Search Results - "Duff, G. C."

BOARD-INVITED REVIEW: Recent advances in management of highly stressed, newly received feedlot cattle by Duff, G.C, Galyean, M.L

“…Morbidity and mortality from bovine respiratory disease (BRD) and associated losses in performance and carcass merit continue to plague the beef cattle…”
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Effects of zilpaterol hydrochloride on growth rates, feed conversion, and carcass traits in calf-fed Holstein steers by Beckett, J. L, Delmore, R. J, Duff, G. C, Yates, D. A, Allen, D. M, Lawrence, T. E, Elam, N

“…Two experiments were conducted to evaluate the effectiveness of zilpaterol hydrochloride (ZH) to enhance growth performance and carcass characteristics in…”
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Effects of crude protein concentration and degradability on performance, carcass characteristics, and serum urea nitrogen concentrations in finishing beef steers by Gleghorn, J.F, Elam, N.A, Galyean, M.L, Duff, G.C, Cole, N.A, Rivera, J.D

“…Two experiments were conducted at two locations to determine the effects of dietary CP concentration and source on performance, carcass characteristics, and…”
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Interaction of cattle health/immunity and nutrition by Galyean, M. L, Perino, L. J, Duff, G. C

“…The usual means of assessing the health of newly received beef cattle susceptible to bovine respiratory disease (BRD) are subjective, typically involving…”
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Effects of phase-feeding of crude protein on performance, carcass characteristics, serum urea nitrogen concentrations, and manure nitrogen of finishing beef steers by Cole, N.A, Defoor, P.J, Galyean, M.L, Duff, G.C, Gleghorn, J.F

“…As cattle mature, the dietary protein requirement, as a percentage of the diet, decreases. Thus, decreasing the dietary CP concentration during the latter part…”
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Alteration of digestive tract microbiome in neonatal Holstein bull calves by bacitracin methylene disalicylate treatment and scours1 by Xie, G., Duff, G. C., Hall, L. W., Allen, J. D., Burrows, C. D., Bernal-Rigoli, J. C., Dowd, S. E., Guerriero, V., Yeoman, C. J.

“…The effects of bacitracin methylene disalicylate (BMD) and scours on the fecal microbiome, animal performance, and health were studied in Holstein bull calves…”
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Effects of supplementing milk replacer with essential amino acids on blood metabolites, immune response, and nitrogen metabolism of Holstein calves exposed to an endotoxin by Zubia, K.M., Akter, A., Carter, B.H., McDaniel, M.R., Duff, G.C., Löest, C.A.

“…This study evaluated the effects of supplementing calf milk replacer with essential AA on immune responses, blood metabolites, and nitrogen metabolism of 32…”
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Effects of supplemental zinc concentration and source on performance, carcass characteristics, and serum values in finishing beef steers by Malcolm-Callis, K. J, Duff, G. C, Gunter, S. A, Kegley, E. B, Vermeire, D. A

“…Three studies were conducted to examine the effects of zinc concentration or source in diets of finishing beef steers. In Exp. 1, 108 (British x Continental)…”
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Influence of grazing dormant native range or winter wheat pasture on subsequent finishing cattle performance, carcass characteristics, and ruminal metabolism by Choat, W.T, Krehbiel, C.R, Duff, G.C, Kirksey, R.E, Lauriault, L.M, Rivera, J.D, Capitan, B.M, Walker, D.A, Donart, G.B, Goad, C.L

“…A winter grazing/feedlot performance experiment repeated over 2 yr (Exp. 1) and a metabolism experiment (Exp. 2) were conducted to evaluate effects of grazing…”
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Effects of supplemental vitamin E on performance, health, and humoral immune response of beef cattle by Rivera, J. D, Duff, G. C, Galyean, M. L, Walker, D. A, Nunnery, G. A

“…Three experiments were conducted to examine the effect of dietary vitamin E on receiving performance and health and on finishing performance of beef cattle…”
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Metabolic adaptations to heat stress in growing cattle by O’Brien, M.D., Rhoads, R.P., Sanders, S.R., Duff, G.C., Baumgard, L.H.

