共 15 条
[3]
DICKINSON A. G., 1960, JOUR AGRIC SCI, V54, P378, DOI 10.1017/S0021859600021328
[6]
FRANKE JE, 1965, J ANIMAL SCI, V24, P281
[8]
GREGORY KE, 1950, J ANIMAL SCI, V9, P339
[9]
JOUBERT D. M., 1958, JOUR AGRIC SCI, V51, P325, DOI 10.1017/S0021859600035140
[10]
Knapp B, 1940, J AGRIC RES, V61, P0277