Cross breeding method for new-American-line boars and new-Canadian-line sows

A technology for boars and sows, applied in animal husbandry, etc., can solve problems such as poor pork quality, achieve large litter size, fast growth, and ensure economic value and feeding value

Inactive Publication Date: 2017-05-17
贵阳富之源农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to technical problems in breeding, the quality of pork in the Chinese market is still at a relatively poor level, while high-quality lean pork mainly relies on imports, and the breeding of improved varieties is in a bad cycle of "introduction-maintenance-degradation-reintroduction"

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] 1. Selection of the first generation of New American Duroc boars and New Canada Large White sows:

[0067] (1) Selection of New American Duroc boars: To select purebred New American Duroc boars, the selection criteria should meet the following characteristics:

[0068] a. The coat of the whole body is brownish red or golden yellow, with different shades. The ears are medium and large, leaning forward, the body is long and thin, the chest is wide and deep, the muscles are plump, the limbs are strong and strong, the hooves are black, the back is arched, and the belly line straight;

[0069] b. Strong physique, strong limbs, good combination of body parts, strong sexual desire;

[0070] c. For boars used for artificial insemination, the average ejaculate volume should exceed 250ml, the motility of sperm should be over 80%, the deformity rate should be lower than 18%, and the sperm density should not be lower than 180 million / ml;

[0071] d. It is not possible to use bloo...

Embodiment 2

[0099] 1. Selection of the first generation of New American Duroc boars and New Canada Large White sows:

[0100] (1) Selection of New American Duroc boars: To select purebred New American Duroc boars, the selection criteria should meet the following characteristics:

[0101] a. The coat of the whole body is brownish red or golden yellow, with different shades. The ears are medium and large, leaning forward, the body is long and thin, the chest is wide and deep, the muscles are plump, the limbs are strong and strong, the hooves are black, the back is arched, and the belly line straight;

[0102] b. Strong physique, strong limbs, good combination of body parts, strong sexual desire;

[0103] c. For boars used for artificial insemination, the average ejaculate volume should exceed 250ml, the motility of sperm should be over 80%, the deformity rate should be lower than 18%, and the sperm density should not be lower than 180 million / ml;

[0104] d. It is not possible to use bloo...

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Abstract

The invention relates to a breeding method for new strain piglets, in particular to a cross breeding method for new-American-line boars and new-Canadian-line sows. By conducting cross breeding between the new-American-line boars and the new-Canadian-line sows for three generations, third-generation cross-bred piglets are obtained, and the third-generation cross-bred piglets are improved new-Canadian-line piglets. The improved new-Canadian-line piglets have advantages of being rapid in growth rate, high in fecundity and adaptability, and meanwhile, the meat of the piglets tastes delicious, delicate and mellow, and the economic value and the feeding value are ensured.

Description

technical field [0001] The invention relates to a breeding method of a new strain of piglets, in particular to a hybrid breeding method of a Xinmei boar and a Xinjia sow. Background technique [0002] The development of pig breeding industry is not only a strategic task of agricultural industrial structure adjustment, but also a major measure to improve consumption structure and improve people's health level. With the development of my country's economy and the improvement of people's living standards, the proportion of meat consumer goods in people's lives is also increasing, and pork consumption accounts for more than 60% of meat consumer goods. When people consume pork, not only the "quantity" has increased, but also higher requirements for "quality", paying more attention to nutritious and safe meat, and at the same time paying more and more attention to the flavor of meat [0003] my country is a traditional pig producing country in the world, and almost half of the pi...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 肖建春奉天水皮兴启
Owner 贵阳富之源农业科技有限公司
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