Breeding method for novel mutton variety of Hu-sheep

Abstract

The invention discloses a breeding method for a novel mutton variety of Hu-sheep. The breeding method comprises the following steps: carrying out hybridization with Hu-sheep as a female parent and white-head Dorpor sheep as a male parent so as to produce the first filial generation of a Dorpor-Hu sheep population; subjecting the first filial generation of female Dorpor-Hu sheep to hybridization with male Hu-sheep so as to produce the second filial generation of the Dorpor-Hu sheep population; carrying out hybridization with female Hu-sheep as a female parent and male Australian white sheep as a male parent so as to produce the first filial generation of an Australian-Hu sheep population, and subjecting the first filial generation of female Australian-Hu sheep to hybridization with the male Hu-sheep so as to produce the second filial generation of the Australian-Hu sheep population; and subjecting the second filial generation of male Dorpor-Hu sheep to hybridization with the second filial generation of female Australian-Hu sheep so as to produce the third filial generation of an Australian-Dorpor-Hu sheep population, subjecting the third filial generation of the Australian-Dorpor-Hu sheep population to intercrossing and fixing, and carrying out breeding so as to obtain the novel mutton variety of the Hu-sheep. The novel variety of sheep bred by using the method provided by the invention has the following advantages: the size is large; the whole body is white; growth and development are rapid; the mutton production rate is high; the weight of an adult male sheep reaches 90 kilograms or above; the weight of a female sheep reaches 60 kilograms or above; the reproduction rate reaches 200% or above; adaptability is strong; and applicability to indoor feeding and development of fed-lamb production is realized.

Description

technical field [0001] The invention belongs to the technical field of animal breeding, and mainly relates to a method for cultivating new strains of Hu mutton. Background technique [0002] With the advancement of science and technology and the development of society, especially in recent years, China's sheep industry has developed rapidly and achieved remarkable results, but there are many problems. There is a big gap, and there is a lack of specialized meat sheep breeds. [0003] Hu sheep are produced in the Taihu Lake Basin, distributed in Huzhou City, Tongxiang City, Jiaxing City, Changxing County, Deqing County, Haining City and the suburbs of Hangzhou in Zhejiang Province, Wu County in Jiangsu Province, and some suburban counties in Shanghai. Hu sheep are famous for their fast growth, early maturity, four seasons of estrus, multiple births and high yield, and the lambskin pattern is beautiful. It is a unique sheep breed for lambskin in my country, and it is also a r...

AI Technical Summary

Problems solved by technology

However, due to the expansion of the breeding scale, the farmers did not carry out good selection and breeding. Compared with the existing large-scale promotion of Hu sheep, the physique is relatively small, the meat body is slightly inferior, and the ribs are not open enough.