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Abstract

The objective of this research was to evaluate circulating concentrations of plasma cortisol and measures of temperament at weaning in calves (steers and heifers) and at transport in steers. Calves (n=993) were produced from a 3-breed diallel mating design that included calves from 3 consecutive...

Author(s)
Chase, C. C., Jr.; Randel, R. D.; Riley, D. G.; Coleman, S. W.; Phillips, W. A.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2017, 95, 12, pp 5253-5262
Abstract

In an effort to determine whether tropical adaptation influences circulating concentrations of the growth-related hormone IGF-I, 3-breed diallel matings were conducted using temperate Bos taurus (Angus), tropical Bos indicus (Brahman), and tropical Bos taurus (Romosinuano). Purebred Angus, Braham,...

Author(s)
Caldwell, L. C.; Chase, C. C., Jr.; Riley, D. G.; Coleman, S. W.; Phillips, W. A.; Spicer, L. J.; Welsh, T. H., Jr.; Randel, R. D.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2011, 89, 12, pp 4017-4022
Abstract

The objectives of this work were to estimate heterosis and breed genetic effects for carcass quantity, quality, and palatability traits of steers (Bos spp.) produced from matings of Romosinuano, Brahman, and Angus cattle. Steers (n=464) were weaned at 7 mo of age and transported to the Southern...

Author(s)
Riley, D. G.; Chase, C. C., Jr.; Coleman, S. W.; Phillips, W. A.; Miller, M. F.; Brooks, J. C.; Johnson, D. D.; Olson, T. A.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2012, 90, 7, pp 2159-2166
Abstract

To improve the overall value of calves from the southern U.S. beef cow herds, tropically adapted Bos indicus and Bos taurus breeds are being evaluated. The objectives of these studies were to determine the impact of tropically adapted breed type on dry matter intake (DMI) and digestibility of low-...

Author(s)
Phillips, W. A.; Coleman, S. W.; Holloway, J. W.; Riley, D. G.; Chase, C. C.; Warrington, B.
Publisher
Science Hub, LLC, Milford, USA
Citation
Agriculture and Biology Journal of North America, 2010, 1, 6, pp 1278-1286
Abstract

Our primary objective of this experiment was to evaluate potential genetic differences between two diverse Bos taurus breeds [Angus (AG) and Romosinuano (RO)] in response to an endotoxin challenge. Eighteen steers (n=9 steers/breed; 299.4±5.2 kg BW) were acclimated to environmentally controlled...

Author(s)
Carroll, J. A.; Burdick, N. C.; Reuter, R. R.; Chase, C. C., Jr.; Spiers, D. E.; Arthington, J. D.; Coleman, S. W.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Domestic Animal Endocrinology, 2011, 41, 4, pp 163-173
Abstract

A study was performed to evaluate differences in thermoregulatory ability of 2 Bos taurus breeds with known differences in heat tolerance. Nine Angus (AG; 304±7 kg of BW) and 9 Romosinuano (RO; 285±7.5 kg of BW) steers were transported to the Brody Environmental Center at the University of...

Author(s)
Scharf, B.; Carroll, J. A.; Riley, D. G.; Chase, C. C., Jr.; Coleman, S. W.; Keisler, D. H.; Weaber, R. L.; Spiers, D. E.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2010, 88, 7, pp 2321-2336
Abstract

The objective herein was to estimate heterosis and breed effects in purebred and crossbred Romosinuano, Brahman, and Angus calves on acute phase protein response to weaning and transportation. Calves (n=1,032) were weaned in September of 2002, 2003, and 2004 at approximately 7 mo of age....

Author(s)
Qiu, X.; Arthington, J. D.; Riley, D. G.; Chase, C. C., Jr.; Phillips, W. A.; Coleman, S. W.; Olson, T. A.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2007, 85, 10, pp 2367-2374

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