Expression of genes involved in energy metabolism and transport of volatile fatty acids and urea in rumen epithelium of bulls identified for high, medium, and low residual Feed intake

An abstract of the study investigating the expression of genes involved in energy metabolism and volatile fatty acids (VFA) and urea transport in rumen epithelium of bulls with high (H-RFI), medium (M-RFI), and low (L-RFI) residual feed intake, is discussed. Twenty-seven Nellore bulls were identifie...

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Bibliographic Details
Published in:Journal of animal science 2017-08, Vol.95, p.286
Main Authors: Benedeti, P Del Bianco, Lopes, M M, Bonilha, S F M, Serão, N V L, Lopes, D R, Mantovani, H C, Gionbelli, M P, Newbold, C J, Detmann, E, Duarte, M S
Format: Article
Language:English
Subjects:
Animals
Energy expenditure
Energy metabolism
Epithelium
Fatty acids
Gene expression
Genes
Metabolism
Pens
Rumen
Urea
Volatile fatty acids
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Summary:An abstract of the study investigating the expression of genes involved in energy metabolism and volatile fatty acids (VFA) and urea transport in rumen epithelium of bulls with high (H-RFI), medium (M-RFI), and low (L-RFI) residual feed intake, is discussed. Twenty-seven Nellore bulls were identified for L-RFI, M-RFI , and H-RFI and finished in collective pens and animals were fed the same diet, formulated to meet the requirements of 1.3 kg daily gain with a target finish weight of 550 kg. The results of the study indicate that L-RFI animals have lower energy expenditure in this tissue, which likely contribute for their better efficiency compared to the M-RFI and H-RFI bulls.
ISSN:0021-8812
1525-3163