36results about How to "Improve eye area" patented technology

The invention discloses coarse cereal type growing and fattening pig compound feed for promoting the growth and improving the meat quality. The coarse cereal type growing and fattening pig compound feed is prepared from the compositions of corn, barley, broomcorn, bean pulp, phosphatide oil powder, orange peel dreg, calcium hydrogen phosphate, rock flour, salt, vitamin E, lysine, threonine, plant extract, probiotics, choline chloride, multiple vitamins, multiple microelement pre-mixed feed and the like through mixing. The coarse cereal type growing and fattening pig compound feed disclosed by the invention has the advantages that the source of the feed is rich, no pollution, residue and side effects are generated, the cost is low, the processing is convenient, and the storage is easy; while rapid growth speed is ensured, an eye muscle area is increased, and the backfat thickness is reduced; the meat quality is improved while the lean meat percentage is increased; the pH (Potential of Hydrogen) value of meat is normal, the meat color grade is improved, marble veins are formed, the tenderness is increased, the rate of water loss is reduced, the cooked meat percentage is increased, and the storage loss is reduced.

Provided is a pig forage improving meat quality. The pig forage is characterized in that the pig forage is composed of the following ingredients, by weight, 30 parts of corn flour, 20 parts of puffed corn, 15 parts of sorghum, 15 parts of soybean meal, 15 parts of wheat flour, 10 parts of wheat bran, 0.1 part of choline chloride, 0.1 part of methionine, 0.1 part of threonine, 0.5 part of lysine, 0.2 part of salt, 1 part of Chinese herbal medicine materials, 0.15 part of microecologics, 0.15 part of vitamin premix, 0.3 part of trace element premix and 0.02 part of compound enzyme preparation. Based on the safe and relieved principles, trace elements, vitamins and functional substances are blended with energy raw materials, protein raw materials, amino acids and the like according to certain ratios, and a pig mixed forage promoting growth, lowering material consumption, raising the lean meat percentage and improving meat quality is developed.

Fodder for growing and fattening pigs is characterized by being prepared from the following components in parts by weight: 25 parts of corn flour, 15 parts of extruded corn, 15 parts of vinasse, 15 parts of bean pulp, 15 parts of wheatmeal, 15 parts of wheat bran, 10 parts of rape seed cake, 0.10 parts of choline chloride, 0.10 parts of calcium hydrophosphate, 0.01 parts of natural steroid yucca saponin, 0.2 parts of methionine, 0.15 parts of threonine, 0.4 parts of lysine, 0.3 parts of table salt, 1 part of Chinese herbal medicine material, 0.01 parts of probiotics, 0.01 parts of pig multi-vitamin, 0.3 parts of trace mineral premix and 0.03 parts of complex enzyme. The fodder is reasonable in matching, can improve growth performance of the pigs, enhances the immunity of the pigs, reduces fodder waste, increases fodder nutrition absorption, and lowers nutrient excretion.

The invention discloses an antibiotic-free feed for fattening pigs, belonging to the technical field of feeds. The antibiotic-free feed comprises a feed used during a fattening period and a feed used before slaughter, wherein the feed used during the fattening period is prepared from the following materials by weight percent: 54-58 percent of corn, 17-19 percent of soybean meal, 10-14 percent of wheat germ, 8-10 percent of wheat middling, 1 percent of composite additive, 3 percent of premixed materials and 1 percent of trace elements; and the feed used before slaughter is the feed used during the fattening period without adding the trace elements. By adopting the feed, the application of antibiotics can be avoided, the metal level in the produced pork is greatly reduced, the meat color score is improved by 14.55 percent, the marbling score is improved by 9.09 percent, the fat content in muscle is improved by 21.05 percent, and the rate of water loss is reduced by 32.98 percent. By using the feed provided in the invention, the daily gain and the survival rate of the fattening pigs are significantly increased, the feed conversion ratio is reduced, the body weight for slaughter is increased, and feeding days and age in days for slaughter are significantly reduced. In addition, the preparation method disclosed in the invention is simple, and the production cost is low.

