Four-stage rex rabbit breeding method

Abstract

The invention belongs to the technical field of rex rabbit breeding, and discloses a four-stage rex rabbit breeding method. According to the growth and clothing hair development rules of rex rabbits,the four-stage breeding method for rex rabbits which are 8 weeks old, 13 weeks old, 23 weeks old and 6 / 7 months old is created. When the rex rabbits are 8 weeks old, first selection is carried out, and the reserved breeder quantity is at least 400% the bred core group quantity; when the rabbits are 13 weeks old, second selection is carried out, and the reserved breeder quantity is at least 300% the bred core group quantity; when the rex rabbits are 23 weeks old, third selection is carried out, and the reserved breeder quantity is at least 150% the bred core group quantity; when female rabbitsare 6 months old and male rabbits are 7 months old, fourth selection is carried out, rabbits which have a weight of at least 3500.00 g and at least four pairs of teats are reserved as breeders, and the reserved breeder quantity is at least 100% the bred core group quantity. In the method, staged selection (four times of selection in total) is adopted, more breeders are reserved for fine selection,the selection difference is increased, and the selection response is improved.

Description

technical field [0001] The invention belongs to the technical field of rex rabbit seed selection, in particular to a four-stage rex rabbit seed selection method. Background technique [0002] Production performance measurement is the most basic work in breeding. Rex rabbit breeding requires strict and standardized implementation of production performance measurement first, and scientific statistical processing and breeding analysis of various performance records obtained, and then further corresponding breeding measures. Systematic and accurate performance measurement is the premise of scientific selection and the basis for population evaluation and management. Developed countries in the animal husbandry industry attach great importance to the establishment and institutionalization of livestock and poultry production performance measurement systems. [0003] Rex rabbit selection is mainly divided into 5 selections: [0004] (1) The first selection: usually at weaning, main...

AI Technical Summary

Problems solved by technology

[0011] (2) The selection index is only constructed in the second selection, which is not complete;

[0013] (4) Although the fifth selection has improved the selection accuracy, so far only dairy cows have applied the method of descendant determination among agricultural animals, so the fifth selection is removed

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