Breeding method of a new breed of high-quality mutton sheep

Abstract

The invention provides a method for breeding a novel variety of high-quality mutton sheep. The method comprises the steps of performing screening and generational purification on FecB, CLPG, MSTN genes of dorper, sheep raised in Zhejiang Province and Australian white sheep to obtain bbccmm genotype of dorper pure-line core group 1, BBccmm genotype of Zhejiang Province sheep pure-line core group 2 and bbCCMM genotype of Australian white sheep pure-line core group 3; then enabling dorper rams in the pure-line core group 1 to be crossbred with Zhejiang Province ewes in the pure-line core group 2 to produce Bbccmm genotype of F1th-generation dorper-Zhejiang Province sheep, then using ewes of the F1th-generation dorper-Zhejiang Province sheep as an expanding propagation group, and enabling the ewes to be crossbred with Australian white rams to obtain novel variety of high-quality mutton sheep.

Description

technical field [0001] The invention belongs to the field of livestock breeding, and in particular relates to a method for cultivating new strains of high-quality mutton sheep. Background technique [0002] Since the late 1980s, China has become the country with the largest number of sheep and goats raised, slaughtered and mutton produced in the world. With the change of the national consumption concept and the understanding of the nutritional value of mutton, the market demand for mutton is increasing day by day. However, the production of mutton sheep in my country lags behind the world's advanced level. The integration and innovation of mutton sheep breeding technology is insufficient, and the technical level and efficiency of breeding are low, resulting in the lack of high-quality mutton sheep varieties with independent intellectual property rights. [0003] Due to reasons such as economic level and agricultural industrial structure, my country's mutton sheep production...

AI Technical Summary

Problems solved by technology

[0004] Compared with the world's fine meat sheep, the existing local sheep breeds in my country generally grow slowly and have low meat production performance, which cannot meet the people's growing demand for mutton. At the same time, foreign fine meat sheep have the ability to withstand rough feeding. , strong disease resistance and high fecundity

At present, our country has not yet formulated a more scientific standard for meat sheep, and has not yet bred a recognized breed of specialized meat sheep, and its production performance is far behind that of foreign breeds.

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