J. Anim Sci.
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J. Anim Sci. 1983. 56:592-597.
© 1983 American Society of Animal Science
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Palatability of Beef from Steer and Young Bull Carcasses as Influenced by Electrical Stimulation, Subcutaneous Fat Thickness and Marbling1

R. R. Riley2, J. W. Savell2, C. E. Murphey2, G. C. Smith2, D. M. Stiffler2 and H. R. Cross3

Texas Agricultural Experiment Station, Texas A&M University, College Station 77843

Abstract

Palatability of steaks from young bulls that had or had not been electrically stimulated (ES) and steers that had not been electrically stimulated (non-ES) were compared. Steaks from non-ES young bulls, as compared with steaks from matched (for marbling and skeletal maturity) steers, had lower (P<.05) tenderness and connective tissue ratings and higher (P<.05) shear force values. Steaks from U.S. Choice steers and from U.S. Good steers or bulls that had at least 7.6 mm fat thickness did not differ (P>.05) in 28 of 30 possible comparisons of palatability characteristics. Steaks from U.S. Standard bulls and steers and U.S. Good bulls and steers that had less than 7.6 mm fat thickness were less palatable than steaks from U.S. Choice steers or from U.S. Good bulls and steers that had at least 7.6 mm fat thickness. These data indicate that the USDA might well give further consideration to a revision of its beef grade standards that would permit "A" maturity carcasses with a "slight amount" of marbling and at least 7.6 mm fat thickness to grade U.S. Choice, irrespective of their sex class.

Footnotes

1 Technical Article 17381 from the Texas Agr. Exp. Sta. This study was partially supported by the King Ranch, Inc., Kingsville, TX; the LeFiell Co., Inc., San Francisco, CA, and the Oscar Schmidt Meat Research Development Fund. This study is a contribution to the Texas Agr. Exp. Sta. Expanded Res. Prog. in Lean Beef Prod.

2 Meats and Muscle Biol. Sec, Dept. of Anim. Sci.

3 Roman L. Hruska U.S. Meat Animal Research Center, P.O. Box 166, Clay Center, NE 68933.






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Copyright © 1983 by the American Society of Animal Science.