共 50 条
- [6] Pregnancy Rates in Repeat-breeder Heifers Following Multiple Artificial Inseminations during Spontaneous Oestrus [J]. Acta Veterinaria Scandinavica, 46
- [8] PRESENT STATUS OF REPEAT-BREEDER COW PROBLEM [J]. JOURNAL OF DAIRY SCIENCE, 1961, 44 (12) : 2323 - &
- [9] Reproductive tract differences in repeat-breeder cows [J]. JOURNAL OF DAIRY SCIENCE, 2010, 93 : 220 - 220