Method for breeding improved varieties of dairy cows in unconventional manner by aid of embryo biotechnologies

Abstract

The present invention relates to a method for super-conventional breeding of fine-bred dairy cows using embryonic biotechnology, selecting excellent and suitable cows as donors, the method comprising the following steps: a, superovulation, b, artificial insemination c, embryo punching, d , Embryo inspection, e, embryo freezing, f, embryo thawing, g, embryo separation, h, embryo transfer. By adopting the above method, the birth rate of female calves can be effectively controlled, the production cost is reduced, the quality of dairy cows and milk is improved, and the purpose of supernormal rapid breeding of female dairy cows is achieved.

Description

Technical field

[0001] The invention relates to a biological engineering technology, in particular to a method for super-conventional breeding of high-quality dairy cows using embryonic biological technology. Background technique

[0002] As one of the most comprehensive and complete foods, milk has always been valued by people. Especially with the improvement of people's living standards and the continuous improvement of dietary structure, the social demand for milk continues to increase. According to the development speed of conventional dairy cow breeding, it is difficult to meet people's increasing demand for milk. How to use high-tech to super-conventionally breed dairy cows is an important and urgent task facing the majority of scientific and technological workers, especially livestock workers.

[0003] my country began to conduct research on embryo bioengineering technology in the 1970s, and the speed of research development accelerated after the 1980s. In recent years, gra...