variations in plasma concentrations of certain steroids were associated ( p less than .05 to p less than .01 ) with diet group ( e beta ) , calf sex ( te ) , prepartum day ( all hormones ) , month ( e beta , e alpha ) and linear covariates of cow weight ( e beta , e alpha ) calf birth weight ( e beta , e alpha , e 1 , te ) , temperature ( p4 , e beta ) and photoperiod ( p4 , e beta ) .
C0005910
weight
C0005612
birth weight