Feed for relieving lamb transportation stress and preparation method thereof

Abstract

The present invention relates to a lamb transportation stress relieving feed and a preparation method thereof, and relates to the technical field of breeding feed preparation, the preparation raw materials comprise the following components by mass: 18-22% of a high quality protein raw material, 65-70% of an energy supply material, 1-1.5% of a mineral substance and trace element mixture, 0.2-0.3% of an antioxidant, and the balance of water and other auxiliary substances; the high-quality protein raw materials comprise fish meal and soybean meal; the energy supply material comprises corn starch and wheat bran; the preparation raw materials also comprise a vitamin compound. The preparation method comprises the following steps: premixing energy supply materials, adding a high-quality protein raw material, sequentially adding a vitamin compound, a mineral substance and trace element mixture, an antioxidant and other auxiliary substances, supplementing the balance to 100% by using water, controlling the temperature, and uniformly stirring to obtain a mixture; and pressing the mixture into particles, cooling, and carrying out vacuum packaging to obtain the feed for relieving lamb transportation stress. The feed prepared by the invention has a good anti-stress effect.

Description

Technical Field

[0001] The present application relates to the technical field of breeding feed preparation, and in particular to a feed for alleviating lamb transportation stress and a preparation method thereof. Background Art

[0002] In modern animal husbandry, the transportation of lambs is an indispensable link in the breeding industry chain. With the continuous expansion of breeding scale and the growth of market demand, lambs need to be transported to different regions for fattening, sales or further breeding. However, the transportation process is often accompanied by various complex environmental factors, such as crowding, noise, temperature changes, etc., which can easily cause lambs to have transportation stress reactions.

[0003] The impact of transport stress on lambs cannot be underestimated. It will reduce the immunity of lambs and increase the chance of illness. For example, the incidence of respiratory diseases and digestive tract diseases will increase significantly. At the same time, stress will also affect the growth performance of lambs, leading to slow weight gain and reduced feed conversion rate, which will bring direct economic losses to farmers. Long-term stress may even affect the reproductive performance of lambs and pose a threat to the sustainable development of the entire breeding industry. Therefore, it is necessary to develop a feed that can effectively alleviate the transportation stress of lambs, provide lambs with necessary nutritional support and anti-stress ingredients through scientific and reasonable feed formulas, and reduce stress responses during transportation. Summary of the invention

[0004] In order to improve the anti-stress effect of feed, the present application provides a feed for alleviating lamb transportation stress and a preparation method thereof.

[0005] The present application provides a feed for relieving lamb transportation stress and a preparation method thereof, which adopts the following technical solutions: In the first aspect, the present application provides a feed for relieving lamb transportation stress, which adopts the following technical solutions: A feed for alleviating lamb transportation stress, wherein the raw materials for preparing the feed include the following components in parts by weight: High-quality protein raw materials 18-22% Energy supplement 65-70% Mineral and trace element mixture 1-1.5% Antioxidants 0.2-0.3% The balance is water and other auxiliary substances; The high-quality protein raw materials include fish meal and soybean meal; the energy supplement includes corn starch and wheat bran; and the preparation raw materials also include vitamin complex.

[0006] Fish meal and soybean meal in high-quality protein raw materials can provide lambs with essential amino acids needed for growth and stress response, and maintain their physiological functions; corn starch and wheat bran in energy supplements can quickly replenish the energy consumed during transportation; minerals and trace element mixtures regulate the body's metabolism and maintain a stable internal environment; antioxidants can remove free radicals produced by transportation stress and reduce oxidative damage; vitamin complexes participate in multiple physiological processes and enhance immunity; various ingredients work synergistically to effectively alleviate lamb transportation stress from multiple aspects such as nutrient supply, metabolic regulation, anti-oxidation and immune enhancement, and ensure their health and growth during transportation.

[0007] Preferably, the vitamin complex includes retinol acetate, cholecalciferol D 3 and DL-α-tocopheryl acetate.

[0008] Retinyl acetate can be converted into vitamin A after entering the lamb's body, which can maintain the integrity of the lamb's epithelial tissue, enhance mucosal immunity, and effectively prevent the occurrence of respiratory and digestive tract infections under transportation stress; Cholecalciferol D 3 As a form of vitamin D, it can promote the absorption and metabolism of calcium and phosphorus, maintain bone health, allow lambs to maintain a good body condition during transportation, and enhance the bone's tolerance to stress such as bumps; DL-α-tocopherol acetate is a stable form of vitamin E with strong antioxidant capacity, which can reduce the damage to cells caused by free radicals produced by transportation stress, while regulating immune cell function and enhancing the immunity of lambs. The three work synergistically to alleviate lamb transportation stress from multiple dimensions and ensure their health.

[0009] Preferably, the amount of retinol acetate added is 0.0003-0.0005% of the total mass, and the cholecalciferol D 3 The addition amount of is 0.000005-0.000007% of the total mass, and the addition amount of DL-α-tocopherol acetate is 0.015-0.025% of the total mass.

[0010] By regulating the amount of each component added in the vitamin complex, the defense of the lambs can be effectively improved, allowing the lambs to maintain normal growth and metabolism, and through antioxidant and immunomodulatory effects, the free radicals produced by transportation stress can be removed, oxidative stress damage can be reduced, the health of the lambs can be maintained, and the growth and development during transportation can be guaranteed not to be overly affected.

[0011] Preferably, the mixture of minerals and trace elements includes zinc, iron, magnesium, copper, phosphorus and calcium.

[0012] Zinc participates in the synthesis and activation of multiple enzymes in the lamb, which can maintain its immune function, promote wound healing and normal cell metabolism, and help lambs maintain good physiological functions under transportation stress. Iron is an important component of hemoglobin and is responsible for the transportation of oxygen. Adequate iron can prevent lambs from iron deficiency anemia caused by stress during transportation and ensure that all tissues in the body get sufficient oxygen supply. Magnesium participates in many biochemical reactions in the body and can regulate neuromuscular excitability, allowing lambs to maintain a relatively stable physiological state in the tense environment of transportation and avoid problems such as muscle spasms caused by excessive stress. Copper participates in the regulation of the activity of multiple enzymes, promotes bone development, hair health and immune function, and helps lambs maintain normal growth and immune defense during transportation stress. Phosphorus and calcium are the main components of bones and teeth, maintaining bone strength and hardness, ensuring the bone health of lambs during transportation bumps, and helping to maintain normal nerve conduction, muscle contraction and acid-base balance, ensuring the health of lambs under transportation stress.

[0013] Preferably, the zinc element is added in the form of zinc methionine, the iron element is added in the form of iron glycine, the magnesium element is added in the form of magnesium oxide, the copper element is added in the form of copper lysine, and the calcium phosphate is added in the form of calcium hydrogen phosphate.

[0014] The amino acid chelate structure of methionine zinc is stable and can utilize the absorption pathway of amino acids to improve the bioavailability of zinc, effectively participate in the synthesis and activation of various enzymes in lambs, strengthen immune function and cell metabolism, and help lambs maintain good physiological functions under transportation stress; glycine iron utilizes the chelation characteristics of amino acids and iron to effectively avoid the antagonistic effect of iron with other substances in the gastrointestinal tract, making iron easier to absorb, providing sufficient guarantee for oxygen transportation of lambs during transportation, and preventing iron deficiency anemia; magnesium oxide can slowly release magnesium ions in the alkaline environment of the gastrointestinal tract, maintain a stable supply of magnesium, participate in many biochemical reactions, regulate neuromuscular excitability, and allow lambs to maintain a stable physiological state under the stressful environment of transportation; lysine copper improves the absorption efficiency of copper in the form of amino acids combined with copper, regulates the activity of various enzymes during transportation stress, and maintains the bone development, hair health and immune function of lambs; while providing lambs with sufficient phosphorus and calcium to maintain bone strength and hardness, it also ensures normal nerve conduction, muscle contraction and acid-base balance, and comprehensively guarantees the health of lambs under transportation stress.

[0015] Preferably, the antioxidants include rosemary extract, green tea extract and β-carotene.

[0016] Rosemary extract is rich in antioxidant ingredients such as carnosic acid and rosmarinic acid, which can effectively capture a large number of free radicals produced in the lamb's body under transportation stress, terminate the oxidation chain reaction, protect cells from damage, and synergize with DL-α-tocopherol acetate to enhance the lamb's immunity and stress resistance under transportation stress; tea polyphenols, the main component of green tea extract, have strong antioxidant capacity, which can reduce the damage of oxidative stress to the lamb's body by chelating metal ions and inhibiting oxidase activity; β-carotene can not only directly eliminate free radicals, but also be converted into vitamin A in the body, maintaining the health of lamb epithelial tissue and enhancing its immunity; these three antioxidants work synergistically to comprehensively eliminate excess free radicals caused by transportation stress from multiple aspects, reduce oxidative damage, and regulate immune function, thereby effectively alleviating lamb transportation stress.

