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Method for breeding high-quality pig complete set line by aid of Tibetan pigs

A pig matching system and matching system technology, applied in the field of breeding, can solve the problems of Tibetan pigs such as small size, few litters, and slow growth, and achieve the effects of excellent meat quality, well-developed legs and hips, and high production efficiency

Active Publication Date: 2013-11-06
铁骑力士食品有限责任公司
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AI Technical Summary

Problems solved by technology

However, Tibetan pigs have disadvantages such as small size, slow growth, and few litters.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Combining Ability Determination:

[0022] The design of Jingwei hybridization experiment was adopted, male parent: Duroc pig (S04), Berkshire pig (S05); female parent: Zangmei synthetic line (F01), Duzangmei hybrid pig (CH41), Bazangmei hybrid pig (CH51) ). A total of 6 hybrid combinations were set up: S04×F01, S05×F01, S04×CH41, S05×CH51. Six litters were randomly prepared for each combination, and 2 barrows were selected for each litter. A total of 72 test pigs were tested for matching. The results are shown in Table 1.

[0023] Table 1 Combining ability determination results ( )

[0024] hybrid combination Number of samples Up to 90kg body weight in days (d) material to weight ratio Ketone Body Lean Meat Rate (%) Intramuscular fat content (%) Muscle fiber diameter (μm) Tenderness (g) composite index S04×F01 12 223.25±15.17 3.43±0.26 51.30±1.88 4.19±0.31 80.05±6.08 5552.83±464.12 -0.51 S05×F01 12 210.75±8.45 3.31±0.17 ...

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Abstract

The invention discloses a method for breeding a high-quality pig complete set line by aid of Tibetan pigs. The method includes steps: (1) the Tibetan pigs and Meishan pigs serve as breeding materials to breed a synthetic line, namely a Tibetan-Meishan synthetic line, and the Tibetan-Meishan synthetic line serves as female parents of the complete set line; (2) Berkshire pigs serve as the first male parents of the complete set line, the Tibetan-Meishan synthetic line serves as the female parents, and sows of the parents' generation of the complete set line are obtained after hybridization; (3) durocs serve as terminal male parents to be hybridized with the sows of the parents' generation to obtain high-quality commercial pigs of the complete set line. Pigs in the complete set line bred in the method are identical in body forms and appearances, hair on the whole pig bodies is black, and brown pigs and white pigs are few; heads of the pigs are light, mouths of the pigs are straight, and ears of the pigs are median in size; backs and bellies of the pigs are flat and straight, body and limb combination is good, and legs and buttocks are well developed. The meat quality is good, production efficiency is high, weight of the pigs can reach 90 kg at 187.22 days of age, the feed conversion rate is 3.14, the lean meat percentage is 57.72%, and the intramscular fat content is 4.07%.

Description

technical field [0001] The invention belongs to the technical field of breeding, and in particular relates to a method for cultivating high-quality pig matching lines by using Tibetan pigs. Background technique [0002] A lot of practice has proved that: my country's local pig breeds have strong stress resistance, early maturity and easy fattening, and are especially famous for their excellent quality such as tender and delicious meat. But there are also disadvantages, that is, slow growth and low lean meat rate. For example, the results of the growth and development of Taihu pigs in my country show that the daily gain is 438 grams, the lean meat rate is 43.97%, and the feed conversion rate is 4.1. It is not suitable for the needs of my country's pig production development. [0003] In today's pig production in the world, the breeds used are mainly Landrace pigs, Large White pigs, Duroc pigs, Hampshire pigs, Pietrain pigs and Berkshire pigs, which have fast growth, high f...

Claims

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Application Information

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IPC IPC(8): A01K67/02
Inventor 吕学斌何志平刘锐龚建军应三成顾以韧杨跃奎康润敏
Owner 铁骑力士食品有限责任公司
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