32results about How to "Increase average daily feed intake" patented technology

The invention discloses an antibiotic-free piglet feed and a preparation method thereof, and belongs to the fields of formula design and processing technologies of feeds. The feed is mainly prepared from, by weight, 50-60 parts of corn, 2-4 parts of steamed fish meal, 10-16 parts of soybean meal, 1-5 parts of puffed soybeans, 3-5 parts of wheat flour, 3-6 parts of whey powder, 0.5-1 part of coconut oil, 0.5-1 part of soybean oil, 0.02-0.03 parts of antibacterial peptides, 1-3 parts of probiotics, 0.012 parts of Yucca smalliana Fern. extract, 0.3-0.7 parts of stone flour, 0.3-0.5 parts of edible salt, 0.8-1.2 parts of calcium hydrogen phosphate, 0.3-0.8 parts of amino acids, 0.03-0.05 parts of compound enzyme, 0.3-0.4 parts of composite vitamins and 0.2-0.6 parts of composite trace elements. The feed meets antibiotic-free piglet daily ration nutrient standards, adopts the antibacterial peptides to substitute antibiotics, and comprehensively solves problems through adding the probiotics, the daily gain is increased by 6.17%, the average daily feed intake is increased by 5.38%, and the diarrhea rate is reduced by 8.72%. The feed makes the intestinal tracts of piglets have good health state, has high disease resistance, and lays an early foundation for early slaughtering, no medication and safe pork products.

The invention relates to a piglet forage ingredient and its preparation method and use. The preparation method comprises the following steps of carrying out controlled-enzymatic hydrolysis of lactalbumin to a hydrolysis degree of 15 to 20%, carrying out sterilization at a temperature of 80 to 95 DEG C for 10 to 30min, concentrating the sterilized enzymatic hydrolysis product into an enzymatic hydrolysis product concentrated solution having solid content of 30-40%, adding 0.1 to 0.3% of ethyl maltol into the enzymatic hydrolysis product concentrated solution, and carrying out heat preservation at a temperature of 100 to 120 DEG C for 1 to 3h to obtain the piglet forage ingredient. Through being used in weaned piglet forage, the piglet forage ingredient can obviously improve piglet forage attraction to a weaned piglet.

The invention belongs to the technical field of feeds, and discloses a feed capable of improving the productive performance of lactating sows and a feeding method thereof. The feed comprises 5wt%-10wt% of beet pulp. The beet pulp is added into the feed, so as to reduce the cost of feed, increase the level of digestible fiber in feed, and improve the productive performance of lactating sows. Experiments show that: feeding the sows with the feed according to the feeding method can effectively improve the productive performance of lactating sows, obviously increase the average daily feed intake of lactating sows, simultaneously increase the average weaning weight of piglets, the piglet weight at weaning, the average daily gain of piglets and the daily lactation yield of lactating sows, shorten the interval between ablactation and oestrus of lactating sows, and increase the oestrus rate in 10 days after ablactation.

The invention provides a low-temperature degradation straw composite microbial agent containing Saccharomyces cerevisiae. The composite bacterial agent uses 6 strains, so that the corn stalk maturitydays can be increased by 2 to 3 days in an environment with the outdoor temperature of 1 to 6 DEG C, and then the composite bacterial agent is particularly suitable for northern regions. Compared withthe control group, the average milk yield of cows fed with corn straw treated with compound bacteria is increased by 8.9kg, the content of crude fibers in cow manure is decreased by 3.4%, and the average daily intake is increased by 2.3kg, because the compound bacteria for degrading lignocelluloses is added, and a large amount of Saccharomyces cerevisiae is contained in the compound bacteria, thecorn straw has soft texture and acid aroma, and the palatability is obviously improved to increase the appetite of livestock. Furthermore, the Saccharomyces cerevisiae can promote animal growth, regulate normal gastrointestinal flora and maintain microecological balance, thereby having the effects of improving gastrointestinal functions, increasing food digestibility and biological values, reducing serum cholesterol, controlling endotoxin, inhibiting the growth of spoilage bacteria in intestinal tracts and improving the immunity of bodies and the like so as to further increase the daily output.

