Bama miniature pig selective breeding method

A technology of Bamaxiang pigs and breeding pigs, applied in the field of animal genetics and breeding, to achieve the effect of reducing the thickness of backfat

Inactive Publication Date: 2017-06-30
SHENZHEN JINXINNONG FEED
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the technical problem of how to increase the total litter size per litter without affecting

Method used

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Embodiment Construction

[0024] The present invention will be further described below in combination with preferred embodiments.

[0025] A method for breeding Bama fragrant pigs, comprising the following steps:

[0026] S1. A certain proportion of Bamaxiang pig boars and Bamaxiang pig sows form the 0 generation core group, and the boars and the sows are bred while controlling the inbreeding coefficient; specifically, the boars and the sows are mated. The ratio of sows is about 1:50, including 6 boars and 150 sows. In other embodiments, the ratio of boars to sows can be selected to be 1:45-1:60, and the number can be in accordance with the ratio ;

[0027] S2. After the sow gives birth to piglets, select the remaining piglets from each litter of piglets, and measure the daily gain of weaned piglets after the selected piglets are weaned; The daily gain of weight gain to 30kg, in other embodiments, can also reach the daily gain of any weight of 25kg-35kg for piglets from the weaning day;

[0028] S3....

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Abstract

The invention discloses a Bama miniature pig selective breeding method. The method includes the steps that 1, Bama miniature male pigs and Bama miniature female pigs in a certain proportion form 0-generation core groups, the male pigs are mated with the female pigs, and at the same time, the inbreeding coefficient is controlled; 2, after the female pigs produce piglets, each litter of piglets is selected and remained, and the daily gain of each weaning piglet is measured; 3, the piglets whose daily gain is at the top of the list in the same batch are screened out, the comprehensive selection index of the piglets is calculated, and according to the calculation result, parent pigs are selected out; 4, the parent pigs that do not meet the breeding standard are rejected, and a replacement pig immunization plan is set for the screen-out parent pigs; 5, the parent pigs participating in the replacement pig immunization plan replace the same number of male pigs and female pigs needing to be weeded out in the 0-generation core groups, and mating is carried out; 6, the step 2 to the step 5 are repeated, one generation is produced in one year, and after three to four generations, improved Bama miniature pigs are obtained. The average piglet production number of Bama miniature pigs is improved, at the same time, the daily gain, backfat thickness, eye muscle area, intramuscular fat content of the Bama miniature pigs are significantly improved.

Description

technical field [0001] The invention relates to the field of animal genetics and breeding, in particular to a method for breeding Bama fragrant pigs. Background technique [0002] Bamaxiang pigs are produced in remote mountainous areas where local ethnic minorities live in concentrated communities. It is a famous and excellent local breed formed through long-term natural inbreeding and closed breeding. It is a place with a long history of breeding and stable genetics, and is of high quality and rare. Miniature pig breed. It has the characteristics of small size, early sexual maturity, tender and delicious meat, fat but not greasy, extensive breeding, strong adaptability and disease resistance. Adults are 35-45cm tall and weigh only about 40kg. Because of its small size, easy operation, and low feeding costs, the anatomy, physiology, and nutritional metabolism of the skin, heart vessels, digestive tract, immune system, kidneys, eyeballs, and teeth are similar to those of hu...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 魏泓商海涛常凤琴王世强李冲文乐
Owner SHENZHEN JINXINNONG FEED
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