共 21 条
[5]
BAUMGARDT BR, 1959, J ANIM SCI, V18, P1538
[6]
BLAXTER K. L., 1956, Journal of Agricultural Science, V47, P207, DOI 10.1017/S0021859600040132
[8]
CATE HA, 1955, J ANIMAL SCI, V15, P137
[9]
Crampton EW, 1938, J NUTR, V15, P383