共 14 条
- [2] GADSBY JE, 1978, THESIS U CAMBRIDGE
- [3] Heap R. B., 1978, Control of ovulation., P295
- [4] PREGNANCY DIAGNOSIS IN COW FROM MILK PROGESTERONE CONCENTRATION [J]. BRITISH VETERINARY JOURNAL, 1976, 132 (05): : 445 - 464
- [5] HEAP RB, 1976, J ROY AGR SOC ENGL, V137, P67
- [7] KLOPPER A, 1969, FOETUS PLACENTA, P471
- [8] PREGNANCY-SPECIFIC PROTEIN IN BOVINE UTERUS [J]. BIOLOGY OF REPRODUCTION, 1977, 16 (05) : 682 - 690
- [10] MONVAL-GERONDEAU M M, 1970, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences Serie D Sciences Naturelles, V271, P2381