The invention belongs to the technical field of pork pig feeds, and particularly relates to a Chinese herbal medicine feed additive for preventing and treating digestive tract diseases of pork pigs and a preparation method of the feed additive. The preparation method comprises the steps that semen raphani, unpolished seeds of Job's tears, aucklandia lappa, medicine terminalia fruit and pericarpium citri reticulatae are sequentially subjected to reflux extraction with 60%-90% ethyl alcohol and potable water, extracted solutions are mixed and then are mixed with water extracts of flower of poplar, herba portulacae, the root of Chinese pulsatilla, poria cocos, cortex magnoliae officinalis, atractylodes macrocephala koidz, sophora japonica, gordon euryale seeds, radix astragali, radix codonopsis, radix scutellariae, rhizoma atractylodis, crataegus pinnatifida and licorice root to obtain a mixed liquid, the mixed liquid is concentrated, dried and processed so as to form dry powder, and finally the dry powder is evenly mixed with crushed fried malt powder and Kelp powder and then packaged. According to the Chinese herbal medicine feed additive, the raw materials are scientific and reasonable, the preparation process is high in operability, and the prepared additive is good in palatability, can effectively prevent the digestive tract diseases of the pork pigs from occurring, promotes the productive performances, anti-stress capacity and immunity of the pork pigs, and improves the quality and nutritive value of pork.

The invention relates to the technical field of improving agents for improving the meat quality of livestock, poultry, aquatic products, etc. The meat quality improving agent described in the invention has no toxic and side effect and contains vegetable compound extract, one or more than one ingredient from cysteamine, L-carnitine and organic selenium; wherein, the vegetable compound extract contains active material containing alkaloid and saponin. The meat quality improving agent with no toxic and side effect is in accordance with the principles of physiology and animal nutrition, is developed on the basis of the deep researches on the factors which can affect the meat quality of livestock, poultry, aquatic products such as feed energy, crude protein, crude fat, mineral elements, vitamins, and the like, and is a feed additive which finds the optimal combining point of high lean meat percentage, high growth rate and high meat quality and overcomes a plurality of problems of single formulation occurring in the process of improving meat quality.

The invention relates to the field of feeds, and in particular relates to a biological feed composition containing organic trace elements, an application of the composition, a composite premix for the growing and fattening of pigs, and feeds specially for the growing and fattening of the pigs. The biological feed composition comprises organic trace elements and a yeast metabolic product, wherein the organic trace elements comprise copper glycine, ferrous fumarate, zinc lactate, manganese methionine, selenium yeast and chromium nicotinate. Due to the addition of the yeast metabolic product in the biological feed composition, a synergistic effect of all the trace elements can be achieved, and the utilization rate of the trace elements can be increased; by the feeds prepared from the biological feed composition, the lean meat percentage, loin eye area, color grade, muscle marble vein grade, muscle tenderness, intramuscular fat content and flavor grade of pork can be remarkably increased, the backfat thickness, the water loss rate and the drip loss can be remarkably reduced, and the carcass and quality of the pork can be remarkably improved.

The invention relates to a traditional Chinese medicine compound piglet feed. The traditional Chinese medicine compound piglet feed comprises feed main materials; and the feed main materials comprise corns, soybean meal, wheat, brewers grains, steam fish meal, flour, baking soda and a liquid enzyme preparation. According to the traditional Chinese medicine compound piglet feed provided by the invention, traditional Chinese medicine components are added to the feed main materials so that the effects of enhancing the pig immunity and adjusting the gastrointestinal functions of pigs are realized, and the utilization amount of antibiotics is reduced, even the antibiotics are not used.

The invention discloses fermented feed for improving pork quality and a preparation method and an application thereof. Raw materials fermented by Bacillus subtilis subsp. subtilis ZJUAF-3 and Pediococcus pentosaceus ZJUAF-4 contain abundant probiotics, organic acids and unsaturated fatty acids. The fermented feed obtained by the preparation method is characterized in that the Bacillus subtilis subsp. subtilis viable count is equal to or larger than 1.2x10<9> CFU / g, the Pediococcus pentosaceus viable count is equal to or larger than 2.3x10<9> CFU / g, the formic acid content is equal to or largerthan 45.12 mg / 100g, the acetic acid content is equal to or larger than 98.79 mg / 100g, the propionic acid content is equal to or larger than 1.22 mg / 100g, the lactic acid content is equal to or largerthan 138.45 mmol / kg, the butyric acid content is equal to or larger than 2.98 mg / 100g, the oleic acid content is increased by 3.98%, the linoleic acid content is increased by 7.15% and the linolenicacid content is increased by 0.29%. The fermented feed is used to improve the growth performance and meat quality of fattening pigs.

