Estimation of genetic parameters of semen characteristics and reproductive traits in AI boars

被引：56

作者：

Smital, J ^{[1
]}

Wolf, J ^{[1
]}

De Sousa, LL ^{[1
]}

机构：

[1] Res Inst Anim Prod, CZ-10401 Prague, Czech Republic

来源：

ANIMAL REPRODUCTION SCIENCE | 2005年 / 86卷 / 1-2期

关键词：

pig-male reproduction; semen characteristics; genetic parameters;

D O I：

10.1016/j.anireprosci.2004.05.023

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

(Co)variance components and further genetic parameters of boar semen characteristics and reproductive traits were estimated using the REML procedure applied to multi-trait animal models. The calculations were based on data from 210,733 ejaculates stemming from 2862 AI boars and collected from 1990 to 1997 in insemination stations for boars in the Czech Republic. Equal model equations for all traits included the AI station and the breed or breed combination as fixed effects, the interval between two collections for the boar as covariable and the animal and residual effects as random effects. The following heritabilities were estimated: semen volume 0.58, sperm concentration 0.49, progressive motion of spermatozoa 0.38, abnormal spermatozoa 0.34, number of total spermatozoa 0.42, number of insemination doses 0.40, number of piglets born alive 0.08, total number of piglets born 0.05 and conception rate 0.29. Heritabilities and genetic correlations were estimated on average values for each boar. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：119 / 130

页数：12

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