共 20 条
[1]
ANTHONY WB, 1959, J ANIM SCI, V18, P1541
[2]
BRINKS JS, 1961, J ANIM SCI, V20, P363
[5]
COLE L. J., 1933, Journal of Dairy Science, V16, P565, DOI 10.3168/jds.S0022-0302(33)93375-5
[6]
COOK A. C., 1942, Journal of Animal Science, V1, P345
[10]
GIFFORD W, 1953, 531 ARK AGR EXP STA