North China black head mutton sheep crossbreed method

Abstract

The invention discloses a north China black head mutton sheep crossbreed method, and belongs to the technical field of animal breeding. The north China black head mutton sheep crossbreed method includes: selecting small tailed cold sheep as female parents and Dorper sheep as male parents; performing grading hybridization; performing crossing and consolidating, selecting and domestication; and selecting black head sheep having optimal indexes as a new strain blood relationship. The hybrid north China black head mutton sheep are high in benefits, can achieve triple pregnancy during two years, can deliver 2-3 sheep each time, and has the survival rate of 95%; the feed conversion rate is high, the feed threshold is low, the growth vigor is significant, the fatness of the sheep is good, and the north China black head mutton sheep has excellent virus resistance.

Description

technical field [0001] The invention belongs to the technical field of animal breeding, and mainly relates to a hybrid breeding method of North China black-headed mutton sheep. Background technique [0002] China has a long history of raising sheep and is a big sheep raising country in the world. In recent years, with the improvement of living standards, the change of people's food structure and the higher and higher requirements for healthy food, the consumption of mutton is increasing. But at the same time, when the traditional sheep raising industry is rapidly transforming into the modern sheep raising industry, the problem of low productivity of sheep breed resources has become an important bottleneck restricting the development of the modern sheep raising industry. [0003] my country's North China mutton sheep have slow growth rate, low meat production rate, and poor meat quality. Specifically, there are generally problems such as underdeveloped front chest, narrow bo...

AI Technical Summary

Problems solved by technology

[0003] my country's North China mutton sheep have slow growth rate, low meat production rate, and poor meat quality. Specifically, there are generally problems such as underdeveloped front chest, narrow body, insufficient rib opening, underfull hindquarters, and poor meat production performance. These factors have always restricted The development of local mutton sheep breeds, and mutton breeding sheep have long relied on foreign imports

The local breed in Shanxi Province is the small-tailed Han sheep. Its advantages are multiple litters and multiple lambs, estrus all the year round, three litters in two years, and 2 to 3 lambs. defect of not overcharging

Images