Estimation of genetic parameters of semen characteristics and reproductive traits in AI boars
Language English Country Netherlands Media print
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
15721663
DOI
10.1016/j.anireprosci.2004.05.023
PII: S0378-4320(04)00128-9
Knihovny.cz E-resources
- MeSH
- Models, Genetic * MeSH
- Sperm Motility genetics physiology MeSH
- Animals, Newborn MeSH
- Sperm Count veterinary MeSH
- Swine genetics physiology MeSH
- Semen physiology MeSH
- Spermatozoa physiology MeSH
- Insemination, Artificial veterinary MeSH
- Litter Size genetics physiology MeSH
- Animals MeSH
- Check Tag
- Male MeSH
- Female MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
(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.
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