82results about How to "Improve meat performance" patented technology

The invention discloses a selective breeding method for improving meat performance of black goats of Guizhou. The selective breeding method includes the steps of: A, utilizing black goats of Guizhou as female parents, and utilizing adult black goats of Lezhi and adult goats of Boer as male parents; B, hybridizing the adult goats of Boer as the male parents with breeding ewes selected and remained in a generation F1 in an artificial insemination manner, and selecting and remaining breeding ewes from obtained lambs in generation F2 according to the same selecting and remaining method used for the generation F1; C, hybridizing other high-quality black goats of Lezhi as the male parents with the breeding ewes selected and remained in the generation F2 in an artificial insemination manner, and selecting and remaining breeding ewes from obtained lambs in generation F3 according to the same selecting and remaining method used for the generation F1; and D, subjecting breeding rams selected and remained in the generations F1-F3 and breeding ewes selected and remained in the generation F3 in an artificial insemination manner to intersect-breeding. By the selective breeding method, weight of six-month and one-year-old black goats of Guizhou is remarkably increased, and original dressing percentage of the one-year-old ewes is increased from 47.4% to 49.2%.

The invention provides a beef cattle breeding method. The beef cattle breeding method comprises the following steps that firstly, beef cattle of improved variety are selected; secondly, cows are raised; thirdly, a breeding method is conducted, wherein a, estrus induction is conducted on the cows close to the estrus, the cows are observed very carefully early in the morning and at nightfall, and observation is conducted every 4-5 hours in the daytime for estrus situation identification, and an outer observation method and a rectal palpation method for the follicular development degree are adopted as the estrus situation identification method, and b, artificial fertilization is conducted through a rectum grasping semen deposition method at estrus stage III; fourthly, the cows are kept under the precious care as long as pregnancy is confirmed according to the situation that the cows are not in estrus any longer within two to three months after semen deposition, or through rectum pregnancy check so that the cows can breed healthy calves, and if false pregnancy is found, re-copulation measures are taken in real time to reduce the breeding loss. By means of the method, the physique of the cows is improved, and the breeding rate of the beef cattle is further increased through estrus induction.

The invention provides a preparation method of carboxymethyl pachyman and a novel application of the carboxymethyl pachyman. According to the method, in the process of carrying out carboxymethylation modification on pachymaran, components and ratios of a reaction medium are changed, the reaction temperature is regulated and a catalyst process is adopted, so that the carboxymethylation efficiency of the pachymaran is remarkably improved, the utilization rate of the raw and auxiliary materials is increased, and the cost is saved. Meanwhile, by virtue of the novel application of the carboxymethyl pachyman prepared by the method to preparation of immunopotentiators of livestock and poultry, the immunity to pathogenic microorganisms of the livestock and the poultry can be remarkably enhanced, and the immune efficacy of vaccines can be improved; by virtue of the novel application of the arboxymethyl pachyman prepared by the method to feed additives, the meat performance of the livestock and the poultry can be effectively improved.

The method for breeding black rabbit includes the following steps: using local chesnut black male rabbit as male parent and using New Zealand female rabbit as female parent, makiing hydribization or artificial fertilization to obtain first-generation hybrid rabbit species, selecting excellent male rabbit and female rabbit to make direct cross or artificial fertilization to obtain second-generation hybrid rabbit species, then adopting similar method to obtain third-generation and fourth-generatin hybrid rabbit species, and utilizing fourth-generation male rabbit and female rabbit to make breeding. Said nvention adopts granular feed containing Chinese herbs of isatis leaf, lonicera flower, wild chrysanthemum flower and stemona root.

The invention relates to a hu-sheep breeding method in a subtropical area. The method is characterized by comprising the steps of sheep pen building, mating and reproducing, lamb managing, managing in a fattening period and pest and disease controlling. Lambs enter a lamb period to be managed after hu-sheep give birth to the lambs, and 60-day-age lambs can be put into a sheep pen to be bred; managing in the fattening period is performed, the lambs are fed for 2-3 times every day with feed, and the weight can be more than 70 kg when the lambs are bred for 8 months. According to the hu-sheep breeding method in the subtropical area, the hu-sheep breeding cost can be lowered, and the adaptability of the hu-sheep in the subtropical area, especially in the Guangxi area, can be improved; the reproductive performance, meat performance and hair performance of the hu-sheep can be significantly improved; the advantages of being small in breeding risks, short in breeding cycle, high in benefits and the like are achieved, and a basis is established for large-scale hu-sheep breeding in the Guangxi area.

