Breeding method for high-yield new variety line of recessive white-feather gooses and application thereof

Abstract

The invention discloses a breeding method for a high-yield new variety line of recessive white-feather gooses and application thereof. The method comprises the following steps of: selecting the high-yield white-feather gooses without broodiness or with weak broodiness, and eliminating dominant white-feather individuals and keeping recessive white-feather individuals A by the test cross or the molecular marker method; self-reproducing the male individuals and female individuals of A to breed the recessive white-feather gooses B; and breeding B again, eliminating dominant white-feather homozygote and heterozygote, self-reproducing the recessive white-feather high-yield individuals with homozygous genotype to expand the group, building a family and breeding the family until the high-yield recessive white-feather goose new variety line C is bred, and performing dualistic or polyphyletic mating by taking the C as a female parent and a colour-feather local goose as a male parent to produce colour-feather gooses or simulated local gooses.

Description

technical field

[0001] The invention relates to a breeding method of a new high-yield strain of recessive white feather goose and its supporting application. Background technique

[0002] my country's colored feather goose species are mainly distributed in the south, such as Guangdong lion head goose, Magang goose, Yangjiang goose, Wuzong goose, Sanzhou black goose, Leizhou black goose, Guangxi Hepu goose, Youjiang goose, Jiangxi Xingguo gray goose, Fengcheng goose Gray goose, Hunan Daozhou gray goose, Anhui goose goose, Zhejiang Yongkang gray goose, Jinhua gray goose, Fujian Changle gray goose, Zhaoan gray goose, Yunnan gray goose, Guizhou Pingba gray goose, Sichuan steel goose, etc. These goose species It has one or more of the following notable features: ① It has strong adaptability to local habitats (especially hot and humid climate conditions), is easy to raise, and has a high survival rate; ② It is large in size, fast in growth, and resistant to rough feeding (such as li...

Examples

Embodiment 1

[0011] The breeding method of recessive white feather goose high-yielding new line, carry out as follows:

[0012] (1) Select white-feathered geese with no nesting ability or weak nesting ability and high egg production, and use test cross method to eliminate dominant white-feathered individuals and select recessive self-feathered individuals A;

[0013] (2) Carry out self-propagation, colony expansion, and selective breeding of A male and female individuals, and breed recessive white feather goose B;

[0014] (3) Carry out testcrossing and breeding for B again or several times according to the above-mentioned steps (1), eliminate dominant white feather homozygotes and heterozygotes, and testcross and breed recessive white feather high-yielding individuals with homozygous genotypes from Multiply and expand the flock, establish a family and carry out family selection until a new high-yield line C of recessive white-feathered goose with stable inheritance is cultivated.

Embodiment 2

[0016] The breeding method of recessive white feather goose high-yielding new line, carry out as follows:

[0017] (1) Select white-feathered geese with no nesting ability or weak nesting ability and high egg production, and use molecular markers to eliminate dominant white-feathered individuals and select recessive white-feathered individuals A;

[0018] (2) Carry out self-propagation, colony expansion, and selective breeding of A male and female individuals, and breed recessive white feather goose B;

[0019] (3) According to step (1), carry out breeding again or several times, eliminate dominant white feather homozygotes and heterozygotes, and self-propagate the recessive white feather high-yield individuals with genotype homozygosity after selection by molecular marker method Group, set up families and carry out family selection until a new high-yielding line C of recessive white feather goose with stable inheritance is cultivated.

Embodiment 3

[0021] Application of new high-yielding strains of recessive white feather goose:

[0022] (1) Self-propagation of the recessive white-feathered goose high-yielding new strain bred with example one or example two, directly produce white-feathered commercial goose;

[0023] (2) Use the recessive white-feathered high-yielding goose bred in Example 1 or Example 2 as the female parent, and use the local geese with colored feathers as the male parent for dual or multiple production. The offspring not only have heterosis, but both male and female are colored. feather;

[0024] (3) Use the recessive white-feather high-yielding goose bred in Example 1 or Example 2 as the male or female parent, and use the dominant white-feather (or recessive white-feather) local white goose as the female or male parent to produce white-feathered geese as a set, and its F1 The feathers are pure white.

technical field

[0001] The invention relates to a breeding method of a new high-yield strain of recessive white feather goose and its supporting application. Background technique

[0002] my country's colored feather goose species are mainly distributed in the south, such as Guangdong lion head goose, Magang goose, Yangjiang goose, Wuzong goose, Sanzhou black goose, Leizhou black goose, Guangxi Hepu goose, Youjiang goose, Jiangxi Xingguo gray goose, Fengcheng goose Gray goose, Hunan Daozhou gray goose, Anhui goose goose, Zhejiang Yongkang gray goose, Jinhua gray goose, Fujian Changle gray goose, Zhaoan gray goose, Yunnan gray goose, Guizhou Pingba gray goose, Sichuan steel goose, etc. These goose species It has one or more of the following notable features: ① It has strong adaptability to local habitats (especially hot and humid climate conditions), is easy to raise, and has a high survival rate; ② It is large in size, fast in growth, and resistant to rough feeding (such as li...

Examples

Embodiment 1

[0011] The breeding method of recessive white feather goose high-yielding new line, carry out as follows:

[0012] (1) Select white-feathered geese with no nesting ability or weak nesting ability and high egg production, and use test cross method to eliminate dominant white-feathered individuals and select recessive self-feathered individuals A;

[0013] (2) Carry out self-propagation, colony expansion, and selective breeding of A male and female individuals, and breed recessive white feather goose B;

[0014] (3) Carry out testcrossing and breeding for B again or several times according to the above-mentioned steps (1), eliminate dominant white feather homozygotes and heterozygotes, and testcross and breed recessive white feather high-yielding individuals with homozygous genotypes from Multiply and expand the flock, establish a family and carry out family selection until a new high-yield line C of recessive white-feathered goose with stable inheritance is cultivated.

Embodiment 2

[0016] The breeding method of recessive white feather goose high-yielding new line, carry out as follows:

[0017] (1) Select white-feathered geese with no nesting ability or weak nesting ability and high egg production, and use molecular markers to eliminate dominant white-feathered individuals and select recessive white-feathered individuals A;

[0018] (2) Carry out self-propagation, colony expansion, and selective breeding of A male and female individuals, and breed recessive white feather goose B;

[0019] (3) According to step (1), carry out breeding again or several times, eliminate dominant white feather homozygotes and heterozygotes, and self-propagate the recessive white feather high-yield individuals with genotype homozygosity after selection by molecular marker method Group, set up families and carry out family selection until a new high-yielding line C of recessive white feather goose with stable inheritance is cultivated.

Embodiment 3

[0021] Application of new high-yielding strains of recessive white feather goose:

[0022] (1) Self-propagation of the recessive white-feathered goose high-yielding new strain bred with example one or example two, directly produce white-feathered commercial goose;

[0023] (2) Use the recessive white-feathered high-yielding goose bred in Example 1 or Example 2 as the female parent, and use the local geese with colored feathers as the male parent for dual or multiple production. The offspring not only have heterosis, but both male and female are colored. feather;

[0024] (3) Use the recessive white-feather high-yielding goose bred in Example 1 or Example 2 as the male or female parent, and use the dominant white-feather (or recessive white-feather) local white goose as the female or male parent to produce white-feathered geese as a set, and its F1 The feathers are pure white.