共 26 条
[2]
BULMAN DC, 1978, J REPROD FERTIL, V54, P447, DOI 10.1530/jrf.0.0540447
[6]
Edwards M J, 1965, N Z Vet J, V13, P25, DOI 10.1080/00480169.1965.33588
[7]
CONCENTRATIONS OF ESTRADIOL-17-BETA ESTRONE AND PROGESTERONE IN JUGULAR VENOUS PLASMA OF COWS DURING ESTROUS-CYCLE AND IN EARLY PREGNANCY
[J].
ACTA ENDOCRINOLOGICA,
1973, 73 (02)
:374-384
[8]
PREGNANCY DIAGNOSIS IN COW FROM MILK PROGESTERONE CONCENTRATION
[J].
BRITISH VETERINARY JOURNAL,
1976, 132 (05)
:445-464
[10]
HENRICKS DM, 1974, J REPROD FERTIL, V41, P113, DOI 10.1530/jrf.0.0410113