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36 results about "Meishan pig" patented technology
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The Meishan is a breed of domestic pig named for the Chinese prefecture of Meishan. It is a sub-group of the Taihu pig and is a small to medium-sized (275-400 lbs) breed with large drooping ears, and wrinkled black skin. Meishan Pigs are extremely docile and renowned for their tender and flavorful red meat pork.
Method of domesticating wild purebred male swine to crossbreed with tamed swine and producing novel variety
It relates to a method of cultivating and breeding new animal species, and especially a method of cultivating and breeding new pig species. The method includes the steps as below. First, domesticating the boars, creating the Domestication environment and feeding the boars with favorite feeding stuff. Second, selection of boars, that is, through genetic analysis, selecting the Duroc and the Meishan pig as the pig races of mating cultivate agnate female parent and matrilineal maternal. Third, mating and breeding, that is, across mating fixedly the young animal generation, and selecting and seeding for generations. Four, Rearing technique, that is, feeding with green grass and roughage principally.
Owner:宁波南方野生动物养殖有限公司
SNP (single nucleotide polymorphism) marker combination and identification method of small Meishan pig and raw meat product
ActiveCN107699624AEasy to operateMicrobiological testing/measurementDNA/RNA fragmentationBiotechnologyRaw meat
The invention provides an SNP (single nucleotide polymorphism) marker combination and identification method of a small Meishan pig and a raw meat product. The method comprises the following steps: extracting a genome DNA of raw pork or a meat product, performing AGE (agarose gel electrophoresis) and Sanger sequencing after performing PCR (polymerase chain reaction) amplification on the genome DNA,and identifying the small Meishan pig and the meat product thereof according to an SNP genotype of a characteristic site of a sequencing result, wherein in the step of Sanger sequencing, peculiar mutation occurs at identified sites: SNP6, SNP12, SNP16, SNP71 and SNP79. According to the method, the problem that an identification method of the small Meishan pig and the meat product thereof does notexist in the prior art is solved.
Owner:SHANGHAI JIAO TONG UNIV
Molecular marking method for indicating and identifying litter size in pigs by MMP23 gene
InactiveCN101440399AGood choiceMicrobiological testing/measurementFermentationNucleotideLong segment
The invention aims to provide a detection method for searching the genetic mutation sites of porcine MMP23 and the genetic polymorphism, namely, the molecular marking method for speculating and identifying the litter size with MMP23. The invention provides the sequence of genomic nucleotides with a length of 482bp including the exons 2, 3 and 4 and the introns 2 and 3 of the porcine MMP23 gene of large white sows, Meishan pigs and Qingping pigs, and provides the single nucleotide polymorphism (SNP) of at two sites situating in the interior of the proliferated 482bp-long segment. The method provided by the invention can be used for developing diagnostic procedures or kits used for selecting the pigs carrying the advantageous alleles in breeding programs with better selective outcome.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY
Breeding method for improving lean meat percentage of Meishan pigs
InactiveCN102742545ADaily weight gainImprove lean meat percentageAnimal husbandryBiotechnologyIntramuscular fat
The invention relates to a breeding method for improving the lean meat percentage of Meishan pigs and belongs to the field of animal genetic breeding. A Danish landraces as a male parent and a Meishan pigs as a female parent are hybridized in a three-way mode. Offspring breeding standards comprise the following standards: clothing hair is white, the total number born is larger than 14, the lean meat percentage is larger than 55%, and the daily gain is more than 630g. Suzhong pig generation II bred by the breeding method retains the characteristics of high total number born, good meat quality (intramuscular fat is larger than 3%), coarse feed resistance and easy feed of the Meishan pigs, the daily gain is increased to 634.74 grams from 439 grams and is increased by 44.59%, and the lean meat percentage is increased to 54.49% from 42.8% and is increased by 27.31%. The characteristics of fast growth, high lean meat percentage, and the like of the landraces are also retained, the total number born is increased to 14.24 from 11 and is improved by 29.5%, and the meat quality is also improved obviously.
