8CORBET N J,BUMS B M,CORBET D H,et al. Genetic variation in growth, hormonal and seminal traits of young tropically adapted bulls [J]. Proc Assoc Adv Anim Breed Genet,2009,18:121-124.
9LIU X Y,JU Z H,WANG L L,et al. Six novel single-nucleotide polymorphisms in SPAG 11 gene and their associations with sperm quality traits in Chinese Holstein bulls [J]. Anim Reprod Sci,2011,129:14-21.
10YANG W C,TANG K Q,YU J N,et al. Effects of Mbo II and BspM I polymorphisms in the gonadotropin releasing hormone receptor (GnRHR) gene on sperm quality in Holstein bulls [J]. Mol Biol Report,2011,38:3411-3415.
