J. Anim Sci.
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J. Anim Sci. 1970. 31:1081-1088.
© 1970 American Society of Animal Science
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Estimation of Lamb Carcass Composition by Use of Specific Gravity Measurements1

Nelson J. Adams2, Z. L. Carpenter and C. W. Spaeth3

Texas A & M University,4, College Station

Abstract

SPECIFIC gravity, as a method for determination of carcass composition, has received considerable attention by many investigators as indicated by the review of Garrett (1968). Research questioning the reliability of specific gravity as an accurate measure of carcass composition has been reported by Kirton and Barton (1958), Ament, Galgan and Rupnow (1962), Field, Kemp and Varney (1963) and Timon and Bichard (1965b). Conversely, the predictive value of specific gravity has been found more reliable by other workers. Spurlock and Bradford (1965) reported that specific gravity was very accurate for estimating the percent fat content of carcasses that varied considerably in fatness. Khandekar, McManus and Goldstone (1965) reported significant correlations between specific gravity of the half-carcass and percent fat of the carcass. Meyer, Lofgreen and Garrett (1960), Garrett, Meyer and Lofgreen (1959), Meyer (1962) and Garrett and Hinman (1969) have used specific gravity measurements extensively for the calculation of carcass composition, empty body weights and utilizable energy determinations. Munson (1966) suggested that specific gravity data should be combined with other carcass measurements to provide reliable estimates of carcass composition.

Footnotes

1 T. A. 8345, Texas Agricultural Experiment Station.

2 California Agricultural Extension Service, Santa Rosa.

3 Kansas State University, Manhattan.

4 Department of Animal Science, Texas Agricultural Experiment Station.






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