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1980. The effects of increasing dietary roughage levels and slaughter weight on the feedlot performance and carcass characteristics of bulls and steers. Can. J. Anim. Sci. 60: 345-358. A serial slaughter experiment is described comparing 45 buils and 44 implanted steers. Nine of each "sex' ' were slaughtered at the start of the trial and the remaining 7 1 were fed diets containing three roughage levels (20%,50% and 807o alfalfa-brome hay) to two pen-average slaughter weights (a50 kg or 580 kg).doi:10.4141/cjas80-044 fatcat:3ywnomqfc5dhtivg4rhv3kgsoq