Molecular breeding method aiming at body size character and application of molecular breeding method

A trait and molecular technology, applied in the field of livestock breeding, can solve problems such as reducing the genetic progress of growth traits, and achieve the effect of promoting genetic improvement and improving production performance

Active Publication Date: 2022-04-12
SHENZHEN JINXINNONG FEED
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, independent selection for body size traits will reduce the genetic pro

Method used

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  • Molecular breeding method aiming at body size character and application of molecular breeding method
  • Molecular breeding method aiming at body size character and application of molecular breeding method
  • Molecular breeding method aiming at body size character and application of molecular breeding method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0044] Example 1

[0045] In this example, the growth performance of the large white pig is measured in the pig field, while the size of the pigs is measured, and the total number of births of childbirth is collected, and the number of people who produce the number and other reproduction data. After collecting data, correct the age, back to thick, body length, and body height, calculate 100kg body weight, up to 100kg body weight, total number of bodies, up to 100kg body weight and up to 100kg body weight 5 Breeding value of traits. According to the breeding objectives of the breeding field and the focus of breeding, the character should be weighted according to certain weights, and finally obtain a comprehensive selection index. Finally, the seed pig selection and optional breeding work is performed according to the comprehensive selection index. The specific method is as follows:

[0046] (1) Determination of large white pigs to the measurement standards, while determining the si...

Example Embodiment

[0082] Experimental Example 1

[0083] The effects of pork were subjected to the selection and option of the signs of the stroke to the integrated selection index to evaluate the effects of the method. This experimental case is conducted based on a large white pig in a core breeding ground in Fujian.

[0084] The following table shows the ten-head individuals that are excellent in the target groups, which are excellent in selection of pigmentation performance (capabilities), wherein index 1 (index1) is a comprehensive selection index that does not include a size, index2 (index2) is a body foot. Comprehensive selection index of traits. Retention and options can be obtained in accordance with the comprehensive selection index including the size of the size.

[0085] It can be seen that a comprehensive selection index of the growing performance is more accurate to obtain a well-measured individual, which is more accurate, and more accurate, a comprehensive selection index that consid...

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Abstract

The invention relates to the technical field of livestock breeding, in particular to a molecular breeding method aiming at body size characters and application of the molecular breeding method. The molecular breeding method comprises the following steps: evaluating the breeding capability of pigs by simultaneously adopting growth shapes, breeding traits and body size traits; the body size characters comprise the body length and the body height; the growth traits comprise day age and backfat thickness, and the reproduction traits comprise total litter size. According to the present invention, the body size type character is incorporated into the existing breeding pig genome selection molecular breeding scheme, the genetic evaluation results of the body size type character and the growth and reproduction character are integrated, the breeding ability of the pig is evaluated, and the breeding method is further applied to breeding of the breeding pig so as to obtain the breeding method for evaluating the breeding ability of the pig; the method is of great significance to breeding of large boars in the future.

Description

technical field [0001] The invention relates to the technical field of livestock breeding, in particular to a molecular breeding method for body size traits and its application. Background technique [0002] At present, in the existing genetic evaluation system of breeding pigs, only the three traits of corrected age (up to 100kg body weight age), corrected backfat thickness (up to 100kg body weight backfat thickness) and total litter size are mainly evaluated and selected. Among them, for the large white pigs and Landrace pigs of the female line, the genetic evaluation and selection of the three traits are carried out at the same time; for the Duroc of the male line of pigs, the genetic evaluation and selection are only carried out for the corrected age and corrected backfat thickness. However, the large white, landrace and duroc in many breeding farms currently have the problem of short body size and few sow teats, which seriously affect the lactation performance of sows a...

Claims

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Application Information

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IPC IPC(8): A01K67/02
Inventor 冯文杨华威方铎刘剑锋周磊赵祖凯曾新斌
Owner SHENZHEN JINXINNONG FEED
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