共 8 条
[1]
ARCHIBALD J. G., 1938, JOUR DAIRY SCI, V21, P59, DOI 10.3168/jds.S0022-0302(38)95615-2
[4]
COUP M. R., 1964, NEW ZEAL J AGR RES, V7, P624
[6]
HUBBERT F, 1960, 1243 OR AGR EXP STA
[7]
JACOBSON WC, 1948, J DAIRY SCI, V31, P676