共 8 条
[2]
PREGNANCY DIAGNOSIS AND DETECTION OF FOETAL LIFE IN SHEEP AND PIGS BY AN ULTRASONIC METHOD
[J].
BRITISH VETERINARY JOURNAL,
1968, 124 (06)
:239-+
[4]
Keane M. G., 1969, Irish Veterinary Journal, V23, P194
[5]
LINDAHL IL, 1971, J ANIM SCI, V32, P922
[6]
LINDAHL IL, 1968, J ANIM SCI, V27, P1511
[7]
SHELTON M, 1968, PR2517 TEX ABR EXP S