共 13 条
[1]
BARROW PA, 1990, VET REC, V126, P241
[4]
COOPER GL, 1992, VACCINE, V10, P247, DOI 10.1016/0264-410X(92)90160-L
[6]
GUPTA BR, 1976, INDIAN J ANIM SCI, V46, P546
[7]
GUPTA BR, 1976, INDIAN J ANIM SCI, V46, P502
[9]
Pomeroy B. S., 1984, DISEASES POULTRY, P79