Method for evaluating semen grade of Bashang long-tail breeder cock

A technology for grading and long-tailed chickens, applied in the field of poultry breeding, can solve the problems of poor operability, affecting the efficient use of breeder cock selection, and no comprehensive comparison, etc., to achieve strong operability, improve reproductive performance, reduce The effect of feeding amount

Pending Publication Date: 2021-01-01
HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

The evaluation of the rooster semen is only to judge whether the cock can be used as a seed according to the qualitative description of these indicators and the minimum value requirements of the quantitative indicators, or to judge the quality of the rooster semen according to a certain ...

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  • Method for evaluating semen grade of Bashang long-tail breeder cock
  • Method for evaluating semen grade of Bashang long-tail breeder cock
  • Method for evaluating semen grade of Bashang long-tail breeder cock

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Embodiment

[0032] The method for assessing the semen quality of long-tailed chicken breeders in Bashang is based on the effects of sperm motility, semen collection and sperm concentration on the breeding value of cocks and the fertilization rate of hens, as well as their genetic characteristics and rules. Weighted value, the three indicators of sperm motility, semen collection and sperm concentration are integrated into a rooster semen grade index:

[0033] Breeding rooster semen grade index = 58.42 × semen volume + 78.55 × sperm motility + 1.48 × sperm concentration, (1)

[0034] (1) In the formula: the amount of semen collected is in mL, the motility of sperm is evaluated on a scale of 0 to 1, and the concentration of sperm is in billions / mL;

[0035] The reproductive performance of the evaluated rooster is judged by the size of the semen grade index of the breeding rooster. The larger the semen grade index of the breeding rooster, the better the reproductive performance of the roost...

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Abstract

The invention relates to a method for evaluating the semen grade of Bashang long-tail breeder cocks, the method comprises steps of respectively giving different weighted values according to the influence of sperm motility, sperm collection quantity and sperm concentration on cock breeder value, hen fertilization rate and hereditary characteristics of cocks, and synthesizing the weighted values into a breeder cock semen grade index, namely a breeder cock semen grade index, wherein the breeder cock semen grade index is equal to 58.42*semen collection quantity+78.55*sperm motility+1.48*sperm concentration, and evaluating the reproductive performance of the breeder cock according to the breeder cock semen grade index. Because the breeder cock semen grade index is in strong positive genetic correlation with the semen quality, the quality of the long-tailed breeding cock semen on the dam is judged according to the genetic correlation, selection and retention are judged, the quality of the semen is objectively evaluated, the selection accuracy and operability are improved, the quality of the breeding cock semen can be improved generation by generation according to the selection, the genetic progress of breeder cock selection is accelerated, so that the reproductive performance, the breeding value and the economic benefit of the long-tail chickens on the dam are improved.

Description

technical field [0001] The invention relates to the technical field of poultry breeding, in particular to a method for evaluating the semen grade of Bashang long-tailed chicken breed roosters. Background technique [0002] Bashang long-tail chicken is mainly produced in the Bashang area of ​​northern Hebei Province. It has the characteristics of cold resistance, rough feeding resistance, and strong adaptability. There are two main inspection methods for semen quality of Bashang long-tailed chicken breeder roosters: naked eye observation and microscope inspection. The main indicators of naked eye observation are the color, smell, semen volume and pH of the semen; Rate, density, concentration and deformity rate, etc. The evaluation of rooster semen is only to judge whether the cock can be used as a seed according to the qualitative description of these indicators and the minimum value requirements of the quantitative indicators, or to judge the quality of the rooster semen ac...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/02G06F17/18G06F17/11
CPCG06Q10/06395G06Q50/02G06F17/11G06F17/18
Inventor 朱文进苏咏梅周晓李祥龙李可强
Owner HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
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