Owner:JIANGSU ACAD OF AGRI SCI
Cross-breeding method for commercial pigs possessing Meishan pig blood lineage and Berkshire pig lineage
The invention discloses a cross-breeding method for commercial pigs possessing Meishan pig blood lineage and Berkshire pig lineage. The cross-breeding method comprises the steps of cross-breeding Meishan pigs with Berkshire pigs to breed commercial pigs, or cross-breeding later generations bred by Berkshire boars and Meishan sows with the Meishan boars to breed commercial pigs. The Berkshire pig lineage of foreign pig variety is introduced to appropriately improve the growth speed and lean meat percentage of the cross-bred commercial pigs while an excellent meat quality characteristic and a reproductive characteristic of the Meishan pigs are kept. The growth speed of the commercial pigs is 480 g-600 g every day, the lean meat percentage of each slaughtered pig which is about 80 kilogram ranges from 45% to 55%, the feed conversion rate is 3.3-3.8: 1, the meat color grade ranges from 3.0 to 4.5, and the intramscular fat content ranges from 3.5% to 5.0%.
Owner:昆山市畜牧兽医站 +2
Breeding method for Sumei black pigs
The invention discloses a breeding method for Sumei black pigs. The method comprises the following steps that firstly, parents are selected, wherein Meishan pigs and Berkshire pigs are selected to serve as the parents for hybridization, and a first Sumei generation is obtained; secondly, a first generation candidate pig group is obtained, wherein a certain scale of the first Sumei generation pigs are selected, a foundational group is built, and the first generation candidate pig group is obtained; thirdly, the Sumei black pigs are obtained, wherein boars and sows in the first generation candidate pig group randomly mate, and breeding pigs are reserved from the obtained first farrow, and the second generation is built by the boars and sows in the breeding pigs; the following generations can be done in the same manner, continuous progeny breeding can be conducted in a closed small group, after selection and breeding of 3-5 generations, then group expanding and popularization are conducted, and the Sumei black pigs with stable inheritable characters are obtained. On the basis that closed continuous progeny breeding is conducted on a traditional building group, combined with the molecular marker technology and the BLUP estimated breeding value method, individual stallion and progeny selection can be effectively carried out, a scientific basis is provided for variety breeding, and the pertinence and accuracy of progeny selection and reserving are improved.
Owner:JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
Method for breeding high-quality pig complete set line by aid of Tibetan pigs
The invention discloses a method for breeding a high-quality pig complete set line by aid of Tibetan pigs. The method includes steps: (1) the Tibetan pigs and Meishan pigs serve as breeding materials to breed a synthetic line, namely a Tibetan-Meishan synthetic line, and the Tibetan-Meishan synthetic line serves as female parents of the complete set line; (2) Berkshire pigs serve as the first male parents of the complete set line, the Tibetan-Meishan synthetic line serves as the female parents, and sows of the parents' generation of the complete set line are obtained after hybridization; (3) durocs serve as terminal male parents to be hybridized with the sows of the parents' generation to obtain high-quality commercial pigs of the complete set line. Pigs in the complete set line bred in the method are identical in body forms and appearances, hair on the whole pig bodies is black, and brown pigs and white pigs are few; heads of the pigs are light, mouths of the pigs are straight, and ears of the pigs are median in size; backs and bellies of the pigs are flat and straight, body and limb combination is good, and legs and buttocks are well developed. The meat quality is good, production efficiency is high, weight of the pigs can reach 90 kg at 187.22 days of age, the feed conversion rate is 3.14, the lean meat percentage is 57.72%, and the intramscular fat content is 4.07%.
Owner:铁骑力士食品有限责任公司
Commercial pork pig multiple crossbreeding method
The invention discloses a commercial pork pig multiple crossbreeding method. The method comprises the following steps of A) taking Pietrain pig with non-halothane allogene as the first male parent of multiple crossbreeding and Meishan pig as the first female parent of multiple crossbreeding for hybridization to obtain Pietrain-Meishan-crossed hybrid pig; B) taking Duroc pig as the second male parent of multiple crossbreeding and the Pietrain-Meishan-crossed hybrid pig as the terminal female parent of multiple crossbreeding for hybridization to obtain commercial pork pig. According to the commercial pork pig multiple crossbreeding method, the average litter size of multiparity sow of the first female parent of multiple crossbreeding is not less than 14.5; the hybrid high-quality commercial pork pig obtains an average daily gain up to more than 680 g / d (gramme per day) and a lean meat rate up to more than 64% and a feed conversion rate as little as 2.75, avoids PSE (pale-soft-exudative) meat and obtains an intramuscular fat percentage up to 2.5%.
