Method for using Huai pigs to cultivate new pig breed and produce hybrid commercial pigs

A new breed of hybrid pig technology, applied in animal husbandry, etc., can solve the problems of reduced meat quality and reproductive performance, achieve high lean meat percentage and growth speed, and increase growth speed and lean meat percentage

Inactive Publication Date: 2012-07-18
YANGZHOU UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Since the introduced breed pigs have the characteristics of high lean meat rate and fast growth rate, they account for a large proportion of the world's pig industry. The common hybrid combination is Du Dachang or Du Dachang. The development of the pig industry has played a huge role, but in recent decades, the focus of the world's pig breeding is on the lean meat rate and growth rate, resulting in a decline in the quality of the breed and the reduction in reproductive performance. This problem has attracted more and more attention

Method used

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  • Method for using Huai pigs to cultivate new pig breed and produce hybrid commercial pigs
  • Method for using Huai pigs to cultivate new pig breed and produce hybrid commercial pigs
  • Method for using Huai pigs to cultivate new pig breed and produce hybrid commercial pigs

Examples

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Embodiment 1

[0031] Embodiment 1. Using Huai pigs and Berkshire pigs to breed a new strain of Huai pigs containing 50% Huai pig lineage.

[0032] Firstly, introduce Berkshire boars from foreign countries or purchase them from Chinese breeding farms. It is required that their intramuscular fat content is above 3%, free of halothane genes, healthy, and their limbs are well developed. indivual.

[0033] The Huai pigs come from the National Huai Pig Care Base of the Donghai Breeding Farm in Jiangsu Province. The Huai pig sows are required to be multiparous sows, with a total litter size of more than 13, healthy, and more than 7.5 pairs of teats.

[0034] Crossbreed at least 40 Huai pig sows with at least 8 Berkshire boars (the ratio of male to female is about 1:5) to produce Ba×Huai binary hybrid pigs, select 40 Ba×Huai hybrid sows and 8 Touba×Huai hybrid boars (boars from at least 6 different bloodlines) form the zero-generation pig herd bred by the new strain of Huai pigs, and then carry ou...

Embodiment 2

[0040] Example 2 Huai pigs and Berkshire pigs were used to breed a new strain of Huai pigs containing 75% Huai pig lineage.

[0041] First of all, the Berkshire boars from foreign or Chinese breeding farms are required to have an intramuscular fat content of more than 3%, and the purchased boars must contain at least 6 bloodlines.

[0042] The Huai pigs come from the National Huai Pig Care Base of the Donghai Breeding Farm in Jiangsu Province. The Huai pig sows are required to be multiparous, healthy, with strong limbs and feet, with a total litter size of more than 13 and more than 7.5 pairs of teats.

[0043] Crossbreed at least 40 Huai pig sows with at least 8 Berkshire boars (male to female ratio 1:5) to produce Ba×Huai binary hybrid pigs, and then at least 8 Ba×Huai binary hybrid males Pigs were cross-produced with 40 Huai pig sows to form a zero-generation pig herd bred by a new line of Huai pigs consisting of Ba×Huai×Huai hybrid pigs×Huai hybrid boars. The number of ge...

Embodiment 3

[0047] Example 3 A new strain of Huai pig containing 50% Huai pig blood was bred by using Huai pig and Duroc pig.

[0048] First, purchase Duroc boars from foreign or Chinese ancestral breeding farms, which require their intramuscular fat content to be above 3%, healthy, free of halothane genes, bloodlines of ≥8, and more than 6 pairs of teats.

[0049] The Huai pigs come from the National Huai Pig Care Base of the Donghai Breeding Farm in Jiangsu Province. The Huai pig sows are required to be multiparous sows, with a total litter size of more than 13, healthy, and more than 7.5 pairs of teats.

[0050] Crossbreed at least 40 Huai pig sows with at least 8 Duroc boars (male to female ratio 1:5) to produce Du×Huai binary hybrid pigs, select 40 Du×Huai hybrid sows and 8 Duroc ×Huai hybrid boars form the zero-generation pig herd cultivated by the new Huai pig strain, which are cross-crossed and fixed, and the group subculture method is adopted. The number of groups in each generat...

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Abstract

The invention relates to a method for using Huai pigs to cultivate a new pig breed and produce hybrid commercial pigs, which belongs to the field of livestock production. The method includes: hybridizing Huai sows with Berkshire boars or Duroc boars to produce Bahuai or Duhuai two-way crossbred pigs which form a pig group generation zero, wherein the pig group generation zero accounts for 50%of Huai pig origin; or hybridizing the Bahuai or Duhuai two-way crossbred pigs with the Huai pigs again to produce offspring forming a pig group generation zero, wherein the pig group generation zero accounts for 75% of the Huai pig origin; subjecting the pig group generation zero to crossing and fixation, and performing systematic breeding for five to six generations to form the new Huai pig breed. By the method, excellent meat characteristics and reproductive characteristics of the Huai pigs are retained, and breeding speed of the new pig breed, and growth speed and lean percentage of the hybrid commercial pigs are increased to a moderate degree by introducing the exotic pig breeds, Duroc and Berkshire.

Description

technical field [0001] The method for cultivating new strains of pigs and producing hybrid commercial pigs by using Huai pigs involved in the invention belongs to the field of animal husbandry production. Background technique [0002] There are many varieties of pigs, and the varieties are usually divided into local pig breeds, introduced pig breeds and cultivated pig breeds. The production performance of different breeds varies greatly. The production performance of pigs mainly includes growth and finishing performance, reproductive performance, carcass traits and meat quality characteristics. [0003] The "Chinese Pig Breeds Chronicle" published in 1986 records that there are 48 local pig breeds in my country; six types are divided according to the natural agricultural area. Huanghuaihai black pig is one of the 48 breeds, belonging to the North China pig breed among the six major types. Huai pig is one of the main groups of Huang Huai Hai black pig, and it is one of the ...

Claims

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Application Information

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IPC IPC(8): A01K67/027
Inventor 霍永久吴圣龙包文斌任同苏姜建兵杨慈新季香
Owner YANGZHOU UNIV
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