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CN-121970842-A - Yeast selenium and allicin composite-based anti-heat stress feed and preparation method thereof

CN121970842ACN 121970842 ACN121970842 ACN 121970842ACN-121970842-A

Abstract

The invention relates to the technical field of livestock breeding, in particular to a heat stress resistant feed based on yeast selenium and allicin compound and a preparation method thereof, wherein the heat stress resistant feed based on yeast selenium and allicin compound comprises, by weight, 1-5 parts of yeast selenium, 2-8 parts of allicin, 10-30 parts of dandelion, 5-15 parts of rhizoma atractylodis, 20-40 parts of wheat bran, 5-10 parts of glucose, 10-20 parts of dextrin, 1-3 parts of compound vitamin premix and 1-3 parts of compound mineral premix. The preparation method comprises the steps of mixing yeast selenium, wheat bran and glucose, inoculating composite probiotics for solid-state fermentation, drying a fermentation product to obtain activated yeast selenium, mixing allicin and the activated yeast selenium, adding dextrin and a protective agent, and microencapsulating and embedding. The invention combines the yeast selenium with high bioavailability and natural antibacterial garlicin by a microencapsulation technology to synergistically enhance the antioxidant, immunity and anti-inflammatory capabilities of broiler chickens, thereby efficiently relieving heat stress.

Inventors

  • YUAN LIJUAN
  • ZHANG DAWEN
  • YE MENGJUN
  • LIAO QIEGEN
  • XIANG JIANJUN
  • ZHANG LI
  • QIU SUYAN
  • Ai Qiushuang
  • DONG YIFAN

Assignees

  • 江西省农业科学院农产品质量安全与标准研究所(江西省绿色农业研究中心)

Dates

Publication Date
20260505
Application Date
20260125

Claims (10)

  1. 1. The heat stress resistant feed based on the combination of the yeast selenium and the garlicin is characterized by comprising, by weight, 1-5 parts of the yeast selenium, 2-8 parts of the garlicin, 10-30 parts of dandelion, 5-15 parts of rhizoma atractylodis, 20-40 parts of wheat bran, 5-10 parts of glucose, 10-20 parts of dextrin, 1-3 parts of a compound vitamin premix and 1-3 parts of a compound mineral premix.
  2. 2. The heat stress resistant feed based on the combination of selenium yeast and garlicin according to claim 1 is composed of 1 part by weight of selenium yeast, 2 parts by weight of garlicin, 10 parts by weight of dandelion, 5 parts by weight of rhizoma atractylodis, 20 parts by weight of wheat bran, 5 parts by weight of glucose, 10 parts by weight of dextrin, 1 part by weight of vitamin premix compound and 1 part by weight of mineral premix compound.
  3. 3. The heat stress resistant feed based on the combination of selenium yeast and garlicin according to claim 1 comprises 3 parts by weight of selenium yeast, 5 parts by weight of garlicin, 20 parts by weight of dandelion, 10 parts by weight of rhizoma atractylodis, 30 parts by weight of wheat bran, 7 parts by weight of glucose, 15 parts by weight of dextrin, 2 parts by weight of vitamin premix compound and 2 parts by weight of mineral premix compound.
  4. 4. The heat stress resistant feed based on the combination of selenium yeast and garlicin according to claim 1 comprises, by weight, 5 parts of selenium yeast, 8 parts of garlicin, 30 parts of dandelion, 15 parts of rhizoma atractylodis, 40 parts of wheat bran, 10 parts of glucose, 20 parts of dextrin, 3 parts of vitamin premix compound and 3 parts of mineral premix compound.
  5. 5. A method for preparing a heat stress resistant feed based on the combination of yeast selenium and allicin, based on the weight parts of the heat stress resistant feed based on the combination of yeast selenium and allicin as set forth in any one of claims 1to 4, comprising the steps of: S1, treating yeast selenium, namely mixing the yeast selenium with wheat bran and glucose, inoculating compound probiotics for solid state fermentation to obtain a fermentation product, and drying to obtain activated yeast selenium; s2, garlicin treatment, namely mixing garlicin with activated yeast selenium according to the mass ratio of 1:5-1:10, adding dextrin and a protective agent for microencapsulation and embedding to obtain a yeast selenium-garlicin compound; s3, preparing an extract, namely mixing and crushing dried dandelion whole herb and rhizoma atractylodis rootstock according to the mass ratio of 2:1-4:1, sieving with a 40-60 mesh sieve, adding compound enzyme for enzymolysis treatment, wherein the compound enzyme comprises cellulase and pectase, performing ultrasonic auxiliary extraction after enzymolysis, centrifuging to obtain supernatant, concentrating the supernatant, and performing spray drying to obtain dandelion-rhizoma atractylodis compound extract powder; s4, preparing a feed, namely mixing and granulating a yeast selenium-allicin compound, dandelion-rhizoma atractylodis compound extract powder, a basic feed raw material, a compound vitamin premix and a compound mineral premix to obtain the anti-heat stress feed.
  6. 6. The preparation method of the anti-heat stress feed based on the combination of selenium yeast and allicin according to claim 5, wherein in S1, the combined probiotics comprise lactobacillus and saccharomyces cerevisiae, the inoculation amount is 5-10%, the fermentation temperature is 32 ℃, and the fermentation time is 36 hours.
  7. 7. The preparation method of the heat stress resistant feed based on the combination of selenium yeast and garlicin according to claim 6, wherein in S2, sodium alginate and chitosan are used as protective agents, and the microencapsulation embedding is treated by a spray condensation method.
  8. 8. The preparation method of the anti-heat stress feed based on the combination of the selenium yeast and the garlicin according to claim 7, wherein in the S3, the addition amount of the compound enzyme is 0.5-1.5% of the mass of the raw materials, the enzymolysis temperature is 45-55 ℃, the enzymolysis time is 1-2 hours, and the pH is 4.5-5.5.
  9. 9. The preparation method of the anti-heat stress feed based on the combination of the selenium yeast and the garlicin, which is disclosed in claim 8, is characterized in that in S3, the condition of ultrasonic assisted extraction is that the power is 300-500W, the time is 20-40 minutes, and the extraction solvent is 50% -70% of water or ethanol water solution by volume fraction.
  10. 10. The preparation method of the anti-heat stress feed based on the yeast selenium and allicin composite according to claim 9, wherein in the S4, the basic feed raw materials comprise corn, soybean meal, fish meal and calcium hydrophosphate, the addition amount of dandelion-rhizoma atractylodis composite extract powder is 0.5% -1.5%, and the addition amount of the yeast selenium-allicin composite is 0.1% -0.3%.