[0017] Preferably, the raw materials for preparing the feed for alleviating lamb transportation stress also include functional polysaccharides and probiotics.

[0018] Functional polysaccharides can not only regulate the immune function of lambs, activate immune cells, and enhance the body's resistance to pathogens, but also promote the growth of beneficial bacteria, inhibit harmful bacteria, and maintain the balance of intestinal microecology; probiotics can directly colonize in the intestine to form a biological barrier to prevent the invasion of harmful bacteria, while producing beneficial metabolites such as short-chain fatty acids, regulating intestinal pH, and promoting intestinal peristalsis; the two complement each other, and functional polysaccharides provide a good living environment for probiotics, helping them to play a better role. Probiotics further strengthen intestinal health on the basis of regulating intestinal flora by functional polysaccharides. Under the joint action, they can effectively alleviate the adverse effects of transportation stress on the intestinal tract and immune system of lambs and ensure the health of lambs during transportation.

[0019] Preferably, the functional polysaccharide comprises yeast cell wall polysaccharide, astragalus polysaccharide and chitosan.

[0020] Yeast cell wall polysaccharides contain β-glucan and manno-oligosaccharide. The former can activate immune cells and enhance the immunity of lambs, while the latter can promote the growth of beneficial bacteria, inhibit harmful bacteria, and stabilize the intestinal flora. Astragalus polysaccharide can not only enhance the body's immune function, but also has antioxidant capacity, which can reduce the oxidative damage caused by transportation stress. Chitosan can regulate the intestinal microbial community, promote the growth of beneficial bacteria, inhibit harmful bacteria, and at the same time enhance the intestinal mucosal barrier function, and also has antioxidant and immunomodulatory capabilities. The three polysaccharides work synergistically to fully regulate the immune function of lambs, maintain the balance of intestinal microecology, reduce oxidative stress, effectively alleviate the transportation stress of lambs, and ensure their health and growth during transportation.

[0021] Preferably, the probiotics include Bacillus subtilis, Clostridium butyricum and Lactobacillus plantarum.

[0022] Bacillus subtilis quickly consumes free oxygen in the intestine, creating an anaerobic environment that is conducive to the growth and reproduction of other beneficial anaerobic bacteria. It also produces a variety of digestive enzymes to improve the lambs' digestion and absorption efficiency of feed nutrients and enhance their physical fitness to cope with stress. Clostridium butyricum can provide energy for intestinal epithelial cells by producing butyric acid, repair and strengthen the intestinal mucosal barrier, enhance the intestine's resistance to pathogens, and reduce intestinal damage caused by transportation stress. Lactobacillus plantarum can quickly colonize in the intestine, regulate intestinal pH, inhibit the reproduction of harmful bacteria, stimulate intestinal immune cells, and enhance local intestinal immune function. The three probiotics work synergistically to regulate the intestinal microecology in all directions, strengthen the intestinal barrier and immune function, effectively alleviate the stress response of lambs during transportation, and ensure their intestinal health and overall physiological function.

[0023] In a second aspect, the present application provides a method for preparing a feed for alleviating lamb transportation stress, using the following technical solution: A method for preparing a feed for alleviating lamb transportation stress comprises the following steps: The energy supplement is premixed, high-quality protein raw materials are added, and vitamin complexes, minerals and trace elements mixtures, antioxidants and other auxiliary substances are added in sequence, the balance is supplemented with water to 100%, the temperature is controlled and stirred evenly to obtain a mixture; the mixture is pressed into granules, cooled, and vacuum-packed to obtain feed for alleviating lamb transportation stress.

[0024] The feed prepared according to the above steps has stable quality, ensures that the lambs have a balanced nutritional intake, enhances the lambs' immunity, and effectively relieves the stress caused by lamb transportation.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. Fish meal and soybean meal in high-quality protein raw materials can provide lambs with essential amino acids needed for growth and stress response, and maintain their physiological functions; corn starch and wheat bran in energy supplements can quickly replenish the energy consumed during transportation; minerals and trace element mixtures regulate the body's metabolism and maintain a stable internal environment; antioxidants can remove free radicals produced by transportation stress and reduce oxidative damage; vitamin complexes participate in multiple physiological processes and enhance immunity; various ingredients work synergistically to effectively alleviate lamb transportation stress from multiple aspects such as nutrient supply, metabolic regulation, anti-oxidation and immune enhancement, and ensure their health and growth during transportation.

[0026] 2. Rosemary extract is rich in antioxidant ingredients such as carnosic acid and rosmarinic acid, which can effectively capture a large number of free radicals produced in the lamb's body under transportation stress, terminate the oxidation chain reaction, protect cells from damage, and synergize with DL-α-tocopherol acetate to enhance the lamb's immunity and stress resistance under transportation stress; the main component of green tea extract, tea polyphenols, has strong antioxidant capacity, which can reduce the damage of oxidative stress to the lamb's body by chelating metal ions and inhibiting oxidase activity; β-carotene can not only directly remove free radicals, but also be converted into vitamin A in the body, maintaining the health of lamb epithelial tissue and enhancing its immunity; these three antioxidants work synergistically to comprehensively remove excess free radicals caused by transportation stress from multiple aspects, reduce oxidative damage, and regulate immune function, thereby effectively alleviating lamb transportation stress.

[0027] 3. Functional polysaccharides can not only regulate the immune function of lambs, activate immune cells, and enhance the body's resistance to pathogens, but also promote the growth of beneficial bacteria, inhibit harmful bacteria, and maintain the balance of intestinal microecology; probiotics can directly colonize in the intestines to form a biological barrier to prevent the invasion of harmful bacteria, while producing beneficial metabolites such as short-chain fatty acids, regulating intestinal pH, and promoting intestinal peristalsis; the two complement each other, and functional polysaccharides provide a good living environment for probiotics, helping them to play a better role. Probiotics further strengthen intestinal health on the basis of regulating intestinal flora by functional polysaccharides. Under the joint action, they can effectively alleviate the adverse effects of transportation stress on the intestinal tract and immune system of lambs, and ensure the health of lambs during transportation. DETAILED DESCRIPTION

[0028] The present application discloses a feed for relieving lamb transportation stress and a preparation method thereof. The raw materials used in the present application can be obtained from commercially available raw materials unless otherwise specified. The present application is further described in detail in conjunction with the embodiments below: Ingredients: Retinyl acetate (CAS No.: 127-47-9), Cholecalciferol D 3(CAS No.: 67-97-0), DL-α-tocopheryl acetate (CAS No.: 7695-91-2), green tea extract (CAS No.: 84650-60-2), rosemary extract (CAS No.: 84604-14-8), zinc methionine (CAS No.: 56329-42-1), iron glycinate (CAS No.: 98063-75-3), magnesium oxide (CAS No.: 1309-48-4), copper lysine (CAS No.: 89030-95-5) , calcium hydrogen phosphate (CAS No.: 7757-93-9), rosemary extract (CAS No.: 84604-14-8), green tea extract (CAS No.: 84650-60-2), β-carotene (CAS No.: 7235-40-7), yeast cell wall polysaccharide was purchased from Wuhan Nengren Pharmaceutical Chemical Co., Ltd., astragalus polysaccharide (CAS No.: 89250-26-0), chitosan (CAS No.: 9012-76-4) ethoxyquinoline (CAS No.: 91-53-2).

[0029] Example 1 The soybean meal and fish meal were crushed separately and passed through a 20-mesh sieve to remove impurities to obtain pretreated fish meal and pretreated soybean meal; 70 kg of energy supplement was premixed for 10 minutes, the energy supplement consisted of corn starch and wheat bran with a mass ratio of 3:1, 18 kg of high-quality protein raw material was added, the high-quality protein raw material consisted of pretreated fish meal and pretreated soybean meal with a mass ratio of 1:0.6, vitamin complex, 1 kg of mineral and trace element mixture and 0.2 kg of antioxidant were added in sequence, the vitamin complex consisted of 0.3 g of retinol acetate, 5 mg of cholecalciferol D 3 and 15g of DL-α-tocopherol acetate, the mass ratio of methionine zinc, glycine iron, magnesium oxide, lysine copper and calcium hydrogen phosphate in the mineral and trace element mixture is 1:0.8:12:0.3:50, the mass ratio of rosemary extract, green tea extract and beta-carotene in the antioxidant is 0.8:1:0.2, deionized water is used to make up the balance to 100kg, the temperature is controlled below 40°C, and the mixture is stirred at a speed of 30rpm until the coefficient of variation (CV) of mixing uniformity is ≤5% to obtain a mixture; the mixture is pressed into 3mm particles by a 70°C ring die pelletizer, cooled to below 30°C, and vacuum packed to obtain a feed for alleviating lamb transportation stress.

