A kind of autosexing mating methods for laying quails
(the original application applying date: 2009.11.24
Original application application number: 200910172693.1
Original application denomination of invention: autosexing mating methods for laying quails)
Technical field
The present invention relates to a kind of autosexing mating methods for laying quails, belong to quail cultural technique field.
Background technology
Main plumage chromaticity system during at present China's Laying quail produces have Korea quail (wild type Li Yu), the white plumage in Beijing and
Chinese Yellow plumage.This several plumage color quail can form 4 kinds of binary autosexing strains and 2 kinds of ternary autosexing strains,
Have a wide range of applications in production.After finding black plumage mutant in Korea quail hybrid population, successively tried by hybridization
Test the genetic mechanism to black plumage mutator and be mutated black feather genes seat (h/h) and sex-linkage plumage color gene seat b/b (albefaction gene
Seat) and the interaction of y/y (yellow feather genes seat) studied.Research confirms, controls the gene h of black plumage proterties to be located at normal dyeing
On body, and with sex chromosome z on locus b/b and y/y has certain interaction.Wild type gene h is to black feather genes h
For incomplete dominance, h gene has the effect maintaining normal Li Yu or yellow plumage, and black feather genes h is in stealth to y/y locus
, black feather genes darken effect to Li Yu (y) and yellow plumage (y) simultaneously.Black feather genes h in the presence of coloured gene b, with y/y
Interaction of genes can produce multiple plumage colors.For public quail, during hh homozygosis, make Li Yu blackening with y- interaction (yy and yy);Heterozygosis
When, hh and y- interaction (yy and yy) make Li Yu be changed into imperfect black plumage.For female quail, hh and y interaction can make Li Yu be changed into
Black plumage;Hh and y- interaction make Li Yu be changed into imperfect black plumage, and hy and y interaction make Huang Yu be changed into light grey.During albefaction gene b homozygosis
Recessive epistasis is to black feather genes seat h/h and yellow feather genes seat y/y, when b homozygosis (male quail) or single presence (female quail),
Two locus of h/h and y/y regardless of genotype, all cash as white plumage by quail.According to this research, each pure lines can be deduced
Or colony quail obtains genetic affinity on these three locus.
Current autosexing strain can not make full use of existing quail strain for laying, just by one in its application
Fixed restriction.
Content of the invention
It is an object of the invention to provide autosexing mating methods for laying quails.
Technical program of the present invention lies in employing a kind of autosexing mating methods for laying quails, it utilizes the white plumage in Beijing
Male quail produces f1 generation with egg with the mother's quail hybridization of black plumage, and young quail goes out the shell same day, you can differentiate male and female according to plumage color, public quail is incomplete
Black plumage, female quail is white plumage.
Described egg with the breeding method of black plumage quail is: (1) utilizes public quail and the Korea Li Yu of black plumage quail mutant
Female quail hybridization, produces f1 generation;(2) select the male and female quail selfing of imperfect black plumage in f1 generation, produce f2 generation;(3) select in f2 generation
The male and female quail of completely black plumage, carries out traversed by and fixes and test cross, enables black plumage to stablize heredity, by group expanding, seed selection, cultivates into egg
Use black feather quail strain for laying.
The present invention, with the new black plumage of Laying quail plumage color mutantion line cultivated as material, is joined with the white plumage in Beijing of popularization on market
Set hybridization is it is achieved that the purpose of first-filial generation automatic sexing, the rate of accuracy reached 100% of automatic sexing;Quail birth can be from not
Male and female, the female quail after discriminating is directly used in lays eggs, and public quail can be eliminated early can also concentrate to fatten and be sold as meat quail, and this is right
In simplifying Sex judging means, save the cost of early rearing public affairs quail, improve the efficiency of management, during increase China Laying quail produces
The autosexing strain using, makes full use of China's quail genetic resources, improves quail breed system productivity effect.
Specific embodiment
Embodiment 1
The autosexing mating methods for laying quails of the present invention, comprises the following steps:
(1) cultivate egg with black plumage quail, its breeding method is the public quail and Korea's chestnut first with black plumage quail mutant
Plumage mother's quail hybridization, produces f1 generation;In reselection f1 generation, the male and female quail selfing of imperfect black plumage, produces f2 generation;Then select f2 generation
In completely black plumage male and female quail, carry out traversed by and fix and test cross, enable black plumage stablize heredity, by group expanding, seed selection, cultivate into
Black feather quail strain for laying eggs;
(2) producing the first generation of hybrid with egg with the mother's quail hybridization of black plumage using Beijing Bai Yugong quail is f1 generation;
(3) chick goes out the shell same day, differentiates male and female according to f1 for plumage color, and public quail is imperfect black plumage, and female quail is white plumage.
Its hereditary pattern is as follows: