Ternary hybrid mutton sheep production method

Abstract

The invention discloses a ternary hybrid mutton sheep production method, which comprises: 1, setting a small tailed han sheep pure breeding group as a control group, setting an experiment group, adopting small tailed han sheep as a female parent, adopting Australian white sheep, Dorper sheep and Charolai sheep as male parents, and carrying out hybridization to produce three binary hybrid mutton sheep; 2, selecting ewes of high-quality binary hybrid mutton sheep as female parents, and hybridizing the female parents with Australian white sheep, Dorper sheep and Charolai sheep respectively to generate six kinds of ternary hybrid mutton sheep; and 3, screening out an optimal hybridization combination from the six ternary hybridization combinations through production performance analysis and comparative study. The Australian summer cold ternary hybrid mutton sheep finally obtained by the method has the advantages of high growth speed, large slaughtering weight, high slaughtering rate, low feed conversion ratio and the like, a new method is provided for quickly producing mutton sheep in batches, and the requirements of modern people on high-quality mutton can be met in time.

Description

technical field [0001] The invention relates to the technical field of animal breeding, in particular to a method for producing three-way hybrid mutton sheep. Background technique [0002] Small-tailed Han sheep are produced in southern Hebei, eastern and northeastern Henan, southern Shandong, northern Anhui, and northern Jiangsu. They have early maturity, fast growth and development in the early stage, tall physique, good meat quality, estrus in four seasons, strong fecundity, and stable genetics. and other characteristics. Although Small-tailed Han sheep have strong reproductive ability and many lambs, the current breeding management of ewes is not scientific and meticulous, resulting in longer non-production days of ewes, increasing production costs, reducing breeding benefits, and at the same time, the meat production rate is relatively low , not suitable for use as meat sheep. [0003] At present, in order to improve the meat production performance and mutton quality ...

AI Technical Summary

Problems solved by technology

Studies have shown that the total reproductive capacity of binary hybrid sheep is increased by 2.1%, and the reproductive capacity of three-component hybrid sheep is increased by 14.9%. It can be seen that the way of multiple hybridization does have obvious advantages in improving a certain performance, but it is different from developed countries. Compared with other countries, my country started late in multivariate hybridization, and hybrid pigs are common, while multivariate hybridization for sheep is mainly based on binary hybridization, ternary hybridization is rare, and there are patents that also disclose related ternary hybridization. The hybridization method of sheep has a cumbersome hybridization process, and the hybrid parents used are generally some old foreign breeds as male parents, such as: Dorset, Suffolk, etc., and with the continuous updating of foreign mutton sheep breeds, Although the crossbreeding of these old foreign breeds has improved some traits in a certain sense, but with the continuous improvement of people's requirements for the quality of mutton sheep, how to choose better quality mutton sheep and local small-tailed Han sheep It is of great significance to obtain better quality sheep for meat production through multiple crosses

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