Breeding method for raising farrowing rate of Congjiang pigs

A breeding method and technology of farrowing rate, applied in the field of animal husbandry and breeding, can solve the problems of no hybridization, low lean meat rate, low feed utilization rate, etc. Effect

Inactive Publication Date: 2019-01-11
GUIZHOU INST OF ANIMAL HUSBANDRY & VETERINARY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Congjiangxiang pigs have slow growth, low litter size, generally 5-6 heads, low feed utilization rate, and low lean meat rate, which limit the development of its industry
However, there is currently no technical plan for crossing the two breeds of Congjiangxiang pig and Meishan pig.

Method used

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  • Breeding method for raising farrowing rate of Congjiang pigs
  • Breeding method for raising farrowing rate of Congjiang pigs
  • Breeding method for raising farrowing rate of Congjiang pigs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of breeding method that improves Congjiangxiang pig farrowing rate concrete steps are as follows:

[0018] 1. Male parent selection: select the breeding boar (M♂) of the purebred Meishan pig and the breeding boar (X♂) of the purebred Congjiangxiang pig.

[0019] 2. Selection of female parent: Select breeding sows (X♀) of purebred Congjiang Xiang pigs.

[0020] 3. Crossbreeding: Select a breeding boar (M♂) of Meishan pig with good traits and a breeding sow (X♀) of Jiangxiang pig with good traits to cross, and get litter from the breeding sow (X♀) of Jiangxiang pig MXF1 generation.

[0021] 4. Backcrossing: Backcrossing the female parent with excellent traits in the MXF1 generation and the purebred Congjiangxiang pig boar (X♂) with excellent traits was carried out to obtain the MXF2 generation.

[0022] 5. Intragroup mating: The female parent and male parent with excellent traits of the MXF2 generation were mated within the group until the F3 generation.

[0023...

Embodiment 2

[0032] 1. Male parent selection: select the breeding boar (M♂) of the purebred Meishan pig and the breeding boar (X♂) of the purebred Congjiangxiang pig.

[0033] 2. Selection of female parent: Select breeding sows (X♀) of purebred Congjiang Xiang pigs.

[0034] 3. Crossbreeding: Select a breeding boar (M♂) of Meishan pig with good traits and a breeding sow (X♀) of Jiangxiang pig with good traits to cross, and get litter from the breeding sow (X♀) of Jiangxiang pig MXF1 generation.

[0035] 5. Intragroup mating: The female and male parents with good traits of the MXF1 generation were mated within the group until the MXF2 generation.

[0036] 6. Feeding and management: Breeding according to conventional methods.

Embodiment 3

[0038] A kind of breeding method that improves Congjiangxiang pig farrowing rate concrete steps are as follows:

[0039] 1. Male parent selection: select the breeding boar (M♂) of the purebred Meishan pig and the breeding boar (X♂) of the purebred Congjiangxiang pig.

[0040] 2. Selection of female parent: Select breeding sows (X♀) of purebred Congjiang Xiang pigs.

[0041] 3. Crossbreeding: Select a breeding boar (M♂) of Meishan pig with good traits and a breeding sow (X♀) of Jiangxiang pig with good traits to cross, and get litter from the breeding sow (X♀) of Jiangxiang pig MXF1 generation.

[0042] 4. Backcrossing: Backcrossing the female parent with excellent traits in the MXF1 generation and the purebred Congjiangxiang pig boar (X♂) with excellent traits was carried out to obtain the MXF2 generation.

[0043] 5. Secondary backcrossing: backcross the female parent with excellent traits in the MXF2 generation and the purebred Congjiangxiang pig breeding boar (X♂) with ex...

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Abstract

The invention discloses a breeding method for raising the farrowing rate of Congjiang pigs, which comprises the following steps: S1, male parent selection: breeding boars M(male) are selected from purebred Meishan pigs, and breeding boars X(male) are selected from purebred Congjiang pigs; S2, female parent selection: breeding sows X(female) are selected from purebred Congjiang pigs; S3, hybridization: fine Meishan breeding boars M(male) and fine Congjiang breeding sows X(female) are selected for hybridization, and the Congjiang breeding sows X(female) farrow to obtain an F1 generation; S4, back-crossing: fine female pigs in the F1 generation and purebred Congjiang breeding boars X(male) are selected for back-crossing to obtain an F2 generation; and S5, intra-group copulation: fine female pigs and male pigs in the F2 generation are selected for intra-group copulation to obtain an F3 generation. The farrowing rate of Congjiang pigs can be improved without changing the shape and weight ofCongjiang pigs, and the average farrowing rate is increased to 10.33. Moreover, the meat quality of Congjiang pigs is improved.

Description

technical field [0001] The invention belongs to the technical field of animal husbandry and reproduction, and in particular relates to a method for breeding high-yielding fragrant pigs. Background technique [0002] Congjiang Fragrant Pig is a breed protected by the national genetic resources of livestock and poultry. It is a high-quality local pig breed that has been selected and bred for a long time under specific natural environmental conditions. Its central production area is located in Congjiang County, Guizhou Province. Type pig breed. It has excellent characteristics such as small size, early maturity and easy fattening, strong fat sinking ability, tender meat, delicious taste, rich in trace elements, stable genetics, good adaptability, strong disease resistance, and resistance to rough feeding. Congjiang Xiang pig sows have good maternal sex, high conception rate, and good lactation ability. They are the best local pig breeds for popularization and application. How...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 韩雪张雄付晓利粟朝芝黄波
Owner GUIZHOU INST OF ANIMAL HUSBANDRY & VETERINARY
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