The invention relates to a mixed feed capable of improving carcass quality and drip loss of a fattening pig under a low-nitrogen-emission daily ration condition. The mixed feed is composed of 60 to 80% of corn, 8 to 20% of soybean meal, 5 to 15% of wheat bran, 0.5 to 2% of calcium hydrogen phosphate, 0.2 to 1% of calcium carbonate, 0.5 to 2% of lysine sulfate, 0.1 to 1.0% of threonine, 0.01 to 0.05% of methionine, 0.01 to 0.05% of tryptophan, 0.1 to 1.0% of sodium chloride, 0.1 to 1.0% of sodium bicarbonate, 0.01 to 0.5% of N-carbamylglutamic acid, 0.01 to 0.5% of magnesium sulfate, 0.01 to 0.5% of phytase, 0.01 to 0.5% of choline chloride, 0.01 to 0.1% of calcium propionate, 0.01 to 0.1% of ethoxy quinoline with a concentration of 66%, 0.01 to 0.1% of a microecological preparation, 0.001 to 0.1% of vitamin E, 0.001 to 0.01% of vitamin A and 0.5 to 2% of a composite premixed feed for the fattening pig. The mixed feed is applied to fattening pigs weighing 80 to 120 kg, can substantially reduce nitrogen emission in production of the fattening pigs, improves the carcass quality and drip loss of the fattening pigs under the low-nitrogen-emission daily ration condition, enhances the meat quality of the fattening pigs, and increases breeding benefits of live pigs.

The invention relates to a hybrid breeding method of a quality pig. The hybrid breeding method of the quality pig comprises the following steps: 1) a Zhejiang middle white pig containing Jinhua pig blood acts as a female parent and a Jiaxin black pig acts as a male parent, and a Jiaxin-Zhejiang binary hybrid pig is bred; and 2) the Jiaxin-Zhejiang binary hybrid pig acts as a female parent and a Berkshire pig acts as a male parent, and a Berkshire-Jiaxin-Zhejiang three-way hybrid pig is bred. With the adoption of the hybrid breeding method, a growth rate and a meat factor of three-way hybrid offspring are increased by 5-10% than those of Jiaxin-Zhejiang binary hybrid offspring, particularly an eye muscle area is increased by 30%; the amplitude of variation in meat flavor is little, particularly the intramuscular fat content is remained at 3-4% (ideal meat level); the marbling characteristic is very obvious; and the meat quality characteristics of the Berkshire pig and the domestic local pig are combined.

The invention discloses a rearing method for fattening pigs. The fattening pigs are reared in two stages, and separately fed with different kinds of feed regularly and quantitatively, it is ensured that balanced nutrition is provided for the pigs, the growth speed of the pigs is increased, the feed conversion ratio can be improved, the health conditions of pig bodies can be improved, and the immunity of the pig bodies can be improved; moreover, the stall-feed fattening pigs are effectively prevented from developing symptoms of wilting, constipation, inappetence and the like, weight gain of thefattening pigs is effectively promoted, significant improvement of the meat-production rate and the meat quality index is promoted, the pork is high in water-holding capacity and succulence, brightlyred in color and luster and good in texture and taste, and the pork quality and flavor are improved; besides, the carcasses are good in quality, the eye muscle area is large, the quality and the commodity value of the pork are remarkably improved, the feed-gain ratio is reduced, and the rearing method has very good economic benefits.

The invention relates to the field of biological engineering, in particular to a method for predicting a sheep eye muscle property by single nucleotide polymorphism (SNP). Polymerase chain reaction (PCR) amplification is performed on the total deoxyribonucleic acid (DNA) of sheep by primers shown as SEQ ID No.2 and SEQ ID No.3, the SNP of a PCR amplification product is detected, the 73rd basic group at the 5' end of SEQ ID No.1 in a sequence table is determined as G or A and an individual with a G allelic gene has a large eye muscle area and a large eye muscle width. Due to the detection of a polymorphic site, a new material is provided for molecular breeding and scientific basis is provided for the marker-assisted selection of the sheep eye muscle property.

