共 12 条
- [1] Barragry T. B., 1975, Irish Veterinary Journal, V29, P71
- [2] BOSC M J, 1975, Theriogenology, V3, P187, DOI 10.1016/0093-691X(75)90003-5
- [3] INDUCTION OF PARTURITION IN COWS USING BETAMETHASONE [J]. VETERINARY RECORD, 1982, 110 (12) : 268 - 271
- [5] FACTORS AFFECTING GESTATION LENGTH IN DAIRY-CATTLE [J]. THERIOGENOLOGY, 1981, 15 (06) : 553 - 559
- [7] KANCHEV LN, 1976, J REPROD FERTIL, V48, P341, DOI 10.1530/jrf.0.0480341
- [8] LASTER DB, 1973, J ANIM SCI, V36, P695
- [9] PATTERSON DS, 1967, VET REC, V80, P260
- [10] PLENDERLEITH RWJ, 1974, VET REC, V95, P161