Breeding method of first paternal line of rhizomys simesis grays
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A breeding method and technology of bamboo rats, which are applied in animal husbandry and other fields, can solve the problems of low reproductive performance, small litter size, and high risk of bamboo rats, so as to enhance accuracy and stability, reduce workload, and improve economic benefits Effect
Active Publication Date: 2018-01-12
兰陵县财金投资有限公司
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[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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Embodiment 1
[0035] A method for cultivating the first male line of Chinese bamboo rat, comprising the following steps:
[0036] S1. Determine the standard weight range of female bamboo rats as X 1 -X 2 (The selected female and male bamboo rats are all purebred Chinese bamboo rats):
[0037] With 1.225Kg as the minimum weight, every 50g increase in weight is a weight level to 1.525Kg as the highest weight, and a total of weight level Ⅰ (1.225Kg-1.275Kg), weight level Ⅱ (1.275Kg-1.325Kg), weight level Ⅲ (1.325Kg-1.375Kg), weight level IV (1.375Kg-1.425Kg), weight level V (1.425Kg-1.475Kg), weight level VI (1.475Kg-1.525Kg) six weight levels, within each weight level Including the minimum body weight within the range of this weight level, excluding the highest body weight within the range of this weight level, select 20 female bamboo rats for each weight level, and breed them with male bamboo rats with a body weight within the range of 1.49-1.51Kg, Statistics of the average litter size (o...
Embodiment 2
[0048] A method for cultivating the first male line of Chinese bamboo rat, comprising the following steps:
[0049] S1. Determine the standard weight range of female bamboo rats as X 1 -X 2 , and determine the standard weight range Y of male bamboo rats 1 -Y 2 , where X 1 -X 2 , and Y 1 -Y 2 The determination of is subject to the data determined in Example 1, that is, X 1 -X 2 1.375Kg-1.425Kg, Y 1 -Y 2 1.65Kg-1.71Kg;
[0050] S2. Select 60 male bamboo rats whose body weight is within 1.65Kg-1.71Kg, and 180 female bamboo rats whose body weight is within 1.375Kg-1.425Kg, and establish according to each family including 1 male bamboo rat and 3 female bamboo rats 60 families;
[0051] S3, the 60 family lines that are established are carried out one generation of selective breeding, and the reproductive performance I (W) of each family line is counted. 1 ), the reproductive performance I takes the number of adult offspring who reach the standard body weight E and the s...
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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 ...
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