Breeding method of first paternal line of rhizomys simesis grays

Abstract

The invention discloses a breeding method of first paternal line of rhizomys simesis grays. The breeding method comprises the following steps that 1, the standard body weight range X1-X2 of female rhizomys simesis grays and the standard body weight range Y1-Y2 of male rhizomys simesis grays are determined; 2, N male rhizomys simesis grays with the body weights within Y1-Y2 and 3N female rhizomys simesis grays with the body weights within X1-X2 are selected, and N families are built; 3, the N families are subjected to breeding of one generation, reproductive performance I of all the families are counted, and the families are ranked according to the size of the reproductive performance I, N male rhizomys simesis grays and 3N female rhizomys simesis grays in the families of which the reproductive performance I is ranked within a set range, and the N families are built; 4, the step 3 is repeated till the reproductive performance I of the rhizomys simesis grays of the same generation is higher than a set threshold value, and the male parent of the generation is the first paternal line. The breeding method well coordinates the contradiction of high negative correlated characteristics between the body weights and the reproductive performance of the male rhizomys simesis grays, provides the first paternal line for the special line production of the rhizomys simesis grays and improves the economic benefits.

Description

technical field [0001] The invention relates to the field of bamboo rat breeding. More specifically, the present invention relates to a method for cultivating the first male line of the Chinese bamboo rat. Background technique [0002] The bamboo rat has a large body and a lot of meat, delicious taste, rich nutrition, thick and soft fur, and has high economic value and medicinal value. At present, it has been cultivated on a large scale and has become one of the breeding industries with greater economic benefits. [0003] At present, the breeding technology of bamboo rats is not perfect enough, and bamboo rats generally have the problems of low reproductive performance and small litter size, so that the breeding of bamboo rats has problems of high cost, low benefit and high risk. Moreover, there is a high genetic negative correlation between the weight of bamboo rats and their reproductive performance. If one-sided pursuit of slaughter weight, the reproductive performance ...

AI Technical Summary

Problems solved by technology

[0003] At present, the breeding technology of bamboo rats is not perfect enough. Bamboo rats generally have the problems of low reproductive performance and small litter size, so that the breeding of bamboo rats has problems of high cost, low benefit and high risk.

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