共 8 条
[1]
Burt A. W. A., 1956, Dairy Science Abstracts, V18, P883
[2]
CRICHTON J. A., 1960, Animal Prod., V2, P159
[3]
HANSSON A, 1956, ANIMAL PRODUCTION, P51
[5]
REID J. T., 1957, Proceedings 1957 Cornell Nutr. Conf. Feed Manuf., P65