共 14 条
- [3] GWATKIN RBL, 1967, J REPROD FERTIL, V13, P577
- [4] GWATKIN RBL, 1966, FERTILITY STERILITY, V17, P114
- [5] HANCOCK JL, 1962, J REPROD FERTIL, V4, P195, DOI 10.1530/jrf.0.0040195
- [7] JAENISCH R, 1977, CONCEPTS MAMMALIAN E, P267
- [8] Joo H. S., 1976, Veterinary Bulletin, V46, P653
- [9] MENGELING WL, 1976, AM J VET RES, V37, P1393
- [10] MENGELING WL, 1978, 5TH P INT C PIG VET, pKA15