The present invention relates to a feed fragrance agent with a feeding attraction function, and a preparation method thereof. The feed fragrance agent comprises the following components, by weight, 2-6 parts of ethyl butyrate, 2-5 parts of ethyl lactate, 2-10 parts of butyric acid, 20-70 parts of gamma-nonanolactone, 5-25 parts of gamma-octalactone, 2-15 parts of delta-decalactone, 2-10 parts of delta-dodecalactone, 2-15 parts of butter ester, 30-80 parts of ethyl vanillin, and 500-900 parts of a carrier. Compared with the feed fragrance agent in the prior art, the feed fragrance agent of the present invention has advantages of strong feeding attraction, good palatability, effectively improved animal growth performance, effectively improved feed utilization conversion efficiency, and the like.

The invention belongs to the technical field of animal nutrition and feed formulas, and particularly relates to antibiotics-free fermented feed for Hainan black pigs and a method for preparing the antibiotics-free fermented feed. The antibiotics-free fermented feed for the Hainan black pigs comprises, by weight, 35-73% of corn, 4-25% of bean pulp, 0.5-6% of fish meal, 4-20% of rice bran meal, 5-15% of coconut meal, 4-12% of bran, 0.5-1.6% of stone powder, 0.8-1.5% of calcium hydrogen phosphate, 0.2-0.5% of table salt, 0.1-1.0% of premixes and 0.01-0.5% of enzyme preparations. The method for preparing the antibiotics-free fermented feed for the Hainan black pigs includes smashing and treating the corn, the bean pulp, the fish meal, the rice bran meal, the coconut meal, the bran, the stone powder and the like; matching the corn, the bean pulp, the fish meal, the rice bran meal, the coconut meal, the bran, the stone powder and the like with the calcium hydrogen phosphate, the table salt, the premixes and the enzyme preparations to obtain basic fermentation substrates; adding complex microbial preparations into the basic fermentation substrates and carrying out sufficient fermentation treatment to obtain the antibiotics-free fermented feed with comprehensive and balanced nutrition. The antibiotics-free fermented feed and the method have the advantages that 4-50% of antibiotics-free fermented feed is added into conventional compound feed for black pigs at different phases, accordingly, the breeding costs of the Hainan black pig can be reduced, the feed intake and the growth speeds can be increased, the health of gastrointestinal tracts of sow and piglets can be improved, and the productivity of the Hainan black pigs can be enhanced.

The invention discloses special immunity improving feed for crabs. The feed comprises the following raw materials including corn, bean pulp, rapeseed dregs, barley, sorghum, dried potato powder, fish meal, shell powder, clamshell powder, stone powder, vegetable oil, common salt, sodium bicarbonate, trace elements, bromelain, vitamin C, propolis extracts, brewer's yeast, cryytococcus neoformans, candida utilis, lysine, methionine, gulfweed powder, chlorella powder, undaria pinnatifida powder, sagebrush, jasmine powder, sweet-scented osmanthus, linseed, dictamnus dasycarpus, leaf mustard, spanish bayonet, tamarindus, cinnamon, tea polysaccharide, achyranthan and potentilla anserine polysaccharide. The special immunity improving feed for crabs provided by the invention has the advantages that the recipe is scientific; the nutrition is rich; the palatability is good; the immunity of the crabs is improved; the appetite of the crabs is promoted; the growth of the crabs is promoted.

