Growth and Development Symposium: Impacts of inflammation on cattle growth and carcass merit

Journal of Animal Science
C A GiffordC R Krehbiel

Abstract

Inflammation caused by bovine respiratory disease (BRD) continues to be one of the greatest challenges facing beef cattle producers and feedlot managers. Inflammation decreases DMI, ADG, and G:F in feedlot calves, decreasing growth rate and increasing days on feed, which results in economic losses during the feeding period. During the past decade, marketing of feedlot animals has changed from selling cattle on a live basis to a grid-based marketing system. When cattle are marketed on a live basis, the economic effects of BRD stop at increased health cost and decreased feedlot performance, carcass weight, and death loss. However, when cattle are marketed in a grid-based system, inflammation has the potential to also affect carcass cutability and quality. The effects of inflammation on feedlot cattle in regards to performance are well understood; however, specific effects on cattle growth and ultimately carcass merit are not as well described. Recent studies in feedlot cattle have indicated that the incidence of BRD decreases both HCW and marbling; however, mechanisms are not understood. Research in other species has demonstrated that during the acute phase response, pro-inflammatory cytokines promote skeletal muscle catabolism t...Continue Reading

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Citations

Jul 16, 2015·Critical Reviews in Food Science and Nutrition·Marija KnezJames C R Stangoulis
Jun 11, 2017·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Paulo G M A MartinsJohn D Arthington
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Aug 20, 2019·American Journal of