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Breeding method of high-fecundity small-ear spotted pig strain

A fecundity and ear flower technology, applied in animal husbandry and other directions, can solve the problems of low reproductive efficiency and poor uniformity.

Pending Publication Date: 2022-07-05
GUANGDONG YIHAO FOOD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is the key to establish new strains with high reproductive efficiency to explore the breeding methods of high-reproductive strains within the breed and solve the key problems such as low reproductive efficiency and poor uniformity in the large-scale production of small-eared pigs.

Method used

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Embodiment Construction

[0011] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; Embodiments, and all other embodiments obtained by those of ordinary skill in the art without creative efforts, fall within the protection scope of the present invention.

[0012] The breeding method of the high fecundity miniature pig strain of the present invention comprises the following steps:

[0013] 1) Screening of high-productivity Xiaoerhua pig sows in a large group to form a basic group: select excellent individuals who meet the typical characteristics of the breed in the Xiaoerhua pig sow production group, and require sows with uniform black and white hair color, first-born live litters More than 11 pigs, and more than 12 piglets born alive, form a high fec...

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Abstract

The invention discloses a breeding method of a high-fecundity small-ear spotted pig strain. The breeding method comprises the following steps: 1) screening high-fecundity small-ear spotted pig sows in a large group to establish a basic group; 2) expanding propagation and updating of a core group; and 3) locking self-population breeding. The invention belongs to the technical field of breeding of high-fecundity small-ear spotted pigs, and particularly relates to a breeding method of a high-fecundity small-ear spotted pig strain, which comprises the following steps of: accelerating the selection progress by selecting individuals of a core group in a large group and high intensity, selecting excellent individuals in the large group to establish a high-fecundity small-ear spotted pig strain basic group, and breeding the high-fecundity small-ear spotted pig strain basic group. And in the subsequent self-population breeding process, the breeding is carried out by high-intensity selection and reproductive performance expression, so that obvious genetic progress is obtained.

Description

technical field [0001] The invention belongs to the technical field of the selection and breeding of high-productivity small-eared pigs, and particularly relates to a breeding method of high-productivity small-eared pig lines. Background technique [0002] The small-eared pig is a high-quality local breed listed in the provincial livestock and poultry genetic resources protection list. It belongs to a group of the Liangguang small pig, and the Liangguang small pig was included in the "National Livestock and Poultry Genetic Resources Variety" by the National Livestock and Poultry Genetic Resources Committee in 2020. Directory". Small-eared pigs are mainly distributed in the counties and districts of Zhanjiang City and Maoming City in the province. The variety has the characteristics of resistance to roughage and excellent meat quality, but due to uneven production levels, there are also problems such as different levels of reproductive efficiency and low uniformity. Therefo...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 曾检华李闯余海乐刘小红陈瑶生陈生
Owner GUANGDONG YIHAO FOOD
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