[0030] Example 2 The soybean meal and fish meal were crushed separately and passed through a 20-mesh sieve to remove impurities, thereby obtaining pretreated fish meal and pretreated soybean meal; 65 kg of energy supplement was premixed for 10 minutes, the energy supplement consisted of corn starch and wheat bran with a mass ratio of 3:1, 22 kg of high-quality protein raw material was added, the high-quality protein raw material consisted of pretreated fish meal and pretreated soybean meal with a mass ratio of 1:0.6, vitamin complex, 1.5 kg of mineral and trace element mixture and 0.3 kg of antioxidant were added in sequence, the vitamin complex consisted of 0.5 g of retinol acetate, 7 mg of cholecalciferol D 3 and 25g of DL-α-tocopherol acetate, the mass ratio of methionine zinc, glycine iron, magnesium oxide, lysine copper and calcium hydrogen phosphate in the mineral and trace element mixture is 1:0.8:12:0.3:50, the mass ratio of rosemary extract, green tea extract and beta-carotene in the antioxidant is 0.8:1:0.2, deionized water is used to make up the balance to 100kg, the temperature is controlled below 40°C, and the mixture is stirred at a speed of 30rpm until the coefficient of variation (CV) of mixing uniformity is ≤5% to obtain a mixture; the mixture is pressed into 3mm particles by a 70°C ring die pelletizer, cooled to below 30°C, and vacuum packed to obtain a feed for alleviating lamb transportation stress.

[0031] Example 3 The soybean meal and fish meal were crushed separately and passed through a 20-mesh sieve to remove impurities, thereby obtaining pretreated fish meal and pretreated soybean meal; 67.5 kg of energy supplement was premixed for 10 minutes, the energy supplement consisted of corn starch and wheat bran in a mass ratio of 3:1, 20 kg of high-quality protein raw material was added, the high-quality protein raw material consisted of pretreated fish meal and pretreated soybean meal in a mass ratio of 1:0.6, vitamin complex, 1.25 kg of mineral and trace element mixture and 0.25 kg of antioxidant were added in sequence, the vitamin complex consisted of 0.4 g of retinol acetate, 6 mg of cholecalciferol D 3 and 20g of DL-α-tocopherol acetate, the mass ratio of methionine zinc, glycine iron, magnesium oxide, lysine copper and calcium hydrogen phosphate in the mineral and trace element mixture is 1:0.8:12:0.3:50, the mass ratio of rosemary extract, green tea extract and beta-carotene in the antioxidant is 0.8:1:0.2, deionized water is used to make up the balance to 100kg, the temperature is controlled below 40°C, and the mixture is stirred at a speed of 30rpm until the coefficient of variation (CV) of mixing uniformity is ≤5% to obtain a mixture; the mixture is pressed into 3mm particles by a 70°C ring die pelletizer, cooled to below 30°C, and vacuum packed to obtain a feed for alleviating lamb transportation stress.

[0032] Example 4 Example 4 is based on Example 3. The only difference between Example 4 and Example 3 is that in Example 4, the amount of retinol acetate added to the vitamin complex is 0.4 g, and cholecalciferol D 3 The added amount of is 6 mg, and the added amount of DL-α-tocopherol acetate is 5 g.

[0033] Example 5 Example 5 is based on Example 3. The only difference between Example 5 and Example 3 is that in Example 5, the amount of retinol acetate added to the vitamin complex is 0.4 g, and cholecalciferol D 3 The added amount of is 6 mg, and the added amount of DL-α-tocopherol acetate is 35 g.

[0034] Example 6 Example 6 is based on Example 3. The only difference between Example 6 and Example 3 is that in Example 6, zinc methionine is replaced by an equimolar amount of zinc sulfate.

[0035] Example 7 Example 7 is based on Example 3, and the only difference between Example 7 and Example 3 is that in Example 7, iron glycinate is replaced by an equal molar amount of ferrous sulfate.

[0036] Example 8 Example 8 is based on Example 3, and the only difference between Example 8 and Example 3 is that in Example 8, copper lysine is replaced by an equimolar amount of copper sulfate.

