共 16 条
[2]
BLOM E, 1950, FERTIL STERIL, V1, P176
[5]
DAVIS H. P., 1939, Proc. Amer. Soc. Anim. Prod., 32nd Ann. Meet., P232
[6]
ELLIOTT FI, 1956, J DAIRY SCI, V39, P921
[7]
ELLIOTT FI, UNPUBLISHED
[8]
EMMENS C. W., 1950, AUSTRALIAN VET JOUR, V26, P226, DOI 10.1111/j.1751-0813.1950.tb04947.x
[9]
HAQ I., 1949, VET REC, V61, P145
[10]
HERMAN HA, 1941, MISSOURI AGR EXPT ST, V326