共 14 条
[4]
CARTER HW, 1956, J DAIRY SCI, V39, P931
[6]
HEIDHUES T., 1961, ZEIT TIERZUCHT U ZUECHTUNGSBIOLOGIE, V75, P323
[7]
Lush Jay L., 1944, JOUR DAIRY SCI, V27, P937, DOI 10.3168/jds.S0022-0302(44)92668-8
[9]
MORILLO FJ, 1966, THESIS NORTH CAROLIN
[10]
SENDELBACH AG, 1957, J DAIRY SCI, V40, P620