[0037] Example 9 Example 9 is based on Example 3. The only difference between Example 9 and Example 3 is that in Example 9, no rosemary extract is added to the antioxidant.

[0038] Example 10 Example 10 is based on Example 3. The only difference between Example 10 and Example 3 is that in Example 10, green tea extract and β-carotene are not added to the antioxidant.

[0039] Embodiment 11 Example 11 is based on Example 3. The only difference between Example 11 and Example 3 is that when preparing feed for alleviating lamb transportation stress in Example 11, 0.8 kg of functional polysaccharides and 1 kg of probiotics are added to every 100 kg of feed, and the functional polysaccharide consists of yeast cell wall polysaccharides, astragalus polysaccharides and chitosan in a mass ratio of 1:0.6:1, and the probiotics consist of Bacillus subtilis, Clostridium butyricum and Lactobacillus plantarum in a mass ratio of 1:0.8:1.5.

[0040] Example 12 Example 12 is based on Example 11, and the only difference between Example 12 and Example 11 is that the functional polysaccharide in Example 12 consists of yeast cell wall polysaccharide and astragalus polysaccharide in a mass ratio of 1:0.6.

[0041] Embodiment 13 Example 13 is based on Example 11, and the only difference between Example 13 and Example 11 is that the functional polysaccharide in Example 13 only contains yeast cell wall polysaccharide.

[0042] Embodiment 14 Example 14 is based on Example 11. The only difference between Example 14 and Example 11 is that the probiotics in Example 14 are composed of Bacillus subtilis and Clostridium butyricum in a mass ratio of 1:0.8. Embodiment 15 Example 15 is based on Example 11, and the only difference between Example 15 and Example 11 is that the probiotics in Example 15 only include Lactobacillus plantarum.

[0043] Comparative Example 1 Comparative Example 1 is based on Example 3, and the only difference between Comparative Example 1 and Example 3 is that in Comparative Example 1, the antioxidant is replaced by ethoxyquinoline.

[0044] Performance testing 160 healthy lambs of similar age and weight from the same batch weighing 30 kg were selected and randomly divided into 16 groups, with 10 lambs in each group. The lambs were fed and watered freely, and were fed and immunized according to conventional feeding procedures and immunization procedures. Two days before transportation, the feed prepared in the embodiment and the comparative example was fed, simulating 8 hours of long-distance transportation. During the transportation process, the compartment temperature was 25-30°C, the humidity was 60-70%, and the density was 0.8-1.0m 2 / Earl, fasting during the entire transportation process to avoid motion sickness; warm water containing glucose (5%) and electrolyte multivitamins was provided 6 hours after transportation, and gradually fed until the fourth day to restore normal levels; weighed before transportation, 7 days after transportation, and 14 days after transportation, and the weight gain rate 7 days after transportation and the weight gain rate 14 days after transportation were calculated, and the average value was taken after removing the maximum and minimum values, and the results are recorded in Table 1.

[0045] Table 1 Test results of the anti-stress performance of feeds that relieve lamb transportation stress It can be seen from Table 1 that the weight gain rate of Examples 1-3 7 days after transportation is greater than 4.5%, and the weight gain rate 14 days after transportation is greater than 9.8%, which shows that the feed for alleviating lamb transportation stress prepared in the present application has good anti-stress performance.

[0046] As can be seen from Table 1, the only difference between Examples 4 and 5 and Example 3 is that the amount of DL-α-tocopherol acetate is reduced in Example 4, and the amount of DL-α-tocopherol acetate is increased in Example 5. Compared with Example 3, the anti-stress effect of Examples 4 and 5 is reduced; this is because too much or too little DL-α-tocopherol acetate will affect the antioxidant synergistic effect, and after exceeding the optimal dosage range, it may cause competitive inhibition of the absorption of certain components, thereby reducing the anti-stress effect of the feed.

[0047] As can be seen from Table 1, the only difference between Examples 6, 7, and 8 and Example 3 is that in Example 6, zinc methionine is replaced by an equimolar amount of zinc sulfate, in Example 7, iron glycinate is replaced by an equimolar amount of ferrous sulfate, and in Example 8, copper lysine is replaced by an equimolar amount of copper sulfate. Compared with Example 3, the anti-stress effects of Examples 6, 7, and 8 are reduced; this is because replacing an organic form of an element with an inorganic form of an element will affect the bioavailability and antioxidant effect of the element, thereby reducing the performance.

