder evenly, screen until there is no agglomeration and obvious impurities, and set aside; Pretreatment of oil and liquid raw materials: Mix 0.5 kg soybean oil, 3 kg molasses, 15 g emulsifier (Lizhimei), and 300 g water, mix and emulsify at a speed of 2700 r / min for 3.5 minutes, and set aside; Preparation of premix and other additives: 26.7g baking soda, 67g yeast culture, 100.39g corn cob powder, 2.25g vitamin A, 2.25g vitamin B6, 9g vitamin C, 4.5g vitamin E, 200g stone powder, 18.85g zinc sulfate, 16.25g ferrous sulfate, 12.35g manganese sulfate, 3.9g potassium iodide, 2.6g copper sulfate, 2.34g sodium selenite, 1.95g cobalt chloride, 10.67g VB, 530g salt were weighed and tested for later use; S3: Weigh each component obtained in S2 separately, mix them evenly, control the mixing uniformity (the ratio of the standard deviation of the concentration of each component in the mixture to the average value) within 5%, and make the color uniform after mixing. Perform the tempering and maturation process under the action of steam with a pressure of 0.3Mpa, and mature the material to 55°C before granulation. The material enters the ring die of the granulator and is pressed into granular materials with a diameter of 3.5mm under the action of the roller mechanism and pressure. After that, the granular materials enter the cooling and drying tower, and are naturally cooled by air to reach room temperature before entering the granular material finished product screen for screening and grading. After passing the inspection, they are quantitatively packaged to obtain granular materials; Preparation of milk replacer: 20 kg of whey powder, 50 kg of whole milk powder, 10 kg of glucose, 15 kg of soy protein and 5 kg of oil powder are mixed evenly to obtain milk replacer.

[0042] Mix the granular material and milk replacer powder in a mass ratio of 3:1.

[0043] Example 7 S1: Raw materials receiving, inspection, weighing and use; S2: Energy raw material crushing: mix 45kg of first-grade corn, 12kg of soybean meal, 5kg of mature soybean, 15kg of corn germ meal, 5kg of bran and 10kg of glucose evenly, crush to an average particle size of 2mm, and sieve for inspection; Protein raw material crushing: Mix 3.7kg whey powder, 0.15kg methionine and 0.15kg lysine evenly, crush until there is no agglomeration, and sieve and test for later use; Screening of mineral raw materials: Mix 0.5kg of calcium hydrogen phosphate and 0.5kg of stone powder evenly, screen until there is no agglomeration and obvious impurities, and set aside; Pretreatment of oil and liquid raw materials: Mix 1kg soybean oil, 3kg molasses, 1kg oligosaccharide, 15g emulsifier (Lizhimei), and 300g water, mix and emulsify at a speed of 2700r / min for 3.5 minutes, and set aside; Preparation of premix and other additives: 26.7g baking soda, 67g yeast culture, 100.39g corn cob powder, 2.25g vitamin A, 2.25g vitamin B6, 9g vitamin C, 4.5g vitamin E, 200g stone powder, 18.85g zinc sulfate, 16.25g ferrous sulfate, 12.35g manganese sulfate, 3.9g potassium iodide, 2.6g copper sulfate, 2.34g sodium selenite, 1.95g cobalt chloride, 10.67g VB, 530g salt were weighed and tested for later use; S3: Weigh each component obtained in S2 separately, mix them evenly, control the mixing uniformity (the ratio of the standard deviation of the concentration of each component in the mixture to the average value) within 5%, and make the color uniform after mixing. Perform the tempering and maturation process under the action of steam with a pressure of 0.3Mpa, and mature the material to 55°C before granulation. The material enters the ring die of the granulator and is pressed into granular materials with a diameter of 3.5mm under the action of the roller mechanism and pressure. After that, the granular materials enter the cooling and drying tower, and are naturally cooled by air to reach room temperature before entering the granular material finished product screen for screening and grading. After passing the inspection, they are quantitatively packaged to obtain granular materials; Preparation of milk replacer: 20 kg of whey powder, 50 kg of whole milk powder, 10 kg of glucose, 15 kg of soy protein and 5 kg of oil powder are mixed evenly to obtain milk replacer.

