Chanyuth Tretipskul
(Chulalongkorn University, 2012)
The factors influencing of boar semen production were evaluated a total of 19,966 ejaculates from 517 PRRS free boars (2 purebred; 164D, 31P) and (2 crossbred; 268LY, 54PD). Semen parameters; volume (ml), sperm concentration ...