The invention discloses an Anhui local pig breeding method capable of improving the meat quality based on Chinese pennisetum silage. The breeding method specifically comprises the steps of feeding a local variety pig of the weight of 50 kg or above three times every day, wherein the feeding time is 6:00-7:00 in the morning, 11:00 at noon and 17:00-18:00 in the evening, the pig is fed with concentrated feed and pick and eat food freely in the morning and in the evening, it is ensured that the feed for the pig is continuous, the pig finishes the feed within 1.5 h and there is no surplus, and thepig is fed with the Chinese pennisetum silage of 0.5-1.0 kg at noon. According to the Anhui local pig breeding method capable of improving the meat quality based on the Chinese pennisetum silage, thegrowth and slaughter performances of the local variety pig are improved, the pig meat quality is improved, the pig meat nutrient content is improved, the pig protein metabolized serum biochemical criterion is improved, and the breeding benefit of the live pig is increased. Feed formula ingredients involved in the method are all food crops and processing by-product, a nutritive additive is added,there is no residual medicine, and the formula is scientific and obvious in effect and has popularization value.

The invention discloses a Bama miniature pig selective breeding method. The method includes the steps that 1, Bama miniature male pigs and Bama miniature female pigs in a certain proportion form 0-generation core groups, the male pigs are mated with the female pigs, and at the same time, the inbreeding coefficient is controlled; 2, after the female pigs produce piglets, each litter of piglets is selected and remained, and the daily gain of each weaning piglet is measured; 3, the piglets whose daily gain is at the top of the list in the same batch are screened out, the comprehensive selection index of the piglets is calculated, and according to the calculation result, parent pigs are selected out; 4, the parent pigs that do not meet the breeding standard are rejected, and a replacement pig immunization plan is set for the screen-out parent pigs; 5, the parent pigs participating in the replacement pig immunization plan replace the same number of male pigs and female pigs needing to be weeded out in the 0-generation core groups, and mating is carried out; 6, the step 2 to the step 5 are repeated, one generation is produced in one year, and after three to four generations, improved Bama miniature pigs are obtained. The average piglet production number of Bama miniature pigs is improved, at the same time, the daily gain, backfat thickness, eye muscle area, intramuscular fat content of the Bama miniature pigs are significantly improved.

The invention relates to a traditional Chinese medicine composite feed for sows. The feed comprises a main feed material including corn, soybean meal, wheat, brewer's grains, steamed fish meal, flour, sodium bicarbonate, and a liquid enzyme preparation. Traditional Chinese medicine components are added in the main feed material to provide the function of improving immunity and regulating gastrointestinal functions of sows, so that consumption of antibiotic is reduced.

The invention relates to a Chinese herbal medicine additive, especially a Chinese herbal medicine additive for fattening pig feed. The Chinese herbal medicine additive provided by the invention is made of the following components of: by weight, 14-16% of haw, 8-10% of Radix Astragali, 4-6% of honeysuckle flower, 9-11% of epimeddium, 8-10% of muscardine silkworm, 14-16% of black sesame, 14-16% of a pine needle powder, 8-10% of common fennel fruit and 8-10% of Mythic Fungus. The Chinese herbal medicine additive for fattening pig feed has functions of strengthening stomach, disinhibiting dampness, eliminating indigestion and stagnation, clearing heat and detoxifying and improving immunity. After fattening pigs eat the pig feed added with the Chinese herbal medicine additive, the lean meat percentage, eye muscle area and average daily weight gain of fattening pigs are all remarkably increased; in the meanwhile, the feed / gain ratio and average backfat thickness are both remarkably reduced.

The invention belongs to the technical field of feed additives, and particularly relates to a Chinese herbal medicine and probiotic compound feed additive capable of relieving pig stress and improving meat quality and application of the Chinese herbal medicine and probiotic compound feed additive. The compound feed additive comprises the following components: Chinese herbal medicines, probiotics, enzyme, arginine and lauric acid, wherein the Chinese herbal medicines comprise radix astragali, herba portulacae, haws, Chinese yams, radix puerariae, Chinese wolfberry fruits, fiveleaf gynostemma herbs, mulberry leaves, bighead atractylodes rhizomes and licorice roots; in order to solve the problem of overall physiological stress of fattening pigs, the adopted Chinese herbal medicine compound can effectively relieve transportation stress and pre-slaughter stress of the pigs and can also improve the pork quality, and the adopted probiotics promote fermentation of Chinese herbal medicine components, so that the Chinese herbal medicines release effective components, absorption and utilization of animals to the Chinese herbal medicine components are promoted, and the effect of improving the quality of the fattening pigs is achieved. The Chinese herbal medicines play a role in relieving the overall stress response of the pigs, and the arginine adopted in the feed additive is beneficial to relieving stress, increasing the fat content of muscles and improving the nutrition balance.

