Seed selection method for new double muscle rump strains of large Yorkshire pigs

A technology of double-muscled buttocks and a new strain, which is applied in animal husbandry and other fields, can solve problems such as a drop in the bucket and a small number of double-muscled buttocks, and achieve the effects of fast growth, more lean meat, and better meat quality

Active Publication Date: 2015-03-04
樟树市双胞胎猪业有限公司
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AI Technical Summary

Problems solved by technology

However, due to the small number of double-muscled buttocks imported from breeding pig farms in Jiangxi

Method used

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Embodiment Construction

[0025] The principles and features of the present invention will be described below in conjunction with specific embodiments, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0026] The breeding method of the new strain of large Yorkshire pig with double-muscled buttocks comprises the following steps:

[0027] Step 1. Select 10 large Yorkshire boars of 6 bloodlines and 60 sows of 6 lineages from the large Yorkshire breeding herd in the pig farm to form the zero generation as the zero generation;

[0028] Step 2. Breed the zero-generation Yorkshire boars and sows. Each Yorkshire boar is mated with 6 sows. All the breedings are artificially inseminated and inbreeding is avoided. The estrus is mated twice a day, and then From the resulting pig herd of the next generation, 10 boars and 60 sows with double muscular buttock traits were selected to form the first generation breeding core group; ...

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Abstract

The invention discloses a seed selection method for new double muscle rump strains of large Yorkshire pigs. The seed selection method comprises the following steps of 1, selecting individuals with obvious double muscle rump characters from a large Yorkshire pig swinery in a pig farm to form seed selection core group serving as a generation zero; 2, performing hybridization on male large Yorkshire pigs and female large Yorkshire pigs of the generation zero to produce swinery of the next generation, and selecting individuals with obvious double muscle rump characters from the swinery of the next generation to form a first-generation seed selection core group; 3, performing hybridization on standby male and female pigs of the first-generation seed selection large Yorkshire pigs to produce swinery of the next generation, and selecting individuals with obvious double muscle rump characters from the swinery of the next generation to be a second-generation seed selection core group; 4, repeating the step 3, and performing seed selection to obtain the new double muscle rump strains of the large Yorkshire pigs which have the appearance of double muscle rump characters on and can be stably genetic after 3-4 generations, wherein one generation is generated in one year. The new strains of the pigs have the advantages of high growth speed, high feed conversion rate, much lean, high meat quality, high reproductive capacity and the like.

Description

technical field [0001] The invention relates to the technical field of stockbreeding and breeding, in particular to a breeding method for a new line of large Yorkshire pig with double-muscled buttocks. Background technique [0002] The Great Yorkshire pig, also known as the Large White pig, originated in the United Kingdom and is one of the most famous and widely distributed lean-meat pig breeds in the world. Because of its large litter size, high lactation ability, and strong maternal instinct, it is often used as the first round of hybrid female parent in the production of commercial lean pigs at home and abroad. [0003] Due to the large eye muscle area of ​​double-muscle buttock pigs and well-developed buttock muscles, the carcass has a high lean meat percentage. Therefore, it has attracted much attention in the process of breeding lean pigs in recent years. After Belgium bred the double-muscled hip breed - Pietrain pig, the United States, Canada and other developed co...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 勇仲根侯家敏陆启森
Owner 樟树市双胞胎猪业有限公司
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