SHORT COMMUNICATION
Nutritional impact on muscle glycogen metabolism
in lambs selected for muscling
1
Australian Sheep Industry Cooperative Research Centre,
School of Rural Sciences and Natural Resources, University of New England,
Armidale, NSW Australia 2351
2
Australian Sheep Industry Cooperative Research Centre, New South Wales Agriculture, Centre for Sheep Meat Development,
Cowra, NSW Australia 2794
Publication date: 2004-08-30
Corresponding author
K. M. Martin
Australian Sheep Industry Cooperative Research Centre, School of Rural Sciences and Natural Resources, University of New England, Armidale, NSW Australia 2351
Australian Sheep Industry Cooperative Research Centre, School of Rural Sciences and Natural Resources, University of New England, Armidale, NSW Australia 2351
J. Anim. Feed Sci. 2004;13(Suppl. 1):639-642
KEYWORDS
ABSTRACT
Lambs from sires selected for high or low Estimated Breeding Values (EBVs) for yearling eye
muscle development, were maintained on high or low energy rations. During the feeding period,
they were exposed to a one-off bout of exercise designed to deplete muscle glycogen. The progeny
of high muscling EBV sires had increased pre-exercise muscle glycogen concentration and post
exercise rates of glycogen repletion; however this was only evidenced when Metabolizable Energy
(ME) intakes were adequate. Generally ME intake increased rate of muscle glycogen repletion.
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