the calves’ midwinter (period 4) 25OHD concentrations fell to 15.2 1.6 and 16.7 1.5 ng/mL for 2011 and 2012, respectively, after 4 to 5 mo on a finishing diet (P < 0.0001)
the calves’midwinter (period 4) 25OHD concentrations fell to 15.2 1.6 and 16.7 1.5 ng/mL for2011 and 2012, respectively, after 4 to 5 mo on a finishing diet (P < 0.0001)