Owner:SHANGHAI XIANGXIN ANIMALS & FOWLS +1
Genetic marker using pig MLC(myosin light chain)2 5' flanking promoter region SNP (single nucleotide polymorphism) as pig carcass traits and application
The invention belongs to the technical field of pig molecular marker preparation and particularly relates to a genetic marker using pig MLC(myosin light chain)2 5' flanking promoter segments as pig carcass traits as well as a preparation method and application of the genetic marker. The genetic marker has the nucleotide sequence shown as SEQ ID NO (sequencer identifier number):1 and SEQ ID NO:2 in a sequence table. One A / G mutation and one G / A mutation respectively exist at the 53bp part of the sequence shown as SEQ ID NO:1 and SEQ ID NO:2, and the polymorphism of DraIII-RFLP is caused by the allele mutation. The genetic marker is used for carrying out pig carcass traits correlation analysis on large white pig and meishan pig F2 generations, and the transcriptional activity of promoters in different genotypes is detected. The invention also discloses a parting detection method of the genetic marker, and the novel genetic marker and the detection method are provided for the pig carcass traits molecular marker auxiliary selection.
Owner:HUAZHONG AGRI UNIV
Selection method of Taihu pigs
ActiveCN104255658AUniform coat colorConservation of heritabilityAnimal husbandryFengjing pigReciprocal cross
The invention discloses a selection method of Taihu pigs and belongs to the field of animal breeding. Reciprocal cross is performed on measly pigs, Meishan pigs, Fengjing pigs and Erhualian pigs from the TaiHu lake area, thus heterosis is expanded, a breeding line of Meishan pig-measly pig-Erhualian pig-Fengjing pig is established, and a breed which is high in reproductive performance and stable in heritability is selected. Compared with the Taihu pigs without hybrid cross such as Meishan pigs, the Taihu pigs subjected to the reciprocal cross are high in total number born and number born alive, the defect brought by selfing of the Taihu pigs is overcome, the heritability of the reproductive performance of local pigs in China is maintained, and a special high-quality female parent specialized line is provided for pig production and breeding industry.
Owner:JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
Traditional Chinese medicine feed additive for improving immune function of pigs as well as preparation method and application of additive
ActiveCN105124159AEnhance immune functionIncrease total proteinAnimal feeding stuffTotal proteinFeed additive
The invention discloses a traditional Chinese medicine feed additive for improving immune function of pigs as well as a preparation method and application of the additive. The additive is prepared from the following components in parts by weight: astragalus membranaceus, fructus alpiniae oxyphyllae, Chinese yam, endothelium corneum gigeriae galli, poria cocos, hawthorn, pinellia ternate, rhizoma atractylodis, ginger, fructus amomi and liquorice. The preparation method comprises the steps of drying, smashing, screening and uniformly mixing the raw materials by adopting a traditional Chinese medicine production device to prepare, adding a prepared traditional Chinese medicine preparation into basic ration of a small healthy Meishan pig of 60 days, uniformly blending to feed, and carrying out free choice feeding and free water drinking. Upon verification of tests, the method can obviously improve the concentration of total protein and albumin in porcine serum; can significantly improve the content of immune globulin IgG and the content of a complement C3 in the porcine serum; obviously improves the antibody level of post-inoculation swine fever; increases the pig spleen indexes. Moreover, the defects of various chemicals and antibiotics feed additives are overcome, toxic and side effects and drug residues do not exist, and the body immune function is improved while the production of green and high-quality animal products is guaranteed.
Owner:HUNAN TAIFENG ANIMAL PHARMA
Fusion promoter efficiently expressed in pig muscular tissues
InactiveCN103421787AHigh activityPromote generationVector-based foreign material introductionDNA/RNA fragmentationAgricultural scienceNucleotide
The invention particularly relates to separation identification for a fusion promoter efficiently expressed in pig muscular tissues. According to the invention, cloning deletion segments of 4 different promoters on the upstream of an MEF2C gene of a Meishan pig, constructing the segments into a pGL3-Basic carrier and confirming the activity, wherein the activity of pGL3-MEF2CP3 is relatively stronger, and the nucleotide sequence of the promoter is as shown in SEQ ID NO:1. By replacing a luc segment of the pGL3-Basic carrier to be in sequence of PPAR gama CDS, the nucleotide sequence is as shown in SEQ ID NO:2 to construct a fusion promoter carrier pGL3-MEF2CP3-PPAR gama; the expression of the PPAR gama is improved through the verifications of both semiquantitative PCR and protein imprint.