The invention discloses an antibiotic-free feed for fattening pigs, belonging to the technical field of feeds. The antibiotic-free feed comprises a feed used during a fattening period and a feed used before slaughter, wherein the feed used during the fattening period is prepared from the following materials by weight percent: 54-58 percent of corn, 17-19 percent of soybean meal, 10-14 percent of wheat germ, 8-10 percent of wheat middling, 1 percent of composite additive, 3 percent of premixed materials and 1 percent of trace elements; and the feed used before slaughter is the feed used during the fattening period without adding the trace elements. By adopting the feed, the application of antibiotics can be avoided, the metal level in the produced pork is greatly reduced, the meat color score is improved by 14.55 percent, the marbling score is improved by 9.09 percent, the fat content in muscle is improved by 21.05 percent, and the rate of water loss is reduced by 32.98 percent. By using the feed provided in the invention, the daily gain and the survival rate of the fattening pigs are significantly increased, the feed conversion ratio is reduced, the body weight for slaughter is increased, and feeding days and age in days for slaughter are significantly reduced. In addition, the preparation method disclosed in the invention is simple, and the production cost is low.

The invention relates to making of a fodder for sulking pigs through fermentation of traditional Chinese medicine. The fodder comprises a fodder main ingredient, and the components of the fodder main ingredient are corn, bean pulp, dry potato powder, brewer's grain, potato vines, flour, baking soda and culture fermentation preparations. According to the making of the fodder for the sulking pigs through fermentation of traditional Chinese medicine, when the fodder is made, traditional Chinese medicine components are added into the fodder main ingredient, so that functions of strengthening immunity of the suckling pigs and adjusting gastrointestinal functions of the sulking pigs are achieved, and the amount of antibiotics is reduced or even the antibiotics are not needed.

The invention discloses a genetic marker using LRP10 gene as eye muscle area and backfat thickness of Dahe black pig, which relates to the technical field of pig genetic marker preparation. Its genetic marker nucleotide sequence is as follows: ctacttccctccttgttcNtcag...tagctaggtcattgc; N in the nucleotide sequence is c or a, resulting in multiple PCR polymorphism. The beneficial effects of the present invention are: it can be used to develop diagnostic methods or kits, so that these methods or kits can be used in breeding programs to select pigs carrying favorable alleles, thereby achieving a better selection effect; The Dahe black pig individual containing the AA allele in the LRP10 gene locus can be used as a breeding stock, which can increase the eye muscle area of ​​the offspring of the Dahe black pig and reduce the average backfat thickness.

The invention belongs to the technical field of pork pig feeds, and particularly relates to a Chinese herbal medicine feed additive for preventing and treating digestive tract diseases of pork pigs and a preparation method of the feed additive. The preparation method comprises the steps that semen raphani, unpolished seeds of Job's tears, aucklandia lappa, medicine terminalia fruit and pericarpium citri reticulatae are sequentially subjected to reflux extraction with 60%-90% ethyl alcohol and potable water, extracted solutions are mixed and then are mixed with water extracts of flower of poplar, herba portulacae, the root of Chinese pulsatilla, poria cocos, cortex magnoliae officinalis, atractylodes macrocephala koidz, sophora japonica, gordon euryale seeds, radix astragali, radix codonopsis, radix scutellariae, rhizoma atractylodis, crataegus pinnatifida and licorice root to obtain a mixed liquid, the mixed liquid is concentrated, dried and processed so as to form dry powder, and finally the dry powder is evenly mixed with crushed fried malt powder and Kelp powder and then packaged. According to the Chinese herbal medicine feed additive, the raw materials are scientific and reasonable, the preparation process is high in operability, and the prepared additive is good in palatability, can effectively prevent the digestive tract diseases of the pork pigs from occurring, promotes the productive performances, anti-stress capacity and immunity of the pork pigs, and improves the quality and nutritive value of pork.

The invention relates to a traditional Chinese medicine compound feed for Luchuan piglet, which comprises a feed main material, and the feed main material comprises the following components: corn, soybean meal, wheat, brewer's grains, steam fish meal, flour, baking soda and a liquid enzyme preparation. According to the traditional Chinese medicine compound feed for the Luchuan piglet provided by the invention, traditional Chinese medicine components are added into the feed main material, so that the effects of enhancing the immunity of piglets and regulating the gastrointestinal function of the piglets are achieved, and antibiotics are reduced or even not used.

