A new strain, breeding method and application of modern high-yield laying hens
A breeding method and technology for new strains, applied in the field of poultry seed production, can solve the problems of singleness, threatening the strategic safety of livestock and poultry breeds, restricted seed sources and prices, and achieve strong operability, long egg production peak duration, shortening Effects of Breeding Cycles
Active Publication Date: 2017-04-05
HENAN AGRICULTURAL UNIVERSITY
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Problems solved by technology
[0002] In view of the large gap between my country and foreign countries in terms of high-yield laying hens, it mainly relies on the introduction of breeds from foreign breeding companies. However, foreign breeding companies only provide a single sex for the purpose of monopolizing breeds and prices. As a result, my country must introduce breeds every year. Constrained by foreign monopoly companies for a long time, it seriously threatens the strategic security of my country's livestock and poultry breeds
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Embodiment 1
[0051] In this embodiment, the high-yield Roman pink-shell hens are used as a material to cultivate modern high-yield layer hens as an example:
[0052]Establish standard DNA fingerprints of high-yield Roman pink-shell layer A, B, C, D pure lines; construct DNA fingerprints of newly introduced grandparent chickens every year, and compare them, and select A, B, C, D pure line.
[0053] 1. High-yielding laying hen A' matching line is bred by the following method, and the specific operation steps are:
[0054] (1) Use the imported rooster of the high-yield Roman powder ancestor A line that meets the standard map and the introduced hen that meets the standard map high-yield Roman powder ancestor B line to cross to obtain the F1 generation
[0055] (2) Keep the F1 generation for breeding The F2 generation was obtained by crossing a hen with a newly introduced rooster that conformed to the A line of the Roman Fen progenitor of the standard map
[0056] (3) Keep the F2 genera...
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The invention discloses a new strain of modern high-yielding laying hens, a breeding method and application thereof, and belongs to the technical field of poultry seed production. In the present invention, the introduced high-yielding grandparent cock and hen are hybridized to obtain two-line matching parents, and then mated with the newly introduced grandparent cock or hen respectively, and this process is repeated until each laying hen strain contains Correspondingly, 99.22% blood relationship of the introduced ancestors is equivalent to the imported high-yielding breed. Based on this new strain, a family line is established, and a high-yielding laying hen matching line is obtained after systematic selection. The invention makes full use of the existing excellent genetic resources of high-yield laying hens, greatly shortens the breeding period, reduces cumbersome operation steps such as combining ability determination, and improves breeding efficiency. At the same time, the external blood can be opened according to the latest research results of international mainstream high-yield laying hen breeds to further improve its production performance, speed up the cultivation of high-production performance laying hen breeds in my country, and improve the core competitiveness of my country's laying hen seed industry.
Description
technical field [0001] The invention belongs to the technical field of poultry seed production, and in particular relates to a new strain of modern high-yield laying hens, a breeding method and application. Background technique [0002] In view of the large gap between my country and foreign countries in terms of high-yield laying hens, it mainly relies on the introduction of breeds from foreign breeding companies. However, foreign breeding companies only provide a single sex for the purpose of monopolizing breeds and prices. As a result, my country must introduce breeds every year. It has been subject to foreign monopoly companies for a long time, which seriously threatens the strategic security of my country's livestock and poultry varieties. In order to fundamentally get rid of the dependence on foreign varieties. The present invention aims to provide a method for cultivating high-yield laying hens and its supporting application, that is, a method for cultivating a modern...
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IPC IPC(8): A01K67/027
CPCA01K67/02
Inventor 康相涛田亚东李转见王彦彬刘小军闫峰宾蒋瑞瑞孙桂荣韩瑞丽李国喜
Owner HENAN AGRICULTURAL UNIVERSITY