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  • Title: Effect of energy source and escape protein on receiving and finishing performance and health of calves.
    Author: McCoy RA, Stock RA, Klopfenstein TJ, Shain DH, Klemesrud MJ.
    Journal: J Anim Sci; 1998 May; 76(5):1488-98. PubMed ID: 9621958.
    Abstract:
    Two receiving and two finishing trials evaluated energy source and escape protein supplementation for calves. In receiving Trial 1, 398 calves (257 +/- 24 kg BW) were used in a 2 x 2 factorial arrangement of treatments. Energy sources were dry-rolled corn (DRC) and wet corn gluten feed (WCGF); each was fed without or with supplemental escape protein (EP). Calves fed WCGF gained slower (P < .05) and consumed less DM (P < .01) than calves fed DRC. Feed efficiency improved (P < .10) with EP supplementation. In finishing Trial 1, 240 calves (305 +/- 21 kg BW) were used. The arrangement of treatments was the same as in receiving Trial 1. Calves fed DRC/WCGF tended (P = .15) to be more efficient and consumed less DM (P < .05) than calves fed DRC. In receiving Trial 2, 315 calves (252 +/- 23 kg BW) were fed diets similar to those fed in receiving Trial 1. Calves fed WCGF consumed less DM (P < .01), gained similarly (P > .15), and were more efficient (P < .10) than calves fed DRC. In finishing Trial 2, 320 calves (298 +/- 23 kg BW) were fed diets containing DRC, DRC/WCGF, high-moisture corn (HMC), HMC/WCGF, and DRC/HMC; each was fed without or with supplemental EP. An energy source x protein supplement interaction was detected for gain (P < .05) and efficiency (P < .01). Results suggest that WCGF has a NEg greater than DRC in receiving diets and a NEg similar to that of DRC but lower than that of HMC in finishing diets.
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