共 18 条
[1]
COMPARATIVE PERFORMANCE OF F1 FRIESIAN X ZEBU HEIFERS IN ETHIOPIA
[J].
ANIMAL PRODUCTION,
1983, 37 (OCT)
:247-252
[2]
ANDERSON J., 1936, EMPIRE JOUR EXP AGRIC, V4, P186
[4]
BAKER A A, 1967, Australian Veterinary Journal, V43, P140, DOI 10.1111/j.1751-0813.1967.tb08921.x
[5]
BRANNANG E, 1980, WLD ANIM REV, V34, P34
[6]
ESTRUS DETECTION AND ESTRUS DETECTION AIDS
[J].
JOURNAL OF DAIRY SCIENCE,
1975, 58 (02)
:248-256
[7]
GALINA CS, 1982, THERIOGENOLOGY, V17, P483
[8]
BEHAVIORAL AND OVARIAN CHANGES DURING THE ESTROUS-CYCLE IN THE BORAN (BOS-INDICUS)
[J].
BRITISH VETERINARY JOURNAL,
1987, 143 (01)
:75-82