Some consequences of selection for residual feed intake in beef cattle
Date
2009
Authors
Lines, D.
Wolcott, M.
Pitchford, W.
Bottema, C.
Herd, R.
Oddy, H.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Proceedings of the eighteenth conference : Matching genetics and environment : a new look at an old topic, Barossa Valley, S. A., 28th September - 1st October 2009 / Association for the Advancement of Animal Breeding and Genetics: pp.604-607
Statement of Responsibility
D. S. Lines, M. L. Wolcott, W. S. Pitchford, C. D. K. Bottema, R. M. Herd and V. H. Oddy
Conference Name
Association for the Advancement of Animal Breeding and Genetics Conference (18th : 2009 : Barossa Valley, South Australia)
Abstract
Body composition and energy expenditure were investigated in Angus heifers divergently selected for residual feed intake. Differences in fat deposition at rib and rump sites were observed between the lines but there was no difference in protein deposition, weight gain or energy expenditure. Most of the variation in energy expenditure could be accounted for by the metabolisable energy consumed by the animal. The implications of this observation on the biological consequences of selection for residual feed intake are discussed. These are preliminary observations and further work on the biological basis of the trait is required to provide definitive answers.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
© Association for the Advancement of Animal Breeding and Genetics, 2009