Owner:HUAZHONG AGRI UNIV
Meishan pig estrus monitoring method based on acoustic information
InactiveCN109479750ARealize automatic non-destructive monitoringImprove monitoring efficiencyOther apparatusDeep belief networkPig farms
The invention belongs to the technical field of animal estrus monitoring, and particularly relates to a meishan pig estrus monitoring method based on acoustic information. The method comprises the steps that a meishan pig estrus acoustic signal and the sound made by the sniffling, eating, screaming, mumbling and ear moving of other pigs in a pig farm environment are firstly collected, pre-processing is conducted on the pig acoustic signal through multi-window spectrum Wiener speech enhancement based on wavelet thresholding and double-threshold end-point detection based on short-time energy, and the denoising and effective signal detection of pig acoustic signal are achieved; the time-and-frequency domain features of the pig acoustic signal are analyzed by using a time-and-frequency analyzing method and a short-time analyzing technology, 1352-dimension of meishan pig acoustic features in total of 300-dimension short-time energy, 300-dimension short-time zero crossing rate, 32-dimensionsub band frequency range energy ratio based on six-layer wavelet decomposing and 720-dimension Vermeer cepstral coefficients which are standardized by a time wrapping algorithm are extracted; the recognition of meishan pig estrus sound performed by a depth belief network (DBN) is constructed. The method has the advantages that the estrus period of the meishan pig is accurately judged to help the timely conception of sows, achieve the propagation potential of the sows and improve economical benefits.
Owner:HUAZHONG AGRI UNIV +1
Method for screening candidate genes related to litter size of sow by using proteomics technology
InactiveCN102229977AQuick and effective screeningMicrobiological testing/measurementBiological testingDifferential displayCandidate Gene Association Study
The invention relates to a method for screening candidate genes related to litter size of sow by using a proteomics technology, and discloses a method for screening candidate genes related to litter size of the sow. With the present invention, a differential display is adopted for searching differential proteins in ovaries of specific heavy producing pig breeds of Meishan pigs in China and sus scrofa with low litter size, in particular, over-expression genes in the ovaries of the Meishan pigs, to quickly identify the genes related to the litter size of the sow a large scale. Compared to the previous method for screening the candidate genes, the method provided by the present invention is quick and exact; the method can be combined with a transgenic animal technology so as to provide motive power for breed of new transgenic variety and industrialization in China.
Owner:WUHAN UNIV
Black pig breeding method
ActiveCN113749044AFast growthPromote growthFood processingAnimal feeding stuffTibetan pigAnimal science
The invention discloses a black pig breeding method. The black pig breeding method comprises the following steps that firstly, a primary group is selected, a purebred Meishan pig is selected as a female parent and a purebred Tibetan pig is selected as a male parent, hybridizing is carried out, and after the Meishan pig female parent farrowing, a sow piglet is selected as a first-generation female parent for later use; secondly, a second-generation group is selected, the first-generation female parent piglets in the first step are bred to an estrus period, purebred Wujin pigs are selected as male parents, hybridizing is carried out, and sow piglets are selected as second-generation female parents for later use after the first-generation female parents give birth; thirdly, breeding pigs are selected, purebred Duroc pigs are selected as male parents for hybridization when the second-generation female parent piglets in the second step are fed to the estrus period, and the piglets are taken as the breeding pigs after the second-generation female parents give birth; and fourthly, the breeding pigs are bred, and in the breeding process, the breeding pigs are fed with feed three times. The piglets bred through the breeding method are high in growth speed and high in disease resistance, meanwhile, the feed is used for feeding the piglets, growth of the piglets can be promoted, and the feeding amount and the disease resistance of the piglets are improved.