[0044] Mix the granular material and milk replacer powder in a mass ratio of 3:1.

[0045] Example 8 S1: Raw materials receiving, inspection, weighing and use; S2: Energy raw material crushing: mix 45kg of first-grade corn, 12kg of soybean meal, 5kg of mature soybean, 15kg of corn germ meal, 5kg of bran and 10kg of glucose evenly, crush to an average particle size of 2mm, and sieve for inspection; Protein raw material crushing: Mix 3.7kg whey powder, 0.15kg methionine and 0.15kg lysine evenly, crush until there is no agglomeration, and sieve and test for later use; Screening of mineral raw materials: Mix 0.5kg of calcium hydrogen phosphate and 0.5kg of stone powder evenly, screen until there is no agglomeration and obvious impurities, and set aside; Pretreatment of oil and liquid raw materials: Mix 1 kg soybean oil, 3 kg molasses, 15 g emulsifier (Lizhimei), and 300 g water, mix and emulsify at a speed of 2700 r / min for 3.5 minutes, and set aside; Preparation of premix and other additives: 26.7g baking soda, 67g yeast culture, 100.39g corn cob powder, 2.25g vitamin A, 2.25g vitamin B6, 9g vitamin C, 4.5g vitamin E, 200g stone powder, 18.85g zinc sulfate, 16.25g ferrous sulfate, 12.35g manganese sulfate, 3.9g potassium iodide, 2.6g copper sulfate, 2.34g sodium selenite, 1.95g cobalt chloride, 10.67g VB, 530g salt were weighed and tested for later use; S3: Weigh each component obtained in S2 separately, mix them evenly, control the mixing uniformity (the ratio of the standard deviation of the concentration of each component in the mixture to the average value) within 5%, and make the color uniform after mixing. Perform the tempering and maturation process under the action of steam with a pressure of 0.3Mpa, and mature the material to 55°C before granulation. The material enters the ring die of the granulator and is pressed into granular materials with a diameter of 3.5mm under the action of the roller mechanism and pressure. After that, the granular materials enter the cooling and drying tower, and are naturally cooled by air to reach room temperature before entering the granular material finished product screen for screening and grading. After passing the inspection, they are quantitatively packaged to obtain granular materials; Preparation of milk replacer: 20 kg of whey powder, 50 kg of whole milk powder, 10 kg of glucose, 15 kg of soy protein and 5 kg of oil powder are mixed evenly to obtain milk replacer.

[0046] Mix the granular material and milk replacer powder in a mass ratio of 5:1.

[0047] Comparative Example Comparative Example 1 Commercially available sheep farm lamb weaning feed.

[0048] Performance testing and result analysis 1 Performance test 1.1 Experimental design Select 5-day-old Hu sheep lambs with the same or similar parity and birth date, healthy and disease-free. 24 lambs were randomly assigned in each embodiment or comparative example, 4 replicate groups were set up in each group, 6 lambs in each replicate group, and the experimental period was 75 days. Considering the feeding mode and benefits of the sheep farm, the lambs were fed with breast milk continuously. Weaning feed was added 7 days after the lamb was born, and the lamb weaning feed in the embodiments and comparative examples was fed to the lambs, once in the morning and once in the evening, so that the lambs could eat freely. The temperature in the sheep house was kept at 27-28°C when the lambs were 1-60 days old, and they were moved into the fattening house after 60 days of age. After moving into the fattening house, the temperature of the fattening house was kept at 24-25°C. Clean drinking water was added regularly every day, and the weight was weighed at the beginning and end and the total feed intake was recorded.

[0049] 1.2 Measurement indicators Weigh the lambs at the beginning and end of the experiment and record the data. Record the feed intake of each pen during the experiment. Observe and record the diarrhea of ​​the lambs. If any lambs get sick or die during the experiment, record the illness and death of the lambs in detail, record the number of sick and dead lambs, the time of death and the weight, and calculate the illness and mortality rate after the experiment.

