共 58 条
[21]
MUHLBOCK O, 1960, BIOLOGICAL ACTIVITIE, P331
[22]
NALBANDOV AV, 1969, 1679 NAT AC SCIENC P, P165
[23]
OMARY CC, 1956, J ANIM SCI, V15, P48
[24]
PERRY TW, 1970, J ANIM SCI, V31, P739
[25]
PRESTON R, 1956, J ANIM SCI, V15, P3
[26]
SHARP GD, 1971, J ANIM SCI, V33, P675
[28]
STOB M, 1954, AM J VET RES, V55, P319
[29]
TIGER HL, 1956, S MEDICATED FEEDS WA, P183
[30]
TRENKLE AH, 1969, 1679 NAT AC SCIENC P, P150