Mutton type Northeast China fine-wool sheep new strain cultivating method

Abstract

The invention relates to the technical field of animal breeding, particularly to a mutton type Northeast China fine-wool sheep new strain cultivating method. The mutton type Northeast China fine-woolsheep new strain cultivating method comprises the following steps of identifying and assessing Northeast China fine-wool sheep and mutton type South Africa merino sheep to select high-quality Northeast China fine-wool sheep as the female parent and high-quality mutton type South Africa merino sheep as the male parent to form a breeding group; hybridizing the Northeast Chine fine-wool sheep with the mutton type South Africa merino sheep to obtain F1-generation ewes; hybridizing the F1-generation ewes with the mutton type South Africa merino sheep to obtain F2-generation ewes; hybridizing the F2-generation ewes with the mutton type South Africa merino sheep to obtain F3-generation rams; crossing and fixing the F2-generation ewes with the F3-generation rams to obtain a crossed first generation; fixing, breeding and propagating the crossed first generation to obtain a mutton type Northeast China fine-wool sheep new strain. The mutton type Northeast China fine-wool sheep new strain obtainedthrough the method retains the excellent wool quality of the Northeast China fine-wool sheep as well as the meat-production property of the mutton type South Africa merino sheep.

Description

technical field [0001] The invention relates to the technical field of animal breeding, in particular to a method for cultivating a new strain of fine-wool sheep for Northeast meat. Background technique [0002] The mutton sheep breeding industry in developed countries has three notable characteristics, one is the high degree of improved breeds; the other is high production efficiency; the third is high product quality rate. At present, as the wool market is weak, the demand for mutton is soaring, and the development trend of the world sheep industry is from the use of wool to the use of meat and wool or meat. The main content of sheep breed improvement is to improve meat performance. [0003] The main problems in my country's meat sheep breeding: First, my country's meat sheep breeding is seriously insufficient and the breeding infrastructure is weak. The country lags behind pigs and poultry in terms of breeding funds and manpower input, resulting in a lack of planning fo...

AI Technical Summary

Problems solved by technology

[0010] The invention provides a method for breeding a new strain of fine-wool sheep for Northeast meat, which solves two prominent problems existing in the production of Northeast meat sheep: one is that due to the lack of specialized mutton breeds, the long-term dependence of meat sheep on imports The second is that the existing local breeds of Northeast fine-wool sheep generally have slow growth rate, low meat production rate, and the main economic traits need to be improved and improved.