Breeding and raising method of multi-rib tri-hybrid pigs

Abstract

The invention provides a breeding and raising method of multi-rib tri-hybrid pigs. The breeding and raising method comprises the following steps: constructing a basic breeding group; breeding male pigs and female pigs for matching and farrowing; breeding piglets and seed selection; repeating matching and farrowing as well as seed selection. By the use of a multi-rib control major gene breeding technology, a high-level and large-scale Duroc core group is subjected to systematic breeding combined with gene breeding and conventional breeding, so that a new series of multi-rib, rapid-growing and high-meat-yield high-quality breeding pigs can be bred. The capability of independent innovation of the breeding pig enterprises of China is greatly improved, the core competitiveness of the breeding pig enterprises of the district and even China is enhanced, and a foundation is laid for creating a high-quality and high-end breeding pig culture base; meanwhile, a high-quality breeding pig source is supplied to live pig production of China, and the breeding and raising method has a giant market requirement and wide application and popularization prospect.

Description

technical field [0001] The invention relates to a breeding method for a new pig strain, in particular to a breeding and feeding method for multi-rib three-way hybrid pigs. Background technique [0002] Pigs belong to vertebrates. The spine of pigs is divided into cervical, thoracic, lumbar, sacral and coccyx. The number of cervical, sacral and coccyx of pigs is relatively fixed, while the number of thoracic and lumbar vertebrae is different. The thoracic vertebra is also commonly known as ribs. The number of pork ribs is an important economic trait, and its heritability is as high as 0.6 or more. The number of ribs is significantly related to the carcass length of pigs. With the increase of the number of ribs, the carcass length of pigs also increases accordingly. Each increase in the number of ribs can increase the body length by about 80mm, and the meat production of pigs has also been improved. corresponding increase. [0003] Although there are patents to create a new ...

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Problems solved by technology

[0004] However, the key genetic loci of rib number have not yet been used to re-verify the breeding effect in the three current mainstream commercial pig breeding core populations, including Duroc, Landrace, and Large White, and the gene is determined according to the breeding goals of new strains. Parameter weight in the breeding pig selection index, combining genetic breeding technology and breeding technology, establishing a comprehensive breeding evaluation model for multi-ribbed lean meat pigs, breeding large-scale breeding pig core groups, cultivating new lines of multi-ribbed breeding pigs, and Carry out multiplication, demonstration and promotion

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