[Objective]The influencing factors of semen quality of breeding boars were studied by analyzing the semen quality parameters of breeding boars at boar stations,so as to provide the theoretical basis for efficient production of semen.[Method]The semen quality data of the boar station in the whole year of 2020 were collected,the influences of month,season,breed and semen collection interval on the semen quality were analyzed.[Result]The semen volume was lower from April to July,the semen volume was higher from October to December.The sperm density and sperm viability were from January to April,and they were higher from May to December,the semen quality of the boars were the best from October to December.The semen volume,sperm density and sperm vitality were the lowest in spring,and they in the autumn and win-ter were better than those in spring and summer.In terms of different breeds,the semen volume and sperm density of Landrace pigs were better than Yorkshire pigs and Duroc pigs.The sperm vigor of Yorkshire pigs was better than that of Landrace pigs and Duroc pigs.[Conclusion]The semen quality of Landrace pigs was the best,the semen quality of Duroc pigs was the worst.The semen collection intervals had larger effects on the semen quality,and the semen quality was best at the semen collection intervals of 4-7 d.
维普
万方数据