The aim of this study was to compare the difference of normal temperature semen quality of breeding pigs in Hebei Province from 2020 to 2022,and to provide suggestion for storage and dilution of normal temperature semen of breeding pigs in pig farms.From 2020 to 2022,the testing center conducted boar liquid semen quality sampling at the breeding boars station in Hebei Province,collected 577 samples of boar liquid semen at the breeding boars station in Hebei Province from 2020 to 2022,and tested the vitality of the boar semen samples,the number of forward motility sperm and sperm deformity indicators of the breeding pigs.The sperm motility of Duroc,Landrace and Yorkshire in 2022 was significantly higher than that in 2020 and 2021(P＜0.05),and that in 2021 was significantly higher than that in 2020(P＜0.05).The number of forward motile sperm in 2021 was significantly higher than that in 2020 and 2022(P＜0.05),but there was no significant difference between 2020 and 2022(P＞0.05).The number of forward motile sperm in 2020 and 2021 was significantly higher than that in 2022(P＜0.05),and there was no significant difference between 2020 and 2021(P＞0.05).The number of forward motile sperm in 2021 was significantly higher than that in 2020 and 2022(P＜0.05),and there was no significant difference between 2020 and 2022(P＞0.05).The rates of Duroc,Landrace and approximately Yorkshire malformations in 2022 were significantly higher than those in 2020 and 2021,respectively,and those in 2021 were significantly higher than those in 2020(P＜0.05).The room temperature semen vitality and malformation rate of breeding pigs in 2022 were better than those in 2020 and 2021,and the number of forward motility sperm was lower than that in the previous two years,improving semen quality,use efficiency and reducing costs.In Hebei,the transformation and upgrading of some boar stations in terms of personnel skills,intelligent feeding management,and precise quantitative filling equipment have improved the semen quality of breeding pigs at room temperature,and some boar sta-tions have uneven semen dilution,lack of personnel knowledge,and poor intelligent feeding management.
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