Regulation of growth and development of skeletal muscle and adipocytes and its impact on efficiency and meat quality

In: Energy and protein metabolism and nutrition
Authors:
P.L. Greenwood NSW Department of Primary Industries, Armidale Livestock Industries Centre, University of New England, Armidale, NSW 2351, Australia.

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B.J. Walmsley NSW Department of Primary Industries, Armidale Livestock Industries Centre, University of New England, Armidale, NSW 2351, Australia.
Animal Genetics and Breeding Unit, University of New England, Armidale, NSW 2351, Australia.

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V.H. Oddy NSW Department of Primary Industries, Armidale Livestock Industries Centre, University of New England, Armidale, NSW 2351, Australia.

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This paper reviews regulation of skeletal muscle and adipocyte development by nutrition and genetics, and impacts on efficiency and carcass and meat quality. Consequences of varying nutrition from conception through finishing for these tissues and for efficiency and meat quality traits are reviewed, as are genetic parameters for body composition, meat quality and other production traits. Examples of the consequences of genetic selection for muscling, marbling and residual feed intake are also briefly described.

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