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Effects of glycerin on receiving performance and health status of beef steers and nutrient digestibility and rumen fermentation characteristics of growing steers

Author:
E, Hales Kristin, J, Kraich K, G, Bondurant R, E, Meyer B, K, Luebbe M, S, Brown M, A, Cole N, C, MacDonald J
Source:
Journal of animal science 2013 v.91 no.9 pp. 4277
ISSN:
1525-3163
Subject:
animal health, beef, bovine respiratory disease, calves, corn, diet, digestibility, glycerol, health status, infectious bovine rhinotracheitis, mortality, rumen fermentation, starch, steers
Abstract:
One experiment was conducted to evaluate the influence of crude glycerin (GLY) on animal performance and health when used as a partial replacement for roughage in receiving diets. The second experiment was conducted using ruminally and duodenally cannulated steers in a 4 x 4 Latin square to determine the site of nutrient digestion, and ruminal fermentation characteristics when GLY replaced roughage at 0, 2.5, 5, and 10% of diet DM. In Exp. 1, calves (initial BW=245 kg) were fed treatment diets over a 42-d period that consisted of a control diet based on steam-flaked corn (SFC) with GLY inclusion in replacement of dietary roughage at 0, 5, and 10% of diet DM. A linear reduction in DMI was observed as GLY increased (P=0.01). Crude GLY incorporation tended to improve G:F in a linear manner (P=0.07); efficiency was improved 5.4 and 4.7% at 5 and 10% crude GLY. The number of animals receiving treatment for bovine respiratory disease (BRD) did not differ among treatments (P=0.67). Furthermore, there were no differences among treatments for mortality (P=0.58) or the frequency of calves that were seropositive for serum antibody titers to infectious bovine rhinotracheitis on d 28 (P>0.14). In Exp. 2, apparent OM and apparent and true starch digestibility increased linearly (P
Agid:
57487
Handle:
10113/57487