The invention discloses a molecular marker method for breeding meat performance of Altay sheep and application thereof. The molecular marker method comprises the following steps: using a MyoD1 (Myogenic Determination) gene as a candidate gene which influences meat yield of the Altay sheep; detecting a genetic structure of the MyoD1 gene in the Altay sheep variety by utilizing a PCR-SSCP (Polymerase Chain Reaction-Single-strand Conformation Polymorphism) technology; analyzing and judging a correlation between the genetic structure of the MyoD1 gene and the meat yield of the sheet; by a DNA (Deoxyribose Nucleic Acid) sequence of the MyoD1 gene of the sheet, self-designing two pairs of specific primers; carrying out polymorphism detection on the MyoD1 gene of the Altay sheep in Sinkiang province by utilizing the PCR-SSCP technology; and carrying out correlation analysis with meat performance so as to find a molecular marker which is obviously related to the meat yield of the Altay sheep. The molecular marker method is used for improving meat performance of the Altay sheep to greatly improve the speed of improving and recovering excellent meat performance of the Altay sheep and has important significance and practical application value for improving economic income of farmers and herdsmen and quickening development of the mutton sheep industry in Sinkiang province.

The invention discloses a plant feed additive which is characterized by comprising the following main drugs in parts by weight: 2-10 parts of radix astragali, 10-35 parts of cowherb seed, 5-15 parts of beautiful sweetgum fruit, 10-40 parts of dandelion, 1-10 parts of liquorice, 5-20 parts of ricepaper pith, 3-8 parts of cortex acanthopanacis and / or leaf, 5-12 parts of angelica, 5-25 parts of radix paeoniae alba and 2-15 parts of angelica decursiva. The plant feed additive is applied to the feeding of the postpartum mammals or the growing-period mammals and has the functions of promoting the lactation and improving the meat quality.

The invention discloses a recombinant Tibetan sheep myostatin protein. In the invention, a Tibetan sheep myostatin (MSTN) coding gene is cloned, the gene is used as a template for polymerase chain reaction (PCR) amplification, the bioactive region of the MSTN coding gene is cloned, a recombinant expression vector is constructed, the cloned bioactive region is transferred into Escherichia coli to construct gene engineering bacteria, and the gene engineering bacteria are subjected to isopropyl thiogalactoside (IPTG) induced expression and purification of MSTN protein. Then the MSTN protein is used to actively immunize a domestic rabbit to prepare polyclonal antibody serum, and an indirect enzyme-linked immuno sorbent assay (ELISA) is used to detect the immunogenicity of the MSTN protein. The recombinant Tibetan sheep MSTN protein is used to immunize a mouse actively so as to detect the influence of the recombinant MSTN protein on the growth of the mouse. The purity and immunogenicity of the recombinant Tibetan sheep MSTN protein provided by the invention are high, and the actively immunizing MSTN protein can obviously increase the diameter and area of muscle fibers of the mouse and promote the muscle fibers to increase. Thus, the recombinant Tibetan sheep MSTN protein can be used for active immunizing of Tibetan sheep and help to accelerate the growth of Tibetan sheep and to improve meat performance.

The invention discloses a breeding method of a new variety of a sheep with high fecundity. The breeding method can mainly solve the problem of insufficient quality character of the existing sheep meat of our country at present, and thereby the economic benefit of breeding the mutton sheep is obviously improved. The key point of the technical scheme is: a set of autonomous, high-efficient and perfect breeding method of the new variety of the sheep with high fecundity is set up from a complex hybridization technique by fully using two genetic resources at home and abroad and applying classic number of quantitative genetics and technologies.

The invention provides a yak fattening method and relates to the technical field of yak breeding. The method includes the following steps that after to-be-fattened yaks are subjected to parasite expelling, the yaks are subjected to stomach invigoration, and grazing is carried out on a pasture in summer or autumn; after grazing, licking blocks are supplied to the yaks, and supplementation of concentrated fodder is conducted, wherein the pasture time is 12 hours per day or above, and the supply number of the licking blocks is 60-90 g per day for each yak. By means of the method, the fattened yaks can be put into the market in the middle of October, consumption of forage for overwintering of the yaks is avoided, fat loss in freezing winter is avoided, the purposes of saving resources and protecting the ecology are achieved, and meanwhile, the average income increase of the flattened yaks reaches 1500 yuan or above, so that the method has extremely high economic benefits.

