共 7 条
[1]
Currie JN, 1914, J AGRIC RES, V2, P1
[2]
DOX AW, 1910, USDA BUR ANIMAL IND, V120
[3]
FOUTS E. L., 1940, JOUR DAIRY SCI, V23, P245, DOI 10.3168/jds.S0022-0302(40)95518-7
[4]
Kirsh D, 1935, J BIOL CHEM, V108, P421
[5]
NAYLOR N. M., 1930, IOWA STATE COLL JOUR SCI, V4, P465
[7]
THIBODEAU R, 1942, MINN AGR EXPT STA TE, V152