共 12 条
[1]
[Anonymous], 1980, ANAL CROSS CLASSIFIE
[2]
GENETIC AND ENVIRONMENTAL-FACTORS AFFECTING INCIDENCE OF DIFFICULT CALVING AND PERINATAL CALF MORTALITY IN ISRAELI-FRIESIAN DAIRY HERDS
[J].
ANIMAL PRODUCTION,
1976, 22 (JUN)
:299-310
[3]
CADY RA, 1980, THESIS CORNELL U ITH
[4]
DIXON WJ, 1981, BMDP STATISTICAL SOF
[6]
MCDANIEL BT, 1981, J DAIRY SCI S1, V64, P81
[7]
PHILIPSSON J, 1976, Acta Agriculturae Scandinavica, V26, P230
[8]
PHILIPSSON J, 1976, Acta Agriculturae Scandinavica, V26, P221
[9]
PHILIPSSON J, 1976, Acta Agriculturae Scandinavica, V26, P165