Body condition important at calving
Farm and Ranch Guide
The last 60 days before calving and the first 60 days after calving are critical periods in the production cycle of the beef cow herd. Energy and protein requirements of the cow increase by 15 percent to 20 percent from mid to late gestation to support fetal growth and prepare the cow for lactation. Requirements increase again by 20 percent to 30 percent during peak lactation (about eight weeks post-calving).