[0050] Diarrhea rate (100%) = ∑ (number of diarrhea cases × number of diarrhea days) / (number of test cases × number of test days) × 100% Fever rate (100%) = ∑ (number of fever heads × number of fever days) / (number of test heads × number of test days) × 100% Daily weight gain = (weight at the end of the pen - initial weight of the pen + weight at the end of the dead sheep) / (number of sheep remaining in the pen × total number of experimental days + number of days of dead sheep participating in the experiment) Daily feed intake = (weight of the first feed addition + weight of the end of the pen after the second feed addition + ... + last feed addition - weight of remaining feed) / (number of sheep remaining in the pen * number of experimental days + number of days of dead sheep participating in the experiment) Feed-to-weight ratio = daily feed intake / daily weight gain.

[0051] 1.3 Data Statistics and Analysis The experimental data were statistically analyzed by one-way ANOVA using SPSS 17.0 software, and Duncan's method was used for multiple comparisons of means. The results were expressed as "mean ± standard deviation (Mean ± SD)".

[0052] 2 Experimental results and analysis 2.1 Effect of different starter feeds on lamb growth performance As shown in Tables 1 and 2, the weight of lambs on the 75th day was higher in the comparative example than in the example, and the difference was significant (P < 0.05). The average daily feed intake of the example was higher than that of the comparative example 1, and the feed conversion rate was lower than that of the comparative example, but the difference was not significant (P > 0.05); compared with examples 1-3, the aging process pressure of example 4 was lower, resulting in a longer aging time, and there was a certain loss of feed nutrition. In example 5, the feed particle size was larger, and the lambs were not easy to eat, and the nutrient absorption efficiency after eating was low. In example 6, the proportion of soybean oil was lower, and the fat-soluble nutrients were not well absorbed. In example 7, due to the addition of oligosaccharides, the lambs slightly gained weight. In example 8, due to the less milk replacer, the lambs did not like to eat.

[0053] Table 1 Effects of different lamb weaning feeds on lamb growth performance project Example 1 Comparative Example 1 Initial weight kg / head 4.53±0.70 4.53±0.70 45 days body weight kg / head 14.18±2.26 9.64±2.26 Daily weight gain kg 1.30±0.11 1.08±0.07 Average daily feed intake kg 0.57±0.08 0.49±0.31 Material weight ratio 0.43±0.04 0.51±0.21 Table 2 Effects of different examples of lamb weaning feed on lamb growth performance 2.2 Effect of different starter feeds on lamb disease rate and culling rate As shown in Table 3, the fever rate of lambs in Example 1 from 0 to 45 days was higher than that in the example, while the diarrhea rate was not much different between the two groups. The mortality rate in the example was lower than that in the example 1. One lamb in the example 1 died due to accidental crushing of the ewe, and this data was excluded. Overall, the health of the lambs in the example was better than that in the example.

[0054] Table 3 Effects of different starter feeds on lamb disease rate and culling rate This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A method for preparing feed for weaned lambs, characterized in that: The method comprises the preparation of granular materials and milk replacer powder. The granular materials include premixes and other additives, protein raw materials, mineral raw materials, oils and fats, liquid raw materials, and energy raw materials. The preparation of granular materials comprises the following steps: S1: receiving, inspecting, weighing and distributing raw materials; S2: Mix the premix and other additives evenly, weigh and inspect for later use; The protein raw materials and energy raw materials are crushed, sieved and tested separately for later use; Screen the mineral raw materials for later use; Pre-treat, inspect and set aside grease and liquid raw materials; S3: Weigh the components obtained in S2 respectively, mix them evenly, then grind them into fine powder, granulate them while keeping them moist, cool them, inspect and package them to obtain granules; The preparation of the milk replacer comprises the following steps: mixing milk replacer raw materials uniformly to obtain the milk replacer.

