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Some Lumbar Lean Measures as Related to Swine Carcass Cut-Outs and Loin Eye Area¹

Michigan Agricultural Experiment Station, East Lansing

Abstract

Results of this study involving 292 swine carcasses indicate that depth of lumbar lean can be used as an indicator of loin eye area. However, the ratio of depth of lumbar lean plus fat to depth of lumbar lean was equally as reliable an indicator of loin eye area and had the added advantage of being a good indicator of carcass cut-outs. Although the various lumbar lean measurements can be used in carcass grading, their use appeared to have little advantage over the use of backfat alone.

¹ Journal Article 2407, Michigan Agricultural Experiment Station.

² The assistance and suggestions of W. T. Magee on statistical treatment and interpretation of the data is gratefully acknowledged. The authors also express thanks to Mrs. Mildred E. Spooner for conducting the statistical analyses and to R. H. Nelson for aid and suggestions on writing the manuscript.