Effects of calcium magnesium carbonate and roughage level on feedlot performance, ruminal metabolism, and site and extent of digestion in steers fed high-grain diets
Crawford, G.I.; Keeler, C.D.; Wagner, J.J.; Krehbiel, C.R.; Erickson, G.E.; Crombie, M.B.; Nunnery, G.A.
Journal of Animal Science 86(11): 2998-3013
2008
ISSN/ISBN: 0021-8812
PMID: 18567736
DOI: 10.2527/jas.2007-0070
Accession: 031143046
A feedlot growth performance experiment and 2 metabolism experiments were conducted to evaluate dietary roughage concentration and calcium magnesium carbonate in steers fed a high-grain diet. In Exp. 1, one hundred ninety-two crossbred yearling steers (320+or-10 kg of initial BW) were fed diets based on steam-flaked corn with 0, 0.75, or 1.5% CaMg(CO3)2. There were no effects (P>=0.13) on ADG, DMI, G:F, or total water intake due to CaMg(CO3)2.