A composite plant extract as the additive of feed for improving meat quality and promoting growth is prepared from the alkaloid extracted from the plants in lauraceae, leguminosae and chenopodiaceae, saponin and assistant through activating and proportional mixing. Its advantages are high effect on improving meat quality, amino acid and fatty acid contents and delicious taste, and no residual in meat.

The invention belongs to the technical field of molecular biology and molecular markers, and particularly relates to an SNP molecular marker located at a chromosome 16 of a pig and related to the leanmeat percentage and eye muscle area of a pig and application. An SNP locus of the SNP molecular marker located at the chromosome 16 of the pig and related to the lean meat percentage and eye muscle area of the pig corresponds to A>C mutation of the 33,757,844bp of the chromosome 16 of the international pig reference genome of the 11.1 version; the molecular marker is obtained through correlation analysis of a whole genome and can significantly influence the characters of the eye muscle area and lean meat percentage of the pig when the weight of the pig is 100 kilograms. The invention further provides a primer pair used for identifying the molecular marker, by utilizing the molecular marker and the primer pair, an efficient and accurate molecular marker-assisted breeding technology canbe established, the SNP molecular marker is applied to genetic improvement of the characters of the eye muscle area and lean meat percentage of the pig, therefore the eye muscle area and lean meat percentage of the pig are increased, the profit of enterprises is increased, and the core competitiveness is improved.

The invention provides a pig feed. The pig feed comprises 60wt%-75wt% of barley, 7wt%-15wt% of linseeds, 0.02wt%-0.05wt% of enveloped cysteamine, 0.02wt%-0.05wt% of vitamin E and 0.01wt%-0.05wt% of agrado plus. The pig feed provided by the invention does not have significant influence on body shape and meat quality, but can improve meat color, and does not cause significant changes on the amino acid content of organisms; the PUFA deposition of the organisms can be promoted, and the S / U (saturated fatty acid / unsaturated fatty acid) rate can be significantly reduced; the content of alpha-linolenic acid in pork can be significantly increased; omega-3PUFA deposition can be strengthened, the rate of omega-6 to omega-3PUFA can be reduced, and the cholesterol content can be reduced; and the barley is added, so that the pig feed has positive effects on improvement of meat quality. Besides, the invention further provides a key raising method for producing pork products.

The invention discloses a compound premix for improving pork quality, which is prepared by combing a substance containing active components of eight trace elements, a substance containing the active components of several vitamins, an active substance which can increase sweet taste and delicate flavor, obviously improve the appetite of animals and promoting growth of the animals, and a substance serving as a carrier in proportion. Compared with the conventional formula of the premix, the compound premix for improving the pork quality of fattening pigs has the advantages that: besides the traceelements and the vitamins which are necessary in the process of growth of pigs, components for improving the pork quality are added, and the compound premix not only can improve the production performance of the pigs, but also can obviously improve the pork quality. The premix containing the active components can reduce the oxidation of lipids and cholesterol of the pork, and effectively restrainthe accumulation of myoglobin in the pork, so that the stability of ideal red color of fresh meat is increased, and good water binding capacity, taste and smell can be kept because drip loss of the pork is reduced, and total quality of the pork is also comprehensively improved.

The invention discloses a feed additive capable of improving lean meat rate of pigs. The feed additive comprises the following components: whey protein, yeast hydrolysate, probiotics, prebiotics, digestive enzyme, L-carnitine, capsaicine, garlic powder, a green tea extract and a green plum extract. Compared with the existing feed additive, the feed additive capable of improving the lean meat rate of the pigs has the advantages that green, safe and non-toxic effects of all the components are achieved, and the human health is facilitated, and drug residue and food chain transmission can be avoided; after the pigs are fed by the feed additive, the immunity of the organism and the disease resistance of the pigs are improved, the muscle composition and the absorption of fat are improved, the fat of the pigs is promoted to be decomposed, muscle building and weight increment are realized in a healthy state, and the lean meat rate of a pig carcass can be improved; a test for comparing fattening pigs and piglets in the aspects of production performance and meat quality proves that after the feed additive is adopted, the indexes such as the average daily gain of the pigs, the feed conversion ratio, the eye muscle area, the lean meat rate and the muscular tissue are obviously improved, and the indexes such as backfat thickness, diarrhea rate, death rate, drip loss and the like are obviously reduced.