共 12 条
- [2] CLAWSON AJ, 1959, 59 NC AGR EXP STA 47
- [4] DEAN DT, 1962, J ANIM SCI, V21, P207
- [6] GRAY RC, 1961, J ANIM SCI, V20, P971
- [7] HOOKS R. D., 1963, JOUR ANIMAL SCI, V22, P1122
- [8] MADDOCK HM, 1953, ANTIBIOT CHEMOTHER, V3, P1075
- [9] MADDOCK HM, 1954, 2 AM CYAN COMP FIN C