Evaluation of attributes affecting tenderness differences between Bos taurus and Bos indicus cattle

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dc.contributor.author Whipple, G.
dc.contributor.author Koohmaraie, M.
dc.contributor.author Crouse, J.D.
dc.contributor.author Hunt, Melvin C.
dc.contributor.author Klemm, R.D.
dc.contributor.author Dikeman, Michael E.
dc.date.accessioned 2010-11-02T19:47:48Z
dc.date.available 2010-11-02T19:47:48Z
dc.date.issued 2010-11-02
dc.identifier.uri http://hdl.handle.net/2097/6429
dc.description.abstract Biological tenderness differences between longissimus muscles from 3/8 and 5/8 Sahiwal (Bos indicus) x Hereford-Angus and from Hereford-Angus (Bos taurus) were evaluated. No significant breed cross effects were observed for carcass traits or rates of pH and temperature decline. Loin steaks from Hereford x Angus had lower (P<.05) shear-force values and higher (P<.05) taste panel tenderness scores at 1 and 14 d postmortem. No breed effects existed for muscle fiber sarcomere length, muscle fiber type, muscle collagen, cathepsin enzyme activity, or calcium-dependent protease-I and -II activity. However, calcium-dependent protease inhibitor activity at 24 hr postmortem was greater (P<.01) in Sahiwal-crosses than for Hereford-Angus. Less protein degradation, which causes tenderization during aging, occurred in Sahiwal-crosses by d 14 than in Hereford-Angus at d 1 postmortem. Therefore, mechanisms involving calcium-dependent protease and its inhibitor may be the principal factors causing tenderness differences between Bos indicus and Bos taurus breeds. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Cattlemen’s Day, 1990 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 90-361-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 592 en_US
dc.subject Beef en_US
dc.subject Tenderness en_US
dc.subject Bos indicus en_US
dc.subject Calcium-dependent protease en_US
dc.subject Inhibitor en_US
dc.title Evaluation of attributes affecting tenderness differences between Bos taurus and Bos indicus cattle en_US
dc.type Conference paper en_US
dc.date.published 1990 en_US
dc.citation.epage 40 en_US
dc.citation.spage 38 en_US
dc.description.conference Cattlemen's Day, 1990, Kansas State University, Manhattan, KS, February, 1990 en_US
dc.contributor.authoreid mdikeman en_US


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