5 results about "Meishan pig" patented technology

The invention discloses an SNP (Single Nucleotide Polymorphism) haplotype molecular marker related to the logarithmic character of ribs of a Mishuangsu pig and application of the SNP haplotype molecular marker. The molecular marker is characterized in that (1) the SNP polymorphism of a chr791137916 site is G / T; (2) the SNP (Single Nucleotide Polymorphism) polymorphism of the chr791167100 site is A / G; and (3) the SNP polymorphism of the chr791517487 site is T / A, and the molecular marker is mainly used for screening / identifying excellent varieties. The method has the advantages that the breeding efficiency and the selection accuracy can be improved, meanwhile, the gene frequency of the excellent economic character of the multi-rib logarithm in a group can be improved, the rib logarithm character of the group is improved in a targeted mode, and therefore the carcass performance and meat production economic benefits of the whole group are improved.

This invention relates to the field of pig farming technology, specifically disclosing an anti-climbing fence structure for Meishan pigs, comprising several fence mechanisms; each fence mechanism includes enclosure blocks and protective components mounted on the enclosure blocks; a connecting block is provided between two adjacent enclosure blocks, with both ends of the connecting block detachably connected to the two enclosure blocks respectively; the protective components include a protective block, a first electrode plate, a second electrode plate, a third electrode plate, a buzzer, a fixing block, a stop block, a first chamber opened within the enclosure block, a sliding hole opened on the enclosure block, a limiting hole opened on the fixing block, and a power unit for driving the stop block to move closer to the protective block; the sliding hole communicates with the first chamber; the protective block is slidably connected to the sliding hole. This addresses the problem of sharp spikes in existing anti-climbing pigpens easily causing injury to pigs.

The invention discloses a high-fiber daily ration suitable for efficient feeding of Meishan fattening pigs and application of the high-fiber daily ration. The TDF level of the high-fiber daily ration is 20.27%. The high-fiber daily ration has the beneficial effects that the economic benefit of Meishan pig breeding can be improved, and the use of corn and soybean meal feed raw materials is reduced in the preparation of the daily ration, so that the feed cost is reduced to a certain extent; the dependence on energy feed can be reduced to a certain extent; the utilization rate of fibrous raw material resources such as wheat bran is improved to a certain extent. An important reference is provided for reasonably and efficiently utilizing fibrous feed resources in Meishan fattening pig breeding.

The invention discloses a black pig breeding method with southern Yunnan small-ear pigs as main breeding materials, and relates to the technical field of animal breeding, and the black pig breeding method is technically characterized by comprising the following steps: S1, screening an optimal hybridized combination: carrying out a hybridized combination test on the southern Yunnan small-ear pigs, Berkshire pigs, Duroc pigs, Meishan pigs and other pig breeds, and screening out the optimal hybridized combination; s2, establishing a breeding core group: selecting ideal type individuals with target traits tending to be consistent in the optimal hybrid combination, and establishing the breeding core group; s3, group subculture breeding: continuously performing group subculture breeding on the breeding core group to obtain a black pig variety which is good in reproductive performance, high in growth speed, high in feed conversion and stable in hereditary character; according to the method, the advantages of the southern Yunnan small-ear pigs are utilized, dominant characters of other pig breeds are combined, and a new black pig variety is bred through the technical means of group subculture breeding, cross-breeding fixation and the like; the new pigs are good in reproductive performance, high in growth speed, high in feed reward and very high in economic value.

This invention provides molecular markers for SNPs (Special Nominal Nuclei) of the logarithmic rib trait in Meihuaxing pigs and their applications. The specific base sequences of the SNP molecular markers are shown in SEQ ID NO. 23-33. These molecular markers are mainly used for screening and / or identification of superior breeds. The advantages of this invention are that, in actual breeding, retaining individuals carrying superior genotypes helps improve breeding efficiency and selection accuracy. Simultaneously, it can increase the gene frequency of the superior economic trait of multiple ribs in the population, allowing for targeted improvement of the rib logarithmic trait, thereby enhancing the carcass performance and economic benefits of the entire population.