共 42 条
[1]
BECK TW, 1983, BIOL REPROD S1, V28, P273
[4]
BOICE ML, 1979, THESIS U ILLINOIS UR
[6]
BROWN H, 1973, J AM VET MED ASSOC, V162, P456
[7]
BULMAN DC, 1978, J REPROD FERTIL, V54, P447, DOI 10.1530/jrf.0.0540447
[8]
Call EP., 1978, LARGE DAIRY HERD MAN, P190