共 16 条
[4]
ANALYSIS OF FACTORS INFLUENCING REPRODUCTIVE-PERFORMANCE OF THE DAIRY-COW BY PROGESTERONE ASSAY IN MILK-FAT
[J].
BRITISH VETERINARY JOURNAL,
1983, 139 (01)
:29-37
[7]
Dixon W. I, 1983, BMDP BIOMEDICAL COMP
[8]
ESSLEMONT RJ, 1974, ADAS Q REV, V13, P19
[9]
ESTRUS DETECTION AND ESTRUS DETECTION AIDS
[J].
JOURNAL OF DAIRY SCIENCE,
1975, 58 (02)
:248-256