Estimation of genetic parameters and season effects for semen traits in three pig breeds of South China.

摘要: The economic profitability of a boar station largely depends on semen quantity and quality traits. However, genetic analysis traits has not yet been done in the population China. In this study, we aimed to estimate parameters for influence seasons these by using data Duroc, Landrace Yorkshire boars South following four were analysed: volume (ml; VOL), sperm concentration (106 /ml; DEN), motility (MOT) percentage abnormal (ABN). Genetic season effects estimated simultaneously each breed multiple-trait (4 × 4) repeatability animal model. had moderate heritability with average estimates 0.23, 0.28, 0.26 0.17 across three breeds, respectively. correlations among differed breeds. particular, Yorkshire, nearly genetically independent. collecting significant impact except ABN Duroc (Bonferroni adjusted p < 0.05/6). heritabilities indicate possibility effective selection Different breeds suggest that strategy should be investigated separately breed. Some necessary actions taken reduce