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A Comparison of Urinary and Blood Serum Creatinine with Live Probe as Measures of Leanness for Live Swine¹

Michigan Agricultural Experiment Station^,3

Abstract

Blood serum creatinine and creatinine coefficients were determined for 35 barrows. The creatinine coefficients and blood creatinine values were correlated with live probe and other measurements of carcass leanness. The results indicate that creatinine may be used to predict the amount of lean in the live hog. The urinary creatinine coefficient was more highly correlated with other measures of leanness than blood creatinine, but in general was not as high as the live probe. Therefore, there would be no major advantage in using creatinine coefficient as a measure of leanness since the live probe was simpler to obtain and was more closely correlated with leanness.

¹ Journal Article 2187 Michigan Agricultural Experiment Station, East Lansing.

² Department of Animal Husbandry.

³ Acknowledgement is given to Dr. E. R. Miller, Mrs. Elaine Liuzzo and Dr. W. T. Magee for assistance with this study.