共 20 条
[1]
DUNN TG, 1969, J ANIM SCI, V29, P719
[2]
HARWIN G. O., 1967, Proceedings of the South African Society of Animal Production, V6, P171
[3]
HOLNESS DH, 1977, RHOD J AGR RES, V15, P3
[4]
LAMOND D. R., 1970, Anim. Breed. Abstr., V38, P359
[5]
EFFECT OF PREGNANT MARE SERUM GONADOTROPHIN (PMS) ON OVARIAN FUNCTION OF BEEF HEIFERS, AS INFLUENCED BY PROGESTINS, PLANE OF NUTRITION, AND FASTING
[J].
AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH,
1970, 21 (01)
:153-&
[6]
Loukonen E. D., 1975, Dissertation Abstracts International, B, V36, P6
[7]
RAKHA AM, 1971, J ANIM SCI, V32, P507
[8]
ANALYSES OF SOME FACTORS WHICH AFFECT PRODUCTIVITY OF BEEF COWS AND OF THEIR CALVES IN A MARGINAL RAINFALL AREA OF RHODESIA .1. FACTORS AFFECTING CALVING RATE
[J].
ANIMAL PRODUCTION,
1975, 21 (AUG)
:41-49
[9]
ROSE CJ, 1964, 1ST P WLD C AN PROD, V3, P125
[10]
SMITH MF, 1976, J ANIM SCI, V42, P266