[0048] As can be seen from Table 1, the only difference between Examples 9 and 10 and Example 3 is that in Example 9, rosemary extract is not added to the antioxidant, and in Example 10, green tea extract and β-carotene are not added to the antioxidant. Compared with Example 3, the anti-stress effects of Examples 9 and 10 are reduced; this is because reducing the components of the antioxidant will affect the synergistic effect between the components, thereby reducing the anti-stress effect.

[0049] As can be seen from Table 1, the only difference between Example 11 and Example 3 is that functional polysaccharides and probiotics are added to Example 11, and the two complement each other synergistically to effectively improve the anti-stress effect; the only difference between Examples 12-15 and Example 11 is that Example 12 does not add chitosan, Example 13 does not add chitosan and astragalus polysaccharide, Example 14 does not add plant lactobacillus, and Example 15 does not add Bacillus subtilis and Clostridium butyricum. Compared with Example 11, Examples 12-15 have reduced anti-stress performance; this is because the synergistic effect between the components decreases, the improvement of the anti-stress effect of the feed is reduced, and thus the performance is reduced compared with Example 11.

[0050] As can be seen from Table 1, the only difference between Comparative Example 1 and Example 3 is that the antioxidant is replaced by ethoxyquin in Comparative Example 1. Compared with Example 3, the anti-stress effect of Comparative Example 1 is greatly reduced; this is because the antioxidant is replaced by ethoxyquin, which can protect the activity of the components in the feed, but the synergistic effect between the components is weakened, the anti-oxidative stress effect is reduced, and thus the performance of the feed is reduced.

[0051] This specific embodiment is only an explanation of the present application, and it is not a limitation of the present application. Through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of ​​the present application. The technical scope of the present application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A feed for alleviating lamb transportation stress, characterized in that: The raw materials for preparation include the following components in parts by weight: High-quality protein raw materials 18-22% Energy supplement 65-70% Mineral and trace element mixture 1-1.5% Antioxidant 0.2-0.3% The balance is water and other auxiliary substances; The high-quality protein raw materials include fish meal and soybean meal; the energy supplement includes corn starch and wheat bran; and the preparation raw materials also include vitamin complex.

2. A feed for alleviating lamb transportation stress according to claim 1, characterized in that: The vitamin complex includes retinyl acetate, cholecalciferol D3 and DL-α-tocopherol acetate.

3. A feed for alleviating lamb transportation stress according to claim 2, characterized in that: The added amount of the retinol acetate accounts for 0.0003-0.0005% of the total mass, the added amount of the cholecalciferol D3 accounts for 0.000005-0.000007% of the total mass, and the added amount of the DL-α-tocopherol acetate accounts for 0.015-0.025% of the total mass.

4. The feed for alleviating lamb transportation stress according to claim 1, characterized in that: The mineral and trace element mixture comprises zinc, iron, magnesium, copper, phosphorus and calcium.

5. The feed for alleviating lamb transportation stress according to claim 4, characterized in that: The zinc element is added in the form of zinc methionine, the iron element is added in the form of iron glycine, the magnesium element is added in the form of magnesium oxide, the copper element is added in the form of copper lysine, and the calcium phosphate is added in the form of calcium hydrogen phosphate.

6. The feed for alleviating lamb transportation stress according to claim 1, characterized in that: The antioxidants include rosemary extract, green tea extract and beta-carotene.

7. The feed for alleviating lamb transportation stress according to claim 1, characterized in that: The raw materials for preparing the feed for alleviating lamb transportation stress also include functional polysaccharides and probiotics.

8. The feed for alleviating lamb transportation stress according to claim 7, characterized in that: The functional polysaccharides include yeast cell wall polysaccharides, astragalus polysaccharides and chitosan.

9. The feed for alleviating lamb transportation stress according to claim 8, characterized in that: The probiotics include Bacillus subtilis, Clostridium butyricum and Lactobacillus plantarum.

10. A method for preparing a feed for alleviating lamb transportation stress as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: The energy supplement is premixed, high-quality protein raw materials are added, and vitamin complexes, minerals and trace element mixtures, antioxidants and other auxiliary substances are added in sequence, the balance is supplemented with water to 100%, the temperature is controlled and stirred evenly to obtain a mixture; the mixture is pressed into granules, cooled, and vacuum-packed to obtain feed for alleviating lamb transportation stress.

Images