共 7 条
[4]
Lorenz F. W., 1944, POULTRY SCI, V23, P193, DOI 10.3382/ps.0230193
[5]
SEVOIAN M., 1957, Avian Diseases, V1, P136, DOI 10.2307/1587727
[6]
SWANSON MH, 1971, 14 WORLDS POULTR C S, V2, P87
[7]
VANROEKEL H, 1951, AM J VET RES, V12, P140