共 13 条
[2]
Briggs HM, 1943, J AGRIC RES, V67, P0359
[7]
HARRIS L, 1942, J ANIM SCI, V2, P328
[9]
JOHNSON B. CONNOR, 1942, JOUR ANIMAL SCI, V1, P236
[10]
Mills R. C, 1944, JOUR DAIRY SCI, V27, P571, DOI 10.3168/jds.S0022-0302(44)92634-2