共 25 条
[2]
CHAMBERS D. T., 1959, Journal of Agricultural Science, V53, P417, DOI 10.1017/S0021859600020840
[6]
CONRAD HR, 1954, J DAIRY SCI, V37, P664
[7]
CONWAY EJ, 1947, MICRODIFFISION ANALY
[8]
Corbett J. L., 1953, British Journal of Animal Behaviour, V1, P67, DOI 10.1016/S0950-5601(53)80056-0
[9]
GODREY NW, 1961, J AGRIC SCI
[10]
HANCOCK J., 1953, Anim. Breed. Abstr., V21, P1