共 50 条
[1]
ANDREAE U, 1980, LANDBAUFORSCH VOELKE, V53, P67
[4]
BLAUVELT H, 1955, 1ST P C GROUP PROC I, P221
[7]
FACTORS AFFECTING THE TIME TO 1ST SUCKLING IN DAIRY CALVES
[J].
ANIMAL PRODUCTION,
1982, 34 (JUN)
:339-346
[8]
EKESBO I, 1968, P LACTAMIN S DYRENDA, P41
[9]
FINGER KH, 1969, DTSCH TIERAERZTL WOC, V76, P565
[10]
FISHER RA, 1970, STATISTICAL METHODS