海量图书期刊资源，随时随地畅享阅读乐趣
Reproductive performance of repeat breeders in dairy herdsMuhammad Yusuf; Toshihiko Nakao; RMS Bimalka Kumari Ranasinghe; Gokarna Gautam; Su Thanh Long; Chikako Yoshida; Kana Koike; Aki Hayashi · 2010