A time effect (P < 0.01) was observed, with both groups experiencing a decrease in DMI from d −21 to 0 and an increase from d 1 to 21 relative to calving; however, no CON versus RPN treatment differences (P > 0.10) were observed.
The intake depression around calving can lead to NEB and promote fat mobilization from adipose tissue (Doepelet al., 2002).