共 41 条
[1]
BASRUR PK, 1983, 2ND P S ADV TOP AN R, P1
[2]
BELL BR, 1983, J DAIRY SCI S1, V66, P126
[3]
Betteridge K. J., 1981, New technologies in animal breeding, P109
[5]
BOWEN RA, 1978, J AM VET MED ASSOC, V172, P1303
[6]
BOWEN RA, 1983, AM J VET RES, V44, P1629