共 9 条
[1]
BEESON WM, 1959, AS252 PURD U MEM
[2]
HEANEY DP, 1963, J ANIM SCI, V22, P725
[3]
HENDRIX K, 1973, UREA SUPPLEMENTATION, P10
[4]
LANARI D, 1971, J DAIRY SCI, V54, P772
[7]
RUMERY MGA, 1969, J DAIRY SCI, V52, P908
[8]
Scales FM, 1920, J IND ENG CHEM-US, V12, P350, DOI 10.1021/ie50124a013
[9]
STEEL R. G. D., 1960, PRINCIPLES PROCEDURE