Carcass and meat quality characteristics of Brahman cross bulls and steers finished on tropical pastures in Costa Rica |
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Authors: | Julio Rodriguez John Unruh Milton Villarreal Olger Murillo Sailim Rojas Jorge Camacho John Jaeger Chris Reinhardt |
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Affiliation: | 1. Department of Animal Sciences and Industry, Kansas State University, Manhattan, KS 66506, USA;2. Instituto Tecnológico de Costa Rica, Cartago, Costa Rica;3. Kansas State University Agricultural Research Center, Hays, KS 67601, USA |
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Abstract: | Forty-eight male calves (3/4 Brahman × 1/4 Charolais) were used to determine carcass cutability and meat tenderness of Longissimus lumborum (LL), Gluteus medius (GM), Semitendinosus (ST) and Psoas major (PM) steaks from lighter weight carcasses of bulls and steers castrated at 3, 7, or 12 mo of age grown under tropical pasture conditions. Steaks from steers had lower (more tender) LL Warner–Bratzler shear force (WBSF) values than those from bulls. Steaks from steers castrated at 3 mo had lower GM WBSF than those from bulls. For PM steaks, those aged 28 d had lower WBSF than those aged 2 d. Steaks aged 28 d had the lowest LL and GM WBSF and steaks aged 2 d had the highest LL, GM, and ST WBSF. Castration at younger ages is recommended because it provides improvement in LL and GM tenderness over bulls with no differences in carcass traits or subprimal yields. |
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Keywords: | Aging Beef Bull Cutability Steer Tenderness |
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