Description

Yeast selenium and allicin composite-based anti-heat stress feed and preparation method thereof Technical Field The invention relates to the technical field of livestock breeding, in particular to a heat stress resistant feed based on the combination of selenium yeast and allicin and a preparation method thereof. Background Different from the fast large white feather broilers with fast growth speed and short raising period, local high-quality broilers (such as Taihe black-bone chickens, chongren black-bone chickens, water-repairing black-bone chickens and the like) have the unique physiological and genetic characteristics of long growth period, high metabolic heat production, plump feather quilt, skin pigmentation and the like, so that the local high-quality broilers are more sensitive to heat stress and are more susceptible to environmental temperature in an intensive cultivation scene. When the ambient temperature exceeds 28 ℃, typical heat stress reaction occurs to local high-quality broilers, wherein on one hand, heat stress causes the reduction of feed intake and the reduction of digestive enzyme activity, thereby causing the reduction of growth speed and the increase of feed conversion ratio, and directly affecting the economic benefit of cultivation, and on the other hand, heat stress causes the organisms to generate a large amount of active oxygen free radicals, breaks oxidation-antioxidation balance, causes the accumulation of oxidation injury products such as Malondialdehyde (MDA) and the like, and causes the reduction of antioxidation enzyme activities such as superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and the like. Meanwhile, heat stress can inhibit immune system functions, so that immunoglobulin synthesis is reduced, cytokine secretion is disturbed, disease resistance of broiler chickens is reduced, and death rate is increased. Therefore, developing efficient heat stress resistant feed becomes a key for solving the problem of raising broiler chickens in summer or in a high-temperature environment. The news network of the department of agriculture suggests that vitamin E and vitamin C are properly added into the feed to alleviate the influence of heat stress. The 0.1% fumaric acid can be added into the feed under the conditions of easy convulsion and fried group of broiler chickens, so that the effects of relieving heat stress, stimulating appetite and improving feed conversion rate can be achieved. However, these products act primarily by supplementing vitamins, regulating electrolyte balance, or providing exogenous antioxidants, helping to maintain body homeostasis to some extent. However, the existing products have the defects of single function, insufficient synergistic effect, poor stability, high cost and the like. For example, a single antioxidant component is difficult to fully cope with complex oxidative damage caused by heat stress, a chemically synthesized antioxidant may have the problems of low bioavailability, residual risk and the like, and most traditional Chinese medicine extracts have poor palatability due to bitter taste, and the content of active ingredients is unstable, so that the application effect is unsatisfactory. Therefore, the breeding industry is in urgent need of a novel compound feed additive which has natural components, synergistic effects and good stability and can comprehensively improve the heat stress resistance of broilers. Disclosure of Invention In order to solve the problems, the invention provides the heat stress resistant feed based on the combination of the yeast selenium and the garlicin and the preparation method thereof, and the yeast selenium with high bioavailability and the natural antibacterial garlicin are combined by a microencapsulation technology to cooperatively enhance the oxidation resistance, immunity and anti-inflammatory capability of broilers, so that the heat stress is efficiently relieved. The technical scheme of the invention is that the heat stress resistant feed based on the combination of yeast selenium and allicin comprises, by weight, 1-5 parts of yeast selenium, 2-8 parts of allicin, 10-30 parts of dandelion, 5-15 parts of rhizoma atractylodis, 20-40 parts of wheat bran, 5-10 parts of glucose, 10-20 parts of dextrin, 1-3 parts of vitamin premix and 1-3 parts of compound mineral premix. Further, the feed additive comprises, by weight, 1 part of yeast selenium, 2 parts of allicin, 10 parts of dandelion, 5 parts of rhizoma atractylodis, 20 parts of wheat bran, 5 parts of glucose, 10 parts of dextrin, 1 part of compound vitamin premix and 1 part of compound mineral premix. Further, the feed additive comprises, by weight, 3 parts of yeast selenium, 5 parts of allicin, 20 parts of dandelion, 10 parts of rhizoma atractylodis, 30 parts of wheat bran, 7 parts of glucose, 15 parts of dextrin, 2 parts of compound vitamin premix and 2 parts of compound mineral premix. Further, the feed additive comprises, by weight, 5 pa