SHORT COMMUNICATION
Bos indicus cattle can maintain feed intake and fat reserves in response to heat stress better than Bos taurus cattle
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1
School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, WA 6150, Australia
 
2
Department of Primary Industries, Werribee, VIC 3030, Australia
 
 
Publication date: 2004-08-30
 
 
Corresponding author
F. R. Dunshea   

Department of Primary Industries, Werribee, VIC 3030, Australia
 
 
J. Anim. Feed Sci. 2004;13(Suppl. 1):619-622
 
KEYWORDS
ABSTRACT
Bos indicus cattle are better adapted to tropical conditions than Bos taurus breeds and in part this may be related to differences in lipid and carbohydrate metabolism during heat stress. Bos indicus and Bos taurus cattle were subjected to heat stress and blood samples obtained to measure metabolism. Heat stress decreased feed intake and increased plasma non-esterified fatty acids (NEFA) in Bos taurus but not in Bos indicus cattle. Also, Bos indicus appear to be more insulin resistant than Bos taurus cattle and this may explain some of the differences between breeds.
 
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