The invention discloses a medicinal composition for treating livestock and poultry cold, a preparation method thereof and application thereof and aims to provide the medicinal composition for effectively preventing and controlling the livestock and poultry cold, the preparation method thereof and the application thereof. The medicinal composition for treating the livestock and poultry cold comprises the following components in percentage by weight: 10 to 30 percent of paracetamol, 0.1 to 0.5 percent of chlorpheniramine maleate, 3 to 10 percent of taurine, and the balance of pharmaceutically acceptable adjuvant. When livestock and poultry catch cold, the medicinal composition for treating the livestock and poultry cold quickly relieves poultry hyperthermia, improves enhance resistance and effectively relieves reduced appetite, quickened breath, death and the like of the livestock and poultry caused by livestock and poultry influenza. The medicinal composition can improve laying rate and egg weight, improve daily average feed intake, improve feed conversion rate, alleviate laying peak descending process and reduce egg breakage rate. The medicinal composition can reduce comb temperature, body temperature and breathing rate shortening course of disease of heat stress layer chicken.

The invention relates to the technical field of preparation of pig feed, and in particular discloses formula feed capable of improving the intestinal barrier function and digestive enzyme activity of early-weaned piglets, and a feeding method of the formula feed. The formula feed is prepared from basal diet and a lactobacillus acidophilus culture, wherein the mass of the lactobacillus acidophilus culture accounts for 1-5% of the total mass of the formula feed. After the formula feed provided by the invention is used for feeding the early-weaned piglets, the average daily feed intake of the weaning stress piglets can be remarkably improved, the heights of villi in the duodenum, the jejunum and the ileum are remarkably increased, the depths of recesses of the duodenum and the ileum are obviously reduced, and the heights of villi or the depths of recesses of all intestinal tracts of small intestines are significantly improved. The contents of sucrase, lactase and maltase of the jejunum are remarkably improved. The formula feed is easy in obtaining of raw materials, simple in preparation method and convenient to use.

The invention relates to the field of straw treatment, mainly relates to a method for pretreating straw through steam, and in particular to a straw treating method and application thereof. The method comprises the following step of performing steam explosion pretreatment on the straw: performing steam explosion pretreatment on crushed straw, and after treatment, naturally airing the pretreated straw for standby application, wherein the steam exposition pressure is 2.8-5MPa, and the dwell time is 80-180s. According to the method disclosed by the invention, firstly the steam explosion pretreatment on the straw is performed in a specific manner, so that the degradability and the utilization rate of the straw are improved; then the straw after the explosion pretreatment is treated through fermentation, and the fermented straw is used as an animal feed, so that the problem that a great deal of straw is stacked is solved, and the breeding profit of animals is also increased.

The invention discloses a natural feed additive for improving the growth performance and meat quality of livestock and poultry and application thereof. The additive is prepared from pine bark extract, rosemary extract, fructus aurantii immaturus flavone and folium cortex eucommiae extract. Further, the mass ratio of the pine bark extract to the rosemary extract to the fructus aurantii immaturus flavone to the folium cortex eucommiae extract is (1-3): (2-6): (0.5-1.5): (1-5); preferably, the mass ratio of the pine bark extract to the rosemary extract to the fructus aurantii immaturus flavone to the folium cortex eucommiae extract is 2: 4: 1: 3; according to the natural feed additive capable of improving the growth performance and meat quality of livestock and poultry, the plant extracts which are wide in source and low in price and have different characteristics are combined by utilizing the physiological functions of oxidation resistance, inflammation resistance, flora regulation and the like of the plant extracts; the natural feed additive capable of effectively improving the growth performance and meat quality of livestock and poultry is screened out.

The invention relates to the technical field of feed processing, and discloses a milk replacer for a weaning piglet and a preparation method thereof. The milk replacer comprises puffed rice, flour, dehulled soybean meal, fermented soybean meal, low-protein whey powder, feed grade milk powder, dried porcine soluble, plasma protein, soybean oil, L-lysine, L-threonine, DL-methionine, glucose, white sugar, feed grade calcium hydrophosphate, feed grade calcium carbonate, zinc oxide, multivitamin mixture, feed grade ferrous sulfate, feed grade manganese sulfate monohydrate, and feed grade copper sulfate pentahydrate. According to the milk replacer, multiple nutrient substances are carefully selected, the breast milk structure of a sow is fully simulated, piglets are enabled to realize the full potential in growing, the average daily feed intake and daily gain of weaning piglets are improved to the high limit, the feed conversion ratio and diarrhea rate of the piglets are reduced at the same time, and a sufficient physiological and material basis is provided for rapid and efficient growing of piglets in later period.

