Genetic Parameters among Production, Carcass Composition and Carcass Quality Traits of Beef Cattle
نویسندگان
چکیده
منابع مشابه
The Genetic Improvement of Carcass Composition in Beef Cattle
Although carcass trait selection programs have primarily focused on carcass marbling (quality grade), recent changes in the North American beef industry will very likely increase the economic importance of carcass composition (yield grade). Ultrasound technology is a valuable tool in these efforts. This review summarizes recent research pertaining to the role of ultrasound in improving carcass ...
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and Implications Variance parameters including heritabilities, genetic and residual correlations are required for national cattle evaluation. There are huge amounts of data available for estimating such variance parameters for growth traits, but much less data is available for carcass traits. In this study, heritabilities and genetic correlations were estimated using restricted maximum likeliho...
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Carcass measurements were taken on 1,292 steers and collected by the American Shorthorn Association. The sires were purebred or appendix-registered Shorthorn. Because all dams were not Shorthorn, genetic fractions of breeds of origin were determined for each dam. Measurements for hot carcass weight; dressing percentage; fat thickness; ribeye area; kidney, pelvic, and heart fat (KPH); marbling; ...
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ژورنال
عنوان ژورنال: Journal of Animal Science
سال: 1973
ISSN: 0021-8812,1525-3163
DOI: 10.2527/jas1973.365832x