Breeding method of a new line of hornless yak

Abstract

The invention discloses a breeding method of a new strain of hummel yaks. The breeding method comprises the following steps that (1) general investigation is conducted on yak groups in a breeding area, and the content of the general investigation mainly comprises presence or absence of horns of the yaks, body structures, appearance features and the like; (2) female yaks, having the basically consistent appearances, no horn, and similar characters, of the yaks subjected to general investigation in the step (1) are marked and registered, files are created, and a basic female yak group is organized; (3) the basic female yak group selected in the step (2) hybridizes with excellent hummel male yaks, and measurement, selection and remaining of offspring are conducted; (4) the method of the marker-assisted selection technology is used for accelerating a strain breeding process, and the new strain of the hummel yaks is obtained through 3-4 generation crossing fixation in the method of group subculture breeding. Compared with domestic yaks, the new strain of the hummel yaks has the advantages of being good in meat performance, high in reproductive rate and strong in the ability of adapting to the environment.

Description

technical field [0001] The patent of the present invention relates to a method of animal breeding, in particular to a method of breeding a new line of hornless yak. Background technique [0002] It is well known that horned domestic animals are easy to injure people, destroy pens and damage facilities. According to a survey by Australian scientists, horned cattle cause personal injuries in Australia every year, and the damage to pens reaches 22.005 million US dollars. Therefore, scientists from all over the world pay great attention to breeding hornless livestock breeds while cultivating new beef cattle breeds. Several breeds of hornless livestock have been successfully bred. The world-renowned mutton sheep breed Hornless Dorsett has the characteristics of early maturity, fast growth and development, year-round estrus, heat resistance and adaptability to dry climates. Due to its strong heredity, it has become an ideal terminal parent for mutton sheep production in all coun...

AI Technical Summary

Problems solved by technology

However, judging from the promotion process of Datong yaks and the needs of grassroots units and herdsmen for breeding cattle, Datong yaks have become more feral due to the introduction of wild yak blood, and incidents of horned Datong yaks hurting people in the production process have occurred from time to time , while the production performance is improved, it also brings great difficulties to the feeding management

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