“…To differentiate between the effects of heat stress (HS) and decreased dry matter intake (DMI) on physiological and metabolic variables in growing beef cattle,…”
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Performance, health, and physiological responses of newly received feedlot cattle supplemented with pre- and probiotic ingredients by Colombo, E.A., Cooke, R.F., Brandão, A.P., Wiegand, J.B., Schubach, K.M., Sowers, C.A., Duff, G.C., Block, E., Gouvêa, V.N.

“…Nutritional strategies that optimize immunity of feedlot cattle are warranted due to increasing regulations with the use of feed-grade antimicrobials. This…”
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Effect of two dietary concentrate levels on tenderness, calpain and calpastatin activities, and carcass merit in Waguli and Brahman steers by Ibrahim, R.M, Goll, D.E, Marchello, J.A, Duff, G.C, Thompson, V.F, Mares, S.W, Ahmad, H.A

“…The objective of this study was to compare carcass characteristics of a newly introduced breed, the Waguli (Wagyu x Tuli), with the carcass characteristics of…”
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Influence of feed intake fluctuation and frequency of feeding on nutrient digestion, digesta kinetics, and ruminal fermentation profiles in limit-fed steers by Soto-Navarro, S. A, Krehbiel, C. R, Duff, G. C, Galyean, M. L, Brown, M. S, Steiner, R. L

“…Nine crossbred beef steers (344 +/- 26 kg) fitted with ruminal cannulas were used in a randomized complete block design to evaluate the effects of feeding…”
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Effects of restricted versus conventional dietary adaptation on feedlot performance, carcass characteristics, site and extent of digestion, digesta kinetics, and ruminal metabolism by Choat, W. T, Krehbiel, C. R, Brown, M. S, Duff, G. C, Walker, D. A, Gill, D. R

“…Three experiments were conducted to determine effects of restricting intake of the final finishing diet as a means of dietary adaptation compared with diets…”
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Alteration of digestive tract microbiome in neonatal Holstein bull calves by bacitracin methylene disalicylate treatment and scours by Xie, G, Duff, G C, Hall, L W, Allen, J D, Burrows, C D, Bernal-Rigoli, J C, Dowd, S E, Guerriero, V, Yeoman, C J

“…The effects of bacitracin methylene disalicylate (BMD) and scours on the fecal microbiome, animal performance, and health were studied in Holstein bull calves…”
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Effects of preshipping vs. arrival medication with tilmicosin phosphate and feeding chlortetracycline on health and performance of newly received beef cattle by Duff, G. C, Walker, D. A, Malcolm-Callis, K. J, Wiseman, M. W, Hallford, D. M

“…Our objective was to determine the effects of preshipping (PRE) vs. arrival (ARR) medication with tilmicosin phosphate (MIC; Exp. 1 and 2) and feeding…”
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Effects of housing and feeding systems on performance of neonatal Holstein bull calves by Bernal-Rigoli, J C, Allen, J D, Marchello, J A, Cuneo, S P, Garcia, S R, Xie, G, Hall, L W, Burrows, C D, Duff, G C

“…As the dairy industry continues to grow, more dairy calves are available for dairy, beef, and veal purposes. Rearing systems must be highly efficient to make…”
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Fleur-de-Lys abdominoplasty—a consecutive case series by Duff, C.G, Aslam, S, Griffiths, R.W

“…Sixty-eight consecutive patients who had undergone Fleur-de-Lys abdominoplasty are described. The mean age was 39 years, (22–62 years) and the mean body mass…”
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Effects of dietary level of ruminally protected choline on performance and carcass characteristics of finishing beef steers and on growth and serum metabolites in lambs by Bryant, T.C, Rivera, J.D, Galyean, M.L, Duff, G.C, Hallford, D.M, Montgomery, T.H

“…Ruminally protected choline (RPC) was evaluated in two experiments. In Exp. 1, beef steers (n = 160; average initial BW = 350.9 kg) were fed a 90% concentrate…”
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