Breeding method for a new strain of small tail cold mutton

Abstract

The invention discloses a breeding method of a new meat-type strain of small tailed han sheep. The small tailed han sheep are used as female parents, and white head Suffolk sheep are used as male parents for introductive hybridization to produce a second generation sheep flock to obtain a Sahan second generation sheep flock; then, first generation Duhan sheep produced by hybridizing white head Dorper sheep varieties with the small tailed han sheep are used as female patients; Australian white sheep are used as terminal male parents for producing Aoduhan second generation through hybridization; then, the sahan second generation female sheep are hybridized with the Aoduhan second generation male sheep to produce Saduaohan new strains; finally, through optimization combination and cross hybridization fixation, the new strain of meat-type small tailed han sheep is obtained through breeding. The obtained new strain has the advantages that the growth and development speed is high; both the meat and milk purposes can be achieved; the body shape is good; the hair in the whole body is white; the applicability is high; the polyembryony property of the small tailed han sheep is realized; the lambing percentage of the female sheep is 200 percent or above; the body weight of the adult male sheep reaches 100kg or higher; the body weight of the adult female sheep reaches 70kg or higher.

Description

technical field [0001] The invention belongs to the technical field of animal breeding, and in particular relates to a method for cultivating a new strain of small-tailed cold mutton. Background technique [0002] Small-tailed Han sheep are mainly distributed in the southwest of Shandong Province, Xinxiang City and Kaifeng City in Henan Province, southern, eastern and northeastern Hebei, and northern Anhui and Jiangsu. In Shandong Province, the central production areas are mainly distributed in Liangshan, Juye, Jiaxiang, Dongping, Wenshang and other counties. It is a famous local fine variety in our country. The small-tailed Han sheep has a strong physique, a tall body, long limbs, and a slightly square shape when viewed from the side. The bridge of the nose is protruding, the ears are big and drooping, the head of the ram is big and the neck is thick, and there are well-developed spiral big horns; no horns. The forequarters are developed, the chest is wide and deep, the...

AI Technical Summary

Problems solved by technology

Small-tailed Han sheep is a world-recognized breed for multi-parity meat, but in actual breeding, there are still many shortcomings, such as unsatisfactory body shape for meat, low meat production rate, and not easy to gain weight, etc.