The invention discloses a beef cattle breeding method. The beef cattle breeding method comprises the steps that fine and coarse feed nutrition regulation and rail rotation feeding are carried out in month age stages according to the growth periods of beef cattle, wherein according to rail rotation feeding, one group of cattle are fed in every two adjacent small rails, five cattle are included in each group, the other rail is empty while cattle are fed in one rail, rotation of the rails is carried out once every 7.5 days according to the humidity condition of the ground padding of the rails, and the operation circulates in the whole feeding process until fattening of beef cattle is completed for slaughter finally. According to the beef cattle breeding method, the meat performance of high-grade beef cattle is improved with the methods of nutrition regulation, animal welfare improvement and the like.

The invention relates to a yellow-feathered broiler breeding method which is characterized in that the second generation is bred in the following steps that: 0-day: chicks which are lighter than the average weight, have variegated feathers or blue foot skin are eliminated; 10-day: individuals which do not have tail, and have variegated feathers or blue foot skin are eliminated; 10-week: individuals which are lighter than the average weight, have variegated feathers or blue foot skin are eliminated; and 18-week: cocks which have the crown height lower than 3cm, chest expansion angle smaller than 60 degrees, tibial diameter smaller than 1.2cm or blue foot skin, and hens which have pale face, lack energy, and have the tibial diameter smaller than 1cm and blue foot skin or bend toes are eliminated. The yellow-feathered broiler breeding method can make the chicken performance progress for generations and not degenerate for a long time.

The invention discloses a method for raising a novel strain of meat sheep. The method includes carrying out crossing on Hu sheep and Australian white sheep to obtain a first crossed generation of flock of sheep; carrying out crossing on high-quality ewes of the first crossed generation of flock of Australian-Hu sheep and Charolais sheep to obtain a second crossed generation of flock of sheep; carrying out athwart crossing and fixation on the second crossed generation of flock of sheep; appropriately introducing 'new blood' into the second crossed generation of flock of sheep to prevent inbreeding depression; ultimately raising the novel strain of meat sheep by means of strict feeding and management and ideal typical individual selection. The Hu sheep is used as a female parent, and the Australian white sheep is used as a male parent. The high-quality ewes of the first crossed generation of flock of Australian-Hu sheep are used as female parents, and the Charolais sheep is used as a male parent. The invention further discloses matched fattening fodder for raising the novel strain of meat sheep. The method and the matched fattening fodder have the advantages that diarrhea of lambs in weaning periods can be reduced by the aid of the fodder, body physiological functions of the sheep, the growth rates of the sheep in later periods and fodder digestion and utilization can be improved, the method and the matched fattening fodder are matched with modern genetic breeding and reproducing techniques, and accordingly the novel strain raising success rate can be effectively increased; the meat performance of the novel strain of the meat sheep raised by the aid of the method and the matched fattening fodder can be improved on the basis that the high reproductive capacity of a variety of the Hu sheep is maintained.

The invention discloses a breeding raising method for meat sheep. The method is characterized by comprising the steps: by taking poll dorset sheep as a male parent and small tailed han sheep as a female parent, carrying out hybridization, wherein the propagative technologies mainly comprise estrus control, hormone treatment, biological stimulation, vaginal sponge method and prostatic hormone method to promote superovulation, a tit double-lamb agent or a twinborn-medicament, which is an aqueous agent and an oil agent, is adopted; 1 ml of the aqueous agent is subcutaneously injected into the neck of each of the male sheep once in 5 weeks and 2 weeks before mating; and 2 ml of the oil agent product is intramuscularly injected at the buttock in 2 weeks before mating. Twins and polyembryony are induced. Fundamental hybridization improvement is carried out from biological characteristics, artificial raising environment selection, raising variety selection, propagative technical improvement, raising feed research, fattening management technologies and disease diagnosis, prevention and treatment, and the meat sheep variety is bred, so that implementation of industrialization of the meet sheep is promoted.

