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Hybrid production method of high-quality pigs

A production method and high-quality technology, applied in the field of animal genetics and breeding, can solve the problems of slow growth and development, middle to low fecundity, etc., and achieve the effects of fast growth and development, high fecundity, and high lean meat rate

Inactive Publication Date: 2020-04-17
ANIMAL SCI RES INST GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tibetan pigs have the characteristics of excellent meat quality and strong stress resistance, but there are disadvantages such as low-to-medium fecundity and slow growth and development.

Method used

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  • Hybrid production method of high-quality pigs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A hybrid production method for high-quality meat pigs, comprising the following steps:

[0027] S1. Preparatory work before hybrid production: (1) Breeding of Duroc boars: 8 Duroc boars and 40 sows were introduced to form a breeding base group, and conventional breeding methods were used for selection and matching. Duroc boars with high lean meat rate, fast growth, good meat quality, pure genes, no halothane gene, strong physique, and good development are selected for subbreeding for hybrid production. The selected Duroc boars reach The age of the 100kg body weight is less than 165 days, and the lean meat rate is greater than 64.22%; (2) Breeding of Guangdong small-eared pigs: introduce 8 Guangdong small-eared male pigs and 40 sows, and establish a basic breeding group, using conventional breeding methods Carry out seed selection and matching, through group subbreeding, select sows with docile motherhood, strong fecundity, obvious estrus symptoms, good breast-feeding pe...

Embodiment 2

[0037] A hybrid production method for high-quality meat pigs, comprising the following steps:

[0038] S1, preparations before hybrid production are the same as in Example 1;

[0039] S2. Using the healthy American Duroc boar in step S1 as the male parent and the healthy Guangdong Microtia sow as the female parent, carry out crossbreeding through artificial insemination, and select and breed Du Hua binary hybrid pigs;

[0040] S3. Using the healthy Tibetan boar in step S1 as the male parent and the healthy Duhua dual-element sow in step S2 as the female parent, carry out crossbreeding through artificial insemination, and select Tibetan Duhua three-element hybrid pigs;

[0041] S3. The three-generation cross-breeding pigs with healthy body and health in step S2 were fixed to obtain high-quality meat pigs.

[0042] In this embodiment, the feeding methods of the mating boar, mating sow and piglets are the same as in Embodiment 1.

experiment example 1

[0043] Experimental example 1 reproductive performance test

[0044] The pure breeding test was carried out on the high-quality meat pigs bred in Example 1 and Example 2 respectively, and their litter size and litter live piglet size were recorded respectively, and American Duroc pig, Tibetan pig and Guangdong small ear The pure breeding test of Huazhu was used as a control, and the results are shown in Table 1.

[0045] As can be seen from Table 1, compared with American Duroc pigs and Tibetan pigs, the high-quality meat pigs cultivated by the present invention have significantly improved litter size and live piglet size, and the litter size is comparable to that of Guangdong. The small-eared piglets are equivalent, but the number of live piglets born in a litter is increased; it can be seen that the high-quality meat pigs bred by the present invention have good reproductive performance.

[0046] Table 1 Reproductive performance test results (mean ± SD)

[0047]

[0048]...

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Abstract

The invention relates to a hybrid production method of high-quality pigs, and belongs to the field of genetic breeding of animals. Duroc pigs are adopted as male parents, Guangdong small-ear spotted pigs are adopted as female parents, then the first-filial generations which are Duroc-spotted binary hybrid pigs are adopted as female parents, Tibetan pigs are adopted as male parents, and hybridization is performed so as to obtain the high-quality pigs finally. The high-quality pigs inherits a high growth rate and a high feed utilization rate of the American Duroc pigs, adaption to high-temperature and moist environments, high fertility, good suckling performance of sows and a long service life of the Guangdong small-ear spotted pigs, good pork quality of the Tibetan pigs and other excellentqualities. It is shown through tests on reproductive performance, growth performance, slaughter performance and pork quality performance that the high-quality pigs have the following advantages of high reproductive power, large size, fast growth and development, a high feed utilization rate, a high rate of lean pork, good pork quality, fresh and tender pork, unique flavor and suitability for popularization and feeding.

Description

technical field [0001] The invention relates to a hybrid production method of high-quality meat pigs, belonging to the field of animal genetics and breeding. Background technique [0002] Chinese local pig breeds have excellent meat quality, with an intramuscular fat content of more than 3%, or even as high as 6% to 7%. Foreign lean pig breeds grow fast, but their meat quality is not good. Duroc pig is an exotic breed. Duroc pig is famous for its fast growth rate, high feed utilization rate and strong meat production performance. It is the main hybrid parent of pig production in the world today, especially the terminal male parent. At present, most of the Duroc breeding pigs raised in my country are American and Taiwanese. The Taiwanese Duroc has better body plumpness and a higher lean meat percentage, but its reproductive performance is poor and its growth rate is low; while the American Duroc's reproductive performance It is more prominent and grows faster, but the lean me...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 胡斌李剑豪杜宗亮马现永孟繁明李宝红程蕾燕辛海云
Owner ANIMAL SCI RES INST GUANGDONG ACADEMY OF AGRI SCI
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