Effects of early-weaning and body condition score (BCS) at calving on reproductive performance of spring calving cows
Purvis, H.T.I.I.; Floyd, C.R.; Lusby, K.S.; Wettemann, R.P.
Animal Science Research Report Agricultural Experiment Station, Oklahoma State University ( P-943): 68-74
Pregnant cows were assigned to 3 treatments of 31 each: normally managed and fed to attain a body condition score (BCS) of 5.0 at calving (NOR); normally managed but the offspring were early-weaned at about 70 days after calving (NOREW); and nutritionally restricted to attain a BCS of 3.5 at calving and the calves were early weaned (LOWEW). NOR cows were given daily and singly 3 lb of a pelleted supplement containing 41% protein from November 9, 1993, to April 19, 1994.