2. The method for preparing feed for weaned lambs according to claim 1, characterized in that: The protein raw material includes the following raw materials in parts by weight: 2-8 parts of whey powder, 0.1-0.2 parts of methionine, and 0.1-0.2 parts of lysine; The mineral raw materials include the following raw materials by weight: 0.3-1 parts of calcium hydrogen phosphate and 0.5-1.5 parts of stone powder; The oil and liquid raw materials include the following raw materials in parts by weight: 0.5-1.0 parts of soybean oil and 1-5 parts of molasses; The energy raw material comprises the following raw materials by weight: 40-50 parts of first-grade corn, 5-15 parts of soybean meal, 2-7 parts of cooked soybeans, 5-15 parts of corn germ meal, 5-10 parts of bran, and 2-8 parts of glucose; The mass proportion of the premix and other additives is 1-2 parts, including the following components in mass percentage: baking soda 2.67-2.69%, yeast culture 6.7-6.8%, corn cob powder 10.039-10.041%, vitamin compound package 1.7-1.8%, stone powder 20-21%, zinc sulfate 1.885-1.887%, ferrous sulfate 1.625-1.627%, manganese sulfate 1.235-1.237%, potassium iodide 0.39-0.40%, copper sulfate 0.26-0.27%, sodium selenite 0.234-0.236%, cobalt chloride 0.195-0.197%, VB1 0.067-0.069%, and the balance is salt and any unavoidable impurities; The milk replacer powder comprises the following raw materials in parts by weight: 15-25 parts of whey powder, 50-60 parts of whole milk powder, 8-12 parts of glucose, 10-30 parts of soy protein and 3-8 parts of oil powder.

3. The method for preparing feed for weaned lambs according to claim 2, characterized in that: The pellet feed includes the following raw materials in parts by weight: 45 parts of first-grade corn, 12 parts of soybean meal, 5 parts of cooked soybean, 15 parts of corn germ meal, 5.0 parts of bran, 3.7 parts of whey powder, 0.15 parts of methionine, 0.15 parts of lysine, 0.5 parts of calcium hydrogen phosphate, 0.5 parts of stone powder, 1 part of soybean oil, 3 parts of molasses, 8 parts of glucose, and 1 part of premix and other additives; The milk replacer powder comprises the following raw materials in parts by weight: 20 parts of whey powder, 50 parts of whole milk powder, 10 parts of glucose, 15 parts of soy protein and 5 parts of oil powder.

4. The method for preparing feed for weaned lambs according to claim 1, characterized in that: The moisturizing granulation and cooling comprises the following preparation steps: S1: Pressurizing the mixed material obtained by fine grinding, introducing steam to perform tempering and maturation, and obtaining a maturated material; S2: Granulate, dry, screen and naturally cool the cooked material to room temperature.

5. The feed for weaned lambs according to claim 4, characterized in that: The pressurizing pressure is 0.3-0.4Mpa, and the aging temperature is 55-60°C.

6. The method for preparing feed for weaned lambs according to claim 4, characterized in that: The primary corn in the energy raw material is crushed to an average particle size of 2-2.5 mm, the average diameter of the fine crushing in S3 is 0.1-2 mm, and the average particle size of the granulation is ≤3.5 mm.

7. The method for preparing feed for weaned lambs according to claim 1, characterized in that: The pretreatment in S2 comprises the following steps: adding 1wt% of emulsifier and 18-20wt% of water to the oil and liquid, and mixing and emulsifying at a rotation speed of 2500-2700r / min for 3.5-4 minutes.

8. The method for preparing feed for weaned lambs according to claim 2, characterized in that: The oil and liquid also include 0.5-1.5 parts by weight of oligosaccharides, and the mass ratio of soybean oil to premix and other additives in the oil and liquid is (1-1.2):

1.

9. A feed for weaned lambs, comprising pellets and milk replacer powder, characterized in that: The feed is prepared by the method for preparing feed for weaned lambs according to any one of claims 1 to 7.

10. A method for feeding weaned lambs according to claim 9, characterized in that: Feed the granular feed and milk replacer powder in a mass ratio of (1.5-4):1, once in the morning and once in the evening. Keep the temperature of the sheep house at 27-28℃ when the lambs are 1-60 days old. After moving into the fattening house, keep the temperature of the fattening house at 24-25℃.

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