共 16 条
[1]
Baker Marvel L., 1943, JOUR ANIMAL SCI, V2, P3
[4]
HETZER HO, 1940, USDA570 CIRC
[6]
Lush Jay L., 1942, JOUR DAIRY SCI, V25, P975, DOI 10.3168/jds.S0022-0302(42)95362-1
[7]
LUSH JL, 1940, AM SOC ANIM PROD P, P293
[8]
LUSH JL, 1942, USDA TECH B, V836
[9]
Nordskog Arne W., 1944, JOUR ANIMAL SCI, V3, P257