共 20 条
[12]
HANSON RP, 1964, CONTROL NEWCASTLE DI, P85
[13]
HITCHNER SB, 1964, CONTROL NEWCASTLE DI, P85
[14]
LORENZ FW, 1948, POULTRY SCI, V27, P201
[16]
VANROEKEL H, 1952, P BOOK AVMA, P271
[17]
WICHMANN RW, 1963, PERSONAL COMMUNICATI
[18]
YATES VJ, 1957, AM J VET RES, V18, P657
[19]
ZARGAR SL, 1950, J AM VET MED ASSOC, V116, P304
[20]
1962, NATL ACAD SCI NATL R, P48