The invention discloses a method for breeding a new hybrid strain of Qianbei-pockmarked goats. According to the method, a Qianbei-pockmarked goat and a Boer goat are adopted for hybridization, then the advantage that the Boer goat is high in meat yield is taken, and thus the growth speed and the meat yield of a hybrid goat can be increased. However, as the meat of the Boer goat is poorer than that of the Qianbei-pockmarked goat, on the basis that Qianbei-Boer pockmarked goats are obtained, the meat is improved by introducing the Qianbei-pockmarked goat which is different from a hybrid female parent, and finally a target strain of the Qianbei-Boer pockmarked goats can be obtained through transverse fixed mating of the Qianbei-Boer pockmarked goats. As the Qianbei-Boer pockmarked goats have genes of high meat yield and rapid growth of the Boer goats and local characteristic genes of the Qianbei-pockmarked goats, the characteristics that the Qianbei-pockmarked goats are low in meat yield and slow in growth are overcome, the meat yield and the growth speed can be increased, the meat is tender, tasty and juicy, and thus economic and feeding values can be increased.

The present invention discloses a hybridization method for improving the porcine intramuscular fat content. The method comprises steps of: hybridizing a Luchuan boar and a Duroc sow to produce generation zero swines consisting of Luchuan+Duroc crossbred swines, wherein the generation zero swines have 50% of Luchuan descent and 50% of Duroc descent; and then performing crossbred fixing and closed-flock breeding on the generation zero swines, and fattening feeding selected offspring. The intramuscular fat content of fattened swines is significantly higher compared to that of purebred Duroc swines and crossbred Duroc swines, and is closer to that of Luchan swines. The lean rate of Luchuan+Duroc crossbred commercial swines produced by using the method of the present invention is above 53%, and intramuscular fat content is higher than 7%.

The invention belongs to the technical field of breed duck breeding, and particularly relates to a breeding method capable of increasing a meat production property of breed ducks. The breeding method comprises the following steps: (1) daily feeding of breed ducks; and (2) illumination regulation of duck house. Meat production feed are fed cooperatively with complementary feeding of a trehalose water solution, so that normal microbial flora in intestinal tracts of the feed ducks is supplied in quantity and variety; microbial ecosystem balance in the intestinal tracts is regulated and maintained; a variety of enzymes and vitamins are generated; utilization rate of the fertilizer by animals is increased; digestion, absorption and utilization of fat is increased; immune globulins inside the feed ducks are increased, so that immune functions of the immune globulins are increased; the occurrences of intestinal diseases of the animals are decreased; habitus of the feed ducks are enhanced; and robust growth of the feed ducks is promoted. Illumination regulation and treatment are performed, so that absorption rate of nutrients by bodies is effectively promoted; stress ability of the feed ducks is increased; activities of the feed ducks are promoted; activity amount of the feed ducks is increased; and the meat production property of the breed ducks is greatly increased.

Fermented feed improving meat production performance of goat and a preparing method thereof are disclosed. The method includes fermentation substrate preparation, bacterial liquid culturing, a first time of fermentation, a second time of fermentation and feed preparation. Compared with the prior art, the fermented feed and the method are advantageous in that a plurality of different crop by-products are adopted as raw materials of the fermented feed, and therefore the feed source is enriched, feed nutrition is made balanced, the feed is rich in digestible crude protein and coarse fibres, vitamins, trace elements and a plurality of volatile fatty acids in the feed are enriched, and palatability and nutrition value of the feed are improved; the different raw materials of the feed are separately treated so that the raw materials can be fully utilized; the meat production performance of the goat is greatly improved; goat meat quality is improved; effective utilization of the agricultural by-products is achieved; and environment pollution is reduced.

The invention belongs to the technical field of hybrid broussonetia papyrifera, and particularly relates to a hybrid broussonetia papyrifera silage, a preparation method of the hybrid broussonetia papyrifera silage, a coarse feed and a hybrid broussonetia papyrifera feed. The hybrid broussonetia papyrifera silage is prepared from the following preparing raw materials including hybrid broussonetiapapyrifera, corn flour, molasses, urea and a microbial agent, wherein the mass ratio of the hybrid broussonetia papyrifera to the corn flour to the molasses to the urea to the microbial agent is 100:10:(2-4):0.5:2, and the microbial agent comprises lactobacillus buchneri and lactobacillus plantarum. The hybrid broussonetia papyrifera is fermented to serve as an unconventional feed source, so thatthe use of conventional feed is reduced, the growth performance of ruminants is reduced, and the meat production performance and immune performance are improved.

The invention discloses an SEC61A1 gene-containing detection kit for improving Altay sheep meat production performance. According to the SEC61A1 gene-containing detection kit disclosed by the invention, a specific primer is self and artificially designed according to an mRNA sequence of a sheep SEC61A1 gene, a forward primer is 5'-TATGTGATGACGGGAATGT-3', a reverse primer is 5'-GGTCTCGCAGATGTTAGTG-3', sample genome DNA is utilized as a template to perform PCR proliferation, fluorescence quantitative PCR detection is performed on a PCR proliferation product, correlation analysis between gene expression quantity and intramuscular fatty acid content, moisture content and meat weight is performed. The SEC61A1 gene-containing detection kit disclosed by the invention not only fills the blank of the research field at home and abroad, but also establishes basis for protecting Altay sheep good stock resources and promoting reasonable development of the stock resources and meanwhile has importantsignificance and actual application valve in quickening Sinkiang mutton sheep industry development and improving high-quality mutton production level.

The invention discloses a fermented feed suitable for Huanghuai goats and a preparation method of the fermented feed. The preparation method comprises the following steps of preparing fermentation substrates, culturing bacterial liquid, performing primary fermentation, performing secondary fermentation and preparing the feed. Compared with the prior art, the fermented feed and the preparation method thereof disclosed by the invention have the following advantages that various different kinds of crop by-products are selected as raw materials of the fermented feed, so that the sources of the feed are enriched, the feed is balanced in nutrition and rich in digestible crude protein, and vitamins and trace elements are also enriched; various volatile fatty acids are contained, so that the palatability and the nutrient value of the feed are improved; different raw materials of the feed are separately treated, so that the raw materials can be fully utilized, the meat yield properties of the goats are greatly improved, the dressing percentage can reach 48.6%, fells are fine, soft, oleosus, bright, and good in elasticity, effective utilization of agricultural and by-product crops is realized, and environmental pollution is reduced.

The invention discloses a calf beef producing property improving method, which comprises the following steps: 1) injecting expressive plasmid of growth hormone releasing factor gene in the calf musculus semitendinosus positing, 2) setting the fitful agent quantity at 5-7mg per calf, 3) adopting the density of injection dilution liquid of expressive plasmid at 0.25% bupivacaine PSS, 4) improving beef producing property without influencing quality and safety.

The invention belongs to the technical field of ruminant breeding, and particularly relates to a method for breeding a new hybrid strain of Boer goats and Beichuan white goats. The method for breedingthe new hybrid strain of the Boer goats and the Beichuan white goats is good in meat production performance, high in meat yield and high in growth speed. The method comprises the following steps: (1)taking a Boer goat as a male parent and a pure Beichuan white goat as a female parent, and hybridizing to obtain a F1-generation Bobei binary goat; (2) taking the F1-generation Bobei binary goat as an ancestor male parent, and taking a pure Beichuan white goat different from the pure Beichuan white goat in the step (1) as a female parent to obtain F2-generation Beichuan hybrid white goat; and (3)fixing the F2-generation Beichuan hybrid white goat obtained in the step (2) through three generations of crossbreeding to obtain the Beichuan white goat hybrid new strain. The goats bred by the method disclosed by the invention are high in growth speed, good in meat production performance and high in meat yield, and meanwhile, the new strain is fine and tender in meat quality and delicious and juicy in taste, so that the economic and feeding value is guaranteed.

The invention discloses a COL1A1 (collagen type 1 alpha1) gene-containing detection kit for improving Altay sheep meat quality trait. A specific primer is self and artificially designed according to an mRNA sequence of a sheep COL1A1 gene, an upstream primer is 5'-TACAGCGTCACCTACGACGG-3', a downstream primer is 5'-AAGCCGAATTCCTGGTCTG-3', sample genome DNA is utilized as a template to perform PCR proliferation, fluorescence quantitative PCR detection is performed on a PCR proliferation product, correlation analysis between gene expression quantity and intramuscular fatty acid content, moisturecontent and longissimus dorsi shear force is performed, and the COL1A1 gene-containing detection kit disclosed by the invention is shown to have better specificity to the Altay sheep. The COL1A1 gene-containing detection kit disclosed by the invention not only fills the blank of the research field at home and abroad, but also has important significance and actual application value in protecting Altay sheep good stock resource development, establishing molecular theory basis for sustainable utilization and quickening Sinkiang mutton sheep industry development.

A breeding method of Dongbao blackhead sheep includes: subjecting Boer goats as male parents and Macheng black goats as female parents to hybridization, and performing cross breeding, positive assortative mating and population subculture breeding to obtain Dongbao blackhead sheep. The breeding method has the advantages that the Dongbao blackhead sheep bred by the method are uniform in appearance and shape, lambing rate is high, meat of the Dongbao blackhead sheep has no smell, and meat performance is high. The Dongbao blackhead sheep are significantly better than Macheng black goats in growth and meat performances, and are better than Boer goats in reproductive performance, crude feed tolerance, disease and stress resistance and the like.

The invention relates to a new prolificacy strain cultivation method for Xuhuai goat meat.The method comprises the steps that on the basis of carrying out genetic determination and evaluation on individual muscle growth and development traits and reproductive performance, a conventional breeding method is utilized in cooperation with molecular marker-assisted selection (MAS) and a multi-gene pyramiding breeding composite system, individuals with the high growth speed and good carcass meat performance are selected to cultivate a high-quality paternal group, individuals with prolificacy, strong maternity and good lactation ability are selected to cultivate an ideal maternal group, a core group is built, and the new prolificacy strain with the high meat performance and reproductive performance for Xuhuai goat meat is cultivated.

The invention belongs to the technical field of food auxiliary materials and food auxiliary material processing, and particularly relates to an animal nutrition reinforcer which has the blood replenishing and blood activating effects and is called cerebrolysin for short. The cerebrolysin contains glycine-iron, iron methionine, ferrous fumarate, ferrous sulfate, Vb12, folic acid, hemin, cobalt sulfate and the like. By means of contained heme iron mainly obtained from animal-derived components and non-heme iron obtained from plant components and cofactors, iron supplementation is more balanced and stable, easier to absorb and use and not likely to be affected by external factors.

The invention discloses a method for producing functional mutton by utilizing flaxseed feed. Fattening lambs are fed with the feed containing 8 percent of flaxseed at an appropriate time before the slaughtering, so that the mutton production performance of the lambs can be improved, and the production of high-quality mutton can be promoted; and when the fattening lambs are fed with 8 percent flaxseed feed 42 days before the slaughtering, the production performance of the fattening lambs can be improved, CLA, ALA, EPA and DHA as well as n-3 PUFA and total fatty acid content in the mutton can be increased, and the mutton quality can be improved. By adopting the method for producing the functional mutton by utilizing the flaxseed feed, the fattening lambs are fed with 8 percent flaxseed feed at an appropriate time before the slaughtering, high daily increased weight and high weight after the test can be obtained, the mutton production performance of the lambs is improved, and the production of high-quality mutton can be promoted; and when the fattening lambs are fed with 8 percent flaxseed feed 28d and 42d before the slaughtering, not only can the production performance of the fattening lambs be kept, but also excellent mutton quality can be obtained. The content of CLA, ALA, EPA, DHA, N-3 PUFA and total fatty acid in the mutton can be increased, the mutton quality can be improved, and the production of the functional mutton can be promoted.

The invention discloses a method for cultivating a goat of a new variety by hybridizing a qianbei ma goat and a Nubian goat. According to the method for cultivating the goat of the new variety by hybridizing the qianbei ma goat and the Nubian goat, good performance of mutton production and a high yield of mutton of the Nubian goat can be introduced by hybridizing the qianbei ma goat and the Nubiangoat, and meanwhile since the Nubian goat has the advantages of rapid growth, large weight of a grown goat and the like, the speed of growth and development, yield of the mutton and mutton productionperformance of the Nubian-qianbei hybridized goat which is cultivated by hybridizing the qianbei ma goat and the Nubian goat can be improved; however, since the mutton quality of the Nubian goat is poorer than that of the qianbei ma goat, the meat quality is improved by introducing another qianbei ma goat variety which is different from the variety of the hybridized parent qianbei ma goat on thebasis of obtaining the Nubian-qianbei hybridized goat, and finally the goat of the target variety can be obtained through transverse fixed mating of the Nubian-qianbei hybridized goat.

The invention discloses a lotus leaf extract feed additive for aquaculture and a manufacturing method of the lotus leaf extract feed additive for aquaculture. The lotus leaf extract feed additive foraquaculture is prepared from, by weight, 0.2-0.3 parts of insoluble lotus leaf alkaloid, 1.5-2 parts of lotus leaf flavones, 0.02-0.04 part of phytic acid, trace ammonium chloride, 3-4 parts of vegetable oil and 15-20 parts of river silt. Compared with the prior art, the lotus leaf extract feed additive for aquaculture has advantages of aquatic product meat quality improvement, aquatic product immunity improvement, extensive sources, high palatability and wide application range.