Cultivating method for new strain for Alpine Merino mutton

Abstract

The invention discloses a cultivating method for a new strain for Alpine Merino mutton. The method includes the steps that South African meat Merino serving as a male parent and Alpine Merino servingas a female parent are subjected to grading crossing to obtain an F1 generation; Merino is selected and reserved after crossing, then the South African meat breeding Merino serves as the male parent or the Alpine Merino serves as the female parent, grading crossing or backcross is carried out, and an F2 generation is obtained; the F2 generation and the F1 generation or the female-parent Alpine Merino are backcrossed, and rams and ewes of the obtained F3 generation are selected and reserved with the individual phenotype method and are cultivated; the rams and the ewes after selecting reservingand cultivation are subjected to crossing fixation of 3-4 generations, and the new strain for the Alpine Merino mutton is obtained. The cultivating method for the new strain for the Alpine Merino mutton has the advantages that the cultivating method is suitable for Qilian-mountain plateau ecological areas and fine-wool-sheep main producing areas, mutton production is developed, and existing fine-wool-sheep development modes are not damaged; the new strain has the advantages of being large in physique, high in growing development speed, excellent in wool quality, good in meat performance, stable in inheritance performance and the like.

Description

technical field [0001] The invention belongs to the technical field of animal breeding, and relates to a new strain of alpine merino mutton by using the world-famous South African Merino and domestically cultivated varieties of Alpine Merino. breeding method. Background technique [0002] Australia and other developed countries in the world are not only big producers of high-quality wool and mutton, but also pay great attention to the cultivation and improvement of varieties. After a variety is bred, if it is not improved by selective breeding, good traits will be lost unconsciously in the population as time goes by. In order to prevent this phenomenon from happening, only continuous scientific breeding can be improved. However, at present, a large number of foreign excellent varieties are introduced in China, and they often only care about hybridization and utilization, while ignoring the preservation and selection of male and female varieties in the hybrid combination. T...

AI Technical Summary

Problems solved by technology

However, at present, a large number of foreign excellent varieties are introduced in China, and they often only care about hybridization and utilization, while ignoring the preservation and selection of male and female varieties in hybrid combinations. This is extremely unfavorable to the preservation of domestic excellent varieties and the further use of their heterosis.