
胎次、犊牛性别和初生重及产犊季节对奶牛繁殖性能的影响
王欣荣,刘 婷, 苏东伟, 成述儒, 吴建平
胎次、犊牛性别和初生重及产犊季节对奶牛繁殖性能的影响
#br# Effect of Parity, Calves' Gender, Birth Weight and Calving#br# Season on Reproductive Traits of Holstein Cows
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