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Method for obtaining purebred offspring when hens are mated with different cocks

A technology of rooster and hen, applied in the field of poultry farming

Active Publication Date: 2012-10-10
广东智威农业科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, in order to improve the production utilization rate of breeding hens, it is hoped that the principle of sperm competition can be used to find a simple method to continuously obtain the purebred offspring of the latter cock faster than the traditional method, but there is no such method at present report

Method used

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  • Method for obtaining purebred offspring when hens are mated with different cocks
  • Method for obtaining purebred offspring when hens are mated with different cocks
  • Method for obtaining purebred offspring when hens are mated with different cocks

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Example 1 The situation where the outage time is less than 12 days

[0022] Select 30 fast-feather cocks, 30 slow-feather cocks and 300 fast-feather hens, and randomly divide them into 5 groups (A-E). After collecting the semen of fast-feather cocks in each group and mixing them, the group of hens will be artificially inseminated once (the insemination volume is 20-30μl, the insemination depth is 1.5-2cm, and the insemination time is 15:00-17:00), And remember this day as the first day. Then, on the 2nd, 4th, 6th, 8th, and 10th day when the insemination was stopped, groups A, B, C, D, and E were inseminated with the mixed semen of slow-feather cocks, and the same method was repeated every 3 days. From the 12th, 10th, 8th, 6th, and 4th days after the insemination of the slow-feather cocks, the eggs of groups A-E were collected sequentially, and the eggs were purebred offspring of the slow-feather cocks after hatching. image 3 It is the changing situation of each group...

Embodiment 2

[0023] Example 2 The situation where the outage time is 12 days

[0024] Select 6 fast-feather roosters, 6 slow-feather roosters and 60 fast-feather hens, collect the semen of 6 fast-feather cocks and mix them, and then artificially inseminate the group of hens once (the amount of insemination is 20-30μl, The depth is 1.5-2cm, the insemination time is 15:00-17:00) and this day is recorded as the first day. Then on the twelfth day after the cessation of mating, the mixed semen of 6 slow-feather cocks was used to inseminate the group of hens in the same way and repeated every 3 days. The eggs are collected 2 days after the insemination of the slow-feather cock, and the eggs are purebred offspring of the slow-feather cock after hatching. Figure 4 It is the changing situation of each group's slow-feather offspring ratio in this embodiment, "●" represents the slow-feather rate, and "↑" represents the starting time of slow-feather cock insemination. This embodiment proves that af...

Embodiment 3

[0025] Embodiment 3 outage time is greater than the situation of 12 days

[0026] Select 18 fast-feather cocks, 18 slow-feather cocks and 180 fast-feather hens, and randomly divide them into 3 groups (A-C), see Figure 5 . Collect the semen of each fast-feather rooster and mix them, then artificially inseminate the group of hens (the insemination volume is 20-30μl, the insemination depth is 1.5-2cm, and the insemination time is 15:00-17:00), and record this day is day 1. Then, on the 16th, 20th, and 24th days after the insemination was stopped, the mixed semen of slow-feather cocks was used for insemination in the same way and repeated every 3 days. The eggs of each group were collected 2 days after the insemination of the slow-feather cocks, and the eggs were purebred offspring of the slow-feather cocks after hatching. Figure 5 It is the changing situation of each group's slow-feather offspring ratio in this embodiment, " " represents the slow-feather rate, "↑" represents...

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Abstract

The invention provides a method for obtaining purebred offspring when hens are mated with different cocks. The method comprises the following steps of: enabling the hens to be mated with another type of the cocks with different genetic background after N days of the situation that the hens are stopped from mating with the previous type of the cocks, and further starting to collect hatching eggs after M days of the situation that the hens are mated with the next type of the cocks, wherein N plus M is not less than 14, N is not less than 0 and M is not less than 2, and the obtained hatching eggs are of the purebred offspring of the next type of the cocks. When N is not less than 12, the collection of the hatching eggs is further started after M days of the situation that the hens are mated with the next type of the cocks, and when M is not less than 2, the obtained hatching eggs are of the purebred offspring of the next type of the cocks. When N is less than 12, the collection of the hatching eggs is further started after M days of the situation that the hens are mated with the next type of the cocks, and when M is not less than 14 minus N days, the obtained hatching eggs are of thepurebred offspring of the next type of the cocks. Preferably, N plus M equals 14 days. Compared with a traditional method, the time can be advanced by one week, the operation is simple, convenient and reliable, and the purebred offspring can be obtained more effectively.

Description

technical field [0001] The invention relates to the technical field of poultry breeding, in particular to a method for obtaining purebred offspring when a hen and a different rooster are mated. Background technique [0002] In the breeding and production of yellow-feathered broilers in China, in order to flexibly respond to market demand, breeding hens often replace breeding roosters with different genetic backgrounds through artificial insemination to obtain different types of offspring. Since the sperm of birds (including birds) can be stored in a special microtubule located at the female uterus-vaginal junction to maintain long-term fertilization ability, if a hen mates with two roosters successively, the sperm of different roosters will In the female hen competes with each other for the right to fertilize the eggs, the offspring of the two roosters may appear alternately. Therefore, in order to completely eliminate the influence of the former cock and continue to obtain...

Claims

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Application Information

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IPC IPC(8): A01K67/02
Inventor 马杰瞿浩彭志陈鹏杨纯芬舒鼎铭
Owner 广东智威农业科技股份有限公司