Owner:怒江建浩农业科技发展有限责任公司
Breeding method of matching lines for commercial meat pigs
Owner:SHANGHAI XIANGXIN ANIMALS & FOWLS +1
Method for breeding special wild boars by crossing wild boars with domestic pigs
InactiveCN106614330AImprove reproductive performanceImprove survival rateAnimal husbandryDomestic pigF1 generation
The invention belongs to the technical field of cross breeding, and particularly relates to a method for breeding special wild boars by crossing wild boars with domestic pigs. The method comprises the specific steps that 1, crossing is conducted by taking pure south China wild boars as male parents and taking pure Xinjiang wild boars as female parents to obtain F1-generation crossed wild boars; 2, crossing is conducted by taking the F1-generation crossed wild boars as male parents and taking pure Meishan pigs as female parents to obtain F2-generation crossed pigs; 3, crossing is conducted by taking the pure south China wild boars as male parents and taking the F2-generation crossed pigs as female parents to obtain F3-generation crossed pigs; 4, athwart crossing is conducted on the F3-generation crossed female pigs and the F3-generation crossed male pigs to obtain an athwart crossing generation; 5, the athwart crossing generation is subjected to 3-4 generations of breeding. The special wild boars bred through the method are good in reproductive performance and high in piglet survival rate.
Owner:巫溪县长贵养殖有限公司
Genetic marker using pig CKM (creatine kinase muscle) 5' flanking promoter region SNP (single nucleotide polymorphism) as pig carcass traits and application
InactiveCN102776184BMicrobiological testing/measurementDNA/RNA fragmentationMuscle tissueCreatine kinase
Owner:HUAZHONG AGRI UNIV
Meishan pig breeding feed
InactiveCN106234798APromote growth and developmentSupplementary nutrientsFood processingAnimal feeding stuffAnimal scienceNormal growth
The invention discloses a Meishan pig breeding feed. The Meishan pig breeding feed comprises the following components in parts by weight: 15-30 parts of corn flour, 15-30 parts of wheat bran, 10-20 parts of soybean powder, 55-65 parts of bean cake, 75-110 parts of fine rice bran, 4-13 parts of bone meal, 3-8 parts of linseed cake, 4-7 parts of cassava leaf, 5-10 parts of sorghum powder, and 8-14 parts of salt. The raw materials of the Meishan pig breeding feed take edible wild herb and coarse grains such as corn and soybean as main components, normal growth of the pig is effectively promoted, the palatability is strong, digestion is promoted, nutrient element required during a growth process of the pig is supplemented, pig growth speed is increased, and the pork quality is increased.
Owner:TAICANG JINZHU AGRI DEV
IncRNA marker related to bacterial diarrhea resistance of piglets and application of IncRNA marker
InactiveCN113832235AAntibacterial agentsMicrobiological testing/measurementBiotechnologyBacteroides suis
The invention relates to an IncRNA marker related to bacterial diarrhea resistance of piglets and application of the IncRNA marker. According to the IncRNA marker and the application thereof, a key candidate lncRNA-FUT3-AS1 for Escherichia coli F18 infection regulation is screened through omics sequencing, the sequence is SEQ ID NO: 1, and on the basis, deep analysis is carried out around the function and regulation mechanism of the FUT3-AS1 in the research; firstly, qPCR and Northern blot technologies are used for detecting the expression difference condition of the FUT3-AS1 in duodenums of F18 Escherichia coli sensitive and resistant weaned piglets of Meishan pigs and Sutai pigs, lncRNA-FUT3-AS1-silenced pig small intestine epithelial cells are successfully established, and the interference efficiency reaches 68%; and a series of detection means such as bacterial counting, Gram's staining, scanning electron microscopy and indirect immunofluorescence find that the adhesion capability of F18 Escherichia coli to IPEC-J2 cells can be remarkably lowered by silencing lncRNA-FUT3-AS1. Therefore, the lncRNA-FUT3-AS1 plays an important resistance regulation function in a process of resisting F18 Escherichia coli infection of the weaned piglets, the adhesion ability of the small intestine epithelial cells to the F18 Escherichia coli is lowered by down-regulating an expression level of the lncRNA-FUT3-AS1, and the resistance ability of the piglets to the F18 Escherichia coli infection is favorably improved.
Owner:YANGZHOU UNIV
Method for breeding new strain of Tibetan pigs and Meishan pigs
The invention discloses a method for breeding a new strain of Tibetan pigs and Meishan pigs. The method mainly comprises the following steps that (1) excellent Tibetan boars are made to be cross-bred with excellent Meishan sows to produce a generation F1, wherein the excellent Tibetan boars and the excellent Meishan sows are different in consanguinity; (2) boars and sows are selected from the generation F1 to be cross-bred with one another to produce a generation F2, wherein the boars and the sows selected from the generation F1 are different in both consanguinity of mothers and consanguinity of fathers; (3) individuals which are delicate in figure and have more effective nipples are selected from a high-yield family and a large category of the generation F2 and are set aside for seeds; (4) the step (3) is repeated until the pigs are basically uniform in figure and appearance, the genetic background is stable, and the new strain of the Tibetan pigs and the Meishan pigs is bred. The Tibetan and Meishan pigs bred through the method have the advantages of being delicate in head figure, free of winkles, straight in back and waist, and good in fertility; the litter size of a first farrowing sow can reach eleven, the litter size of the multiparity can reach twelve, and the breeding rate in 60 days can reach 92%; the meat quality is tender and smooth, meat flavor is delicious, and nutrient is rich.
Owner:铁骑力士食品有限责任公司
Genetic marker using pig MLC(myosin light chain)2 5' flanking promoter region SNP (single nucleotide polymorphism) as pig carcass traits and application
Owner:HUAZHONG AGRI UNIV
Method for breeding new strain of Tibetan pigs and Meishan pigs
The invention discloses a method for breeding a new strain of Tibetan pigs and Meishan pigs. The method mainly comprises the following steps that (1) excellent Tibetan boars are made to be cross-bred with excellent Meishan sows to produce a generation F1, wherein the excellent Tibetan boars and the excellent Meishan sows are different in consanguinity; (2) boars and sows are selected from the generation F1 to be cross-bred with one another to produce a generation F2, wherein the boars and the sows selected from the generation F1 are different in both consanguinity of mothers and consanguinity of fathers; (3) individuals which are delicate in figure and have more effective nipples are selected from a high-yield family and a large category of the generation F2 and are set aside for seeds; (4) the step (3) is repeated until the pigs are basically uniform in figure and appearance, the genetic background is stable, and the new strain of the Tibetan pigs and the Meishan pigs is bred. The Tibetan and Meishan pigs bred through the method have the advantages of being delicate in head figure, free of winkles, straight in back and waist, and good in fertility; the litter size of a first farrowing sow can reach eleven, the litter size of the multiparity can reach twelve, and the breeding rate in 60 days can reach 92%; the meat quality is tender and smooth, meat flavor is delicious, and nutrient is rich.
Owner:铁骑力士食品有限责任公司
SNP marker combination and identification method of Xiaomeishan pig and raw meat products
ActiveCN107699624BEasy to operateMicrobiological testing/measurementDNA/RNA fragmentationBiotechnologyAnimal science
A SNP marker combination and identification method for Xiaomeishan pigs and raw meat products, by extracting the genomic DNA of raw pork or meat products, performing agarose gel electrophoresis and Sanger sequencing after PCR amplification, and according to the SNP at the characteristic site of the sequencing results Genotype identification of Xiaomeishan pig and its meat products; the Sanger sequencing, its identification sites are: specific mutations appear at SNP6, SNP12, SNP16, SNP71, and SNP79 sites; Issues related to identification methods for pigs and their meat products.
Owner:SHANGHAI JIAOTONG UNIV
Breeding method of high-yield and disease-resistant new line of Meishan pig
The invention relates to a method for cultivating high-yield disease-resistant new-strain Meishan pigs. The method is characterized by including: infecting a Meishan pig core group with F18 escherichia coli, and forming a Meishan pig F18 escherichia coli resistance breeding underlying group according to results of phenotype identification; measuring the concentration of F18 escherichia coli resistance group cell factors (IL-2, IL-6, IL-10, IL-12, IFN-alpha and IFN-gamma) in the underlying group; performing comprehensive index breeding on common disease resistance according to individual comprehensive scores by building a main component comprehensive evaluation model, and detecting and selecting characters such as reproductive performance at the same time to obtain a first generation; using continuous progeny selection and molecular marker-assisted selection to gradually achieve the breeding target of cultivating the new strain core group after 4-5 generations. The new-strain pigs are resistant to post-weaning diarrhea, edema diseases and stress, high in environment adaptability, good in meat quality, high in feed conversion and large in litter size.
Owner:YANGZHOU UNIV
Genetic Markers and Applications of Piglet Size Traits
Owner:INST OF ANIMAL SCI & VETERINARY HUBEI ACADEMY OF AGRI SCI +1
Breeding method of quaternary hybrid Sumei pig complete set line
The invention discloses a breeding method of a quaternary hybrid Sumei pig (a name of a hybrid pig) complete set line. The breeding method mainly comprises the following steps of breeding basic populations of Meishan pigs and Suhuai pigs with excellent reproductive performance and meat quality; breeding basic populations of Berkshire pigs and Pietrain pigs with excellent growth performance and slaughtering performance; hybridizing Meishan sows and Suhuai boars to cultivate Huai-Mei synthetic lines, and breeding Huai-Mei pigs with excellent reproductive performance and meat quality as parentalgeneration pigs of the complete set line; hybridizing Berkshire sows and Pietrain boars to cultivate a Pietrain-Berkshire synthetic line, and breeding Pietrain-Berkshire pigs with excellent growth performance and slaughtering performance as parental pigs of the complete set line; and hybridizing the parental Huai-Mei sows with the parental Pietrain-Berkshire boars to obtain the Sumei pig completeset commercial pig. The Sumei pig complete set line cultured by the method is black in whole coat hair, has the hybridization advantages of high reproductive performance and fresh and tender meat of domestic local pigs, also has the hybridization advantages of high growth performance and high lean meat percentage of foreign pigs, is tender and fragrant in meat, high in productivity and high in market competitiveness, and improves the pig raising production efficiency.
Owner:昆山市畜牧兽医站
A kind of cultivation method of Sumei black pig
Owner:JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
Method for breeding high-quality pig complete set line by aid of Tibetan pigs
The invention discloses a method for breeding a high-quality pig complete set line by aid of Tibetan pigs. The method includes steps: (1) the Tibetan pigs and Meishan pigs serve as breeding materials to breed a synthetic line, namely a Tibetan-Meishan synthetic line, and the Tibetan-Meishan synthetic line serves as female parents of the complete set line; (2) Berkshire pigs serve as the first male parents of the complete set line, the Tibetan-Meishan synthetic line serves as the female parents, and sows of the parents' generation of the complete set line are obtained after hybridization; (3) durocs serve as terminal male parents to be hybridized with the sows of the parents' generation to obtain high-quality commercial pigs of the complete set line. Pigs in the complete set line bred in the method are identical in body forms and appearances, hair on the whole pig bodies is black, and brown pigs and white pigs are few; heads of the pigs are light, mouths of the pigs are straight, and ears of the pigs are median in size; backs and bellies of the pigs are flat and straight, body and limb combination is good, and legs and buttocks are well developed. The meat quality is good, production efficiency is high, weight of the pigs can reach 90 kg at 187.22 days of age, the feed conversion rate is 3.14, the lean meat percentage is 57.72%, and the intramscular fat content is 4.07%.
Owner:铁骑力士食品有限责任公司
A special primer, method and kit for identifying Meishan pig or its meat products
InactiveCN104593519BSolve the problem of counterfeitingEasy to operateMicrobiological testing/measurementDNA/RNA fragmentationGenomic DNANucleotide sequencing
The invention discloses a special primer, a method and a kit for identifying a Meishan pig or a meat product thereof. A sequence of the special primer is as shown in SEQ ID NO.1. The method comprises the following steps: (1), extracting genomic DNA (deoxyribonucleic acid) of fresh meat and / or the meat product; (2), taking genomic DNA in the step (1) as a template, and performing a PCR (polymerase chain reaction) by utilizing the primer with the nucleotide sequence as shown in SEQ ID NO.1. The method further comprises the following steps: (3), creating an electrophoretogram of amplified fragments in the PCR in the step (2); or (4), according to the electrophoretogram in the step (3), identifying the fresh meat and / or the meat product of the Meishan pig. The special primer and the method are utilized to effectively solve an identification problem of a Meishan pig variety and can distinguish the Meishan pig variety from other pig meat varieties or beef and mutton. The identification method is simple to carry out and accurate in result.
Owner:SHANGHAI VETERINARY RES INST CHINESE ACAD OF AGRI SCI +2
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