The invention discloses an ecological breeding feed for mutton sheep and a preparation method of the ecological breeding feed, and belongs to the technical field of feed preparation. The ecological breeding feed comprises the following raw materials of alfalfa, corn germ meal, distillers' grains DDGS, corn, middling, rice bran, bran, soybean meal, rapeseed meal, a premix feed, a microecological preparation, an additive A, an additive B and an additive C. The ecological breeding feed for mutton sheep is prepared through the steps of crushing materials, performing mixing, performing granulation,performing drying and the like. Through adoption of the prepared ecological breeding feed for mutton sheep, the average daily feed intake and the average daily gain of the mutton sheep and the digestibility of each nutrient substance can be effectively and obviously increased, and the prevalence rate can be reduced.

The invention discloses a combined fiber feed for regulating and controlling intestinal health of sows, and relates to the technical field of pig feeds. The feed comprises the following components in parts by mass: 300-400 parts of corn, 200-300 parts of wheat, 100-150 parts of wheat bran, 100-150 parts of rice bran, 150-200 parts of soybean meal, 20-60 parts of a sow premix, 15-20 parts of medical stones, 20-50 parts of rice bran, 10-30 parts of peas, 10-30 parts of sweet potato vines, 20-50 parts of fish meal, 50-80 parts of soybean cakes, 5-10 parts of vegetable oil, 40-70 parts of a complex and 5-20 parts of compound bacteria. Natural plants are added to a conventional sow feed, so that the oxidation resistance of the pig feed is improved, the growth of molds is restrained, and the healthy and excellent growth of pigs can be promoted by improving the growth performance, the oxidation resistance, the meat quality, the immune performance, cecum microorganisms, serum biochemistry and other indexes of the pigs.

The invention relates to the technical field of probiotics, in particular to lactobacillus amylovorus and application thereof. The lactobacillus amylovorus SLZX20-1 provided by the invention is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.20122. The lactobacillus amylovous SLZX20-1 has better acid resistance and cholate resistance, strong lactic acid production capacity and better adhesion to intestinal epithelial cells, and has the capabilities of resisting pathogenic bacteria infection, promoting expression of host defense peptides of the intestinal epithelial cells, producing various enzymes such as alpha-galactosidase, beta-glucosidase, feruloyl esterase and the like. The lactobacillus amylovorus can promote intestinal development when being fed to animals, has the potential of improving the disease resistance of the animals and the feed conversion rate, and is wide in application prospect as an antibiotic substitute.

The invention relates to a fattening sheep compound feed for reducing fat deposition. The fattening sheep compound feed comprises the following components in parts by weight: 0.05-0.5 part of a compound additive obtained by mixing betaine, chitosan oligosaccharide and L-carnitine, 25-35 parts of corn, 1-3 parts of bran, 3-7 parts of soybean meal, 5-10 parts of oil residue, 10-15 parts of silage, 3-7 parts of corn germ meal, 30-40 parts of Chinese wild rye, 0.1-1 part of table salt, 0.5-1.5 parts of stone powder, 0.1-1 part of calcium hydrogen phosphate and 0.5-1.5 parts of a mixture of vitamins and trace elements. The compound feed provided by the invention can increase the final weight, average daily gain, average daily feed intake and feed conversion rate of the fattening sheep while remarkably reducing the absolute weight of the fattening sheep tail and rumen fat and the total fat, the proportion of the fattening sheep tail and rumen fat and the total fat to the live weight before slaughtering and the proportion of the perirenal fat to the live weight before slaughtering in comparison with a control group; thus, the compound feed provided by the invention can noticeably reduce the fat content without influencing the growing performance and slaughtering performance of mutton sheep; and moreover, the compound feed is safe to use and has a great promotion value.

The invention relates to a piglet forage ingredient and its preparation method and use. The preparation method comprises the following steps of carrying out controlled-enzymatic hydrolysis of lactalbumin to a hydrolysis degree of 15 to 20%, carrying out sterilization at a temperature of 80 to 95 DEG C for 10 to 30min, concentrating the sterilized enzymatic hydrolysis product into an enzymatic hydrolysis product concentrated solution having solid content of 30-40%, adding 0.1 to 0.3% of ethyl maltol into the enzymatic hydrolysis product concentrated solution, and carrying out heat preservation at a temperature of 100 to 120 DEG C for 1 to 3h to obtain the piglet forage ingredient. Through being used in weaned piglet forage, the piglet forage ingredient can obviously improve piglet forage attraction to a weaned piglet.

The invention discloses an antibiotic-free and selenium-enriched traditional Chinese medicine feed additive for pigs. The feed additive is prepared from the following components in parts by weight: 9to 12 parts of herba dendrobii officinale, 9 to 12 parts of poria cocos, 3 to 8 parts of radix ginseng, 5 to 9 parts of honeysuckle flower, 9 to 12 parts of perilla seeds, 6 to 9 parts of fructus crataegi, 6 to 9 parts of fructus hippophae and 6 to 9 parts of cortex eucommiae. The feed additive disclosed by the invention is added into feed for fattening pigs and can replace antibiotics; the feed additive has the effects of improving the production performance of the pigs, improving the content of selenium and protein in pork and reducing the content of cholesterol in the pork.

The invention provides a low-temperature degradation straw composite microbial agent containing Saccharomyces cerevisiae. The composite bacterial agent uses 6 strains, so that the corn stalk maturitydays can be increased by 2 to 3 days in an environment with the outdoor temperature of 1 to 6 DEG C, and then the composite bacterial agent is particularly suitable for northern regions. Compared withthe control group, the average milk yield of cows fed with corn straw treated with compound bacteria is increased by 8.9kg, the content of crude fibers in cow manure is decreased by 3.4%, and the average daily intake is increased by 2.3kg, because the compound bacteria for degrading lignocelluloses is added, and a large amount of Saccharomyces cerevisiae is contained in the compound bacteria, thecorn straw has soft texture and acid aroma, and the palatability is obviously improved to increase the appetite of livestock. Furthermore, the Saccharomyces cerevisiae can promote animal growth, regulate normal gastrointestinal flora and maintain microecological balance, thereby having the effects of improving gastrointestinal functions, increasing food digestibility and biological values, reducing serum cholesterol, controlling endotoxin, inhibiting the growth of spoilage bacteria in intestinal tracts and improving the immunity of bodies and the like so as to further increase the daily output.

The invention provides a traditional Chinese medicine fungicide as well as a preparation method and application thereof. The fungicide comprises probiotic liquid, a traditional Chinese medicine extract, a vitamin additive and a trace element additive. According to the traditional Chinese medicine fungicide, the average daily gain and the average daily feed intake of Putian black ducks can be remarkably increased, and the feed conversion ratio is remarkably reduced. The average laying number of the Putian black ducks and the average quality of single eggs are obviously increased. The thymus index, bursa of Fabricius index, spleen index and serum IgG content of the Putian black ducks are remarkably increased, the hatching rate of the Putian black duck eggs is remarkably increased, and the mercury, lead and cadmium content of leg muscles of the Putian black ducks is remarkably reduced. The average daily gain and the average daily feed intake of pigs can be remarkably increased, and the feed conversion ratio is remarkably reduced; and the slaughter rate and the net meat rate of the pigs are remarkably increased, the carcass cooling loss rate is remarkably reduced, and the mercury, lead and cadmium contents of pig hind leg muscles are reduced.

The invention discloses a method for preparing threonine zinc, which is characterized by comprising the following steps: mixing zinc powder and threonine water solution in a molar ratio of the zinc powder to threonine of (0.4 to 1) to 2, reacting the mixture at the reaction temperature of between 40 and 95 DEG C, and obtaining a reaction product after the reaction is finished; and concentrating the reaction product in vacuum or extracting the reaction product by an organic solvent, and drying and crushing the reaction product to obtain a threonine zinc finished product. The method for preparing the threonine zinc has the advantages of simple process, full reaction, low cost and good product quality.

The invention discloses a disease-resistant type feed additive capable of promoting digestion and absorption and an application of the disease-resistant type feed additive, and belongs to the technical field of feed additives. The disease-resistant type feed additive capable of promoting digestion and absorption comprises the following raw materials of licorice roots, medicated leaven, endotheliumcorneum gigeriae galli, pumpkin seeds, azedarach, pseudobulbus cremastrae seu pleiones, umbellate rockjasmine herbs, rhizoma fagopyri cymosi roots, carboxymethyl-beta-cyclodextrin and sodium polyacrylate. The disease-resistant type feed additive capable of promoting digestion and absorption is applied to an ecological breeding feed for mutton sheep; after the ecological breeding feed for mutton sheep, prepared from the disease-resistant type feed additive capable of promoting digestion and absorption, is used, the average daily feed intake and the average daily gain of the mutton sheep and the digestibility of each nutrient substance can be effectively increased, and the prevalence rate can be reduced.

The disclosure provides a compound Chinese herbal medicine preparation, which is made of the following raw materials in the weight ratio: 10-15 parts of Radix Radix, 8-10 parts of Honeysuckle, 5-10 parts of Dandelion, 5-8 parts of Scutellaria baicalensis, and 5-8 parts of Astragalus , 5-8 parts of licorice, 3-7 parts of tangerine peel, 3-5 parts of cinnamon, 3-5 parts of chrysanthemum, 1-3 parts of galangal and 0.3-1 part of Morinda officinalis. The disclosure also provides a preparation method of the compound Chinese herbal medicine preparation. The compound Chinese herbal medicine preparation prepared by the disclosure has antibacterial and antiviral properties, enhances the immunity of piglets and improves the growth performance of piglets, thereby reducing the use of drugs such as antibiotics and vaccines, thereby improving the economic benefits of pig farms and the safety of meat products.

The invention provides a microbial nutrient solution feed for animals and a preparation method therefor. The microbial nutrient solution feed comprises a probiotics solution, a traditional Chinese medicine extract and a microelement additive. The probiotics solution comprises Veillonella parvula, Lachnospira multiparus and the like. The traditional Chinese medicine extract comprises parched hawthorn fruits, radix codonopsis pilosulae, radish seeds, dandelions, dried tangerine peel, rhizoma dioscoreae, Gelsemium elegans and radix astragali. The microelement additive comprises iron hydroxymethionine, ferrous sulfate, zinc hydroxymethionine, zinc sulfate, selenium yeast, sodium selenite and manganese sulfate. The microbial nutrient solution feed can be used for remarkably increasing the average daily gain and average daily feed intake of broiler chicken and remarkably lowering a feed / meat ratio; the average egg laying and single-egg average mass of laying hens are remarkably increased; and the thoracic gland index, bursa of fabricius index, spleen index and serum IgG content of the broiler chicken are remarkably increased. The microbial nutrient solution feed can be used for remarkably increasing the average daily gain and average daily feed intake of pigs and remarkably lowering the feed / meat ratio; and the dressing percentage and pure meat percentage of hogs are remarkably increased, and the cooling loss rate of carcasses is remarkably lowered.

The invention adapts to the field of application of plants in saline-alkali soil, and provides a method for feeding broiler chickens with suaeda salsa in the saline-alkali soil. The method includes the following steps that suaeda salsa seeds are pretreated, suaeda salsa seed oil is extracted, broiler chicken feedstuff with the suaeda salsa seed oil is prepared, the broiler chickens are fed with the broiler chicken feedstuff, and healthy one-day-old broiler chickens are selected; a preliminary trial period is 7 days; a test period is 42 days totally and divided into two stages, wherein a brooding period is 1-21 days, and a fattening period is 22-42 days; the broiler chickens are bred flat on a net inside the same henhouse, and feedstuff feeding and water feeding are freely performed; in thebrooding period, the suaeda salsa seed oil and common broiler chicken feedstuff in the brooding period are mixed according to the weight ratio of 3-6:100, and then feeding is performed; in the fattening period, the suaeda salsa seed oil and common broiler chicken feedstuff in the fattening period are mixed according to the weight ratio of 2-4:100, and then feeding is performed. In this way, withthe method, the suaeda salsa seeds can be prepared into the feedstuff, and the broiler chickens are reasonably fed with the feedstuff.

The invention discloses a compound preparation for reducing the diarrhea rate of weaned piglets, which is formed by mixing an oligosaccharide acidifier liquid and a probiotic fermentation liquid at a volume ratio of 1:(3‑5); every 1 mL of the oligosaccharide The acidulant solution contains: oxalic acid 2500-3500μg, tartaric acid 30-60μg, malic acid 50-100μg, lactic acid 4000-5500μg, citric acid 2500-4000μg, glucose 0.05-0.2g, oligomeric isomaltose 0.05-0.1g, oligomeric Fructose 0.02-0.06g, chitosan oligosaccharide 0.08-0.15g; the probiotic fermented liquid is by volume ratio (2-4) by volume ratio (2-4) :1 mixed. The invention also discloses a preparation method of the compound preparation for reducing the diarrhea rate of weaned piglets. The compound preparation of the invention can reduce the diarrhea probability of weaned piglets, reduce the mortality rate of piglets, and improve the production performance and immune function of piglets.

The present invention relates to a feed fragrance agent with a feeding attraction function, and a preparation method thereof. The feed fragrance agent comprises the following components, by weight, 2-6 parts of ethyl butyrate, 2-5 parts of ethyl lactate, 2-10 parts of butyric acid, 20-70 parts of gamma-nonanolactone, 5-25 parts of gamma-octalactone, 2-15 parts of delta-decalactone, 2-10 parts of delta-dodecalactone, 2-15 parts of butter ester, 30-80 parts of ethyl vanillin, and 500-900 parts of a carrier. Compared with the feed fragrance agent in the prior art, the feed fragrance agent of the present invention has advantages of strong feeding attraction, good palatability, effectively improved animal growth performance, effectively improved feed utilization conversion efficiency, and the like.

The invention discloses a method for preparing threonine zinc, which is characterized by comprising the following steps: mixing zinc powder and threonine water solution in a molar ratio of the zinc powder to threonine of (0.4 to 1) to 2, reacting the mixture at the reaction temperature of between 40 and 95 DEG C, and obtaining a reaction product after the reaction is finished; and concentrating the reaction product in vacuum or extracting the reaction product by an organic solvent, and drying and crushing the reaction product to obtain a threonine zinc finished product. The method for preparing the threonine zinc has the advantages of simple process, full reaction, low cost and good product quality.

The invention relates to the field of feeds, and particularly discloses a suckling pig milk powder feed and a preparation method thereof. The preparation method of the milk powder feed comprises the following steps of preparing puffed corn, preparing fermented soybean meal, crushing the puffed corn and the fermented soybean meal, performing primary blending, and performing granulation and performing secondary blending, wherein the weight ratio of granules to powder is (12-20: 80-88). The suckling pig milk powder feed prepared according to the method can be used for feeding suckling pigs whichare born for 5-20 days, the probability that the suckling pigs suffer from respiratory diseases can be reduced, and meanwhile it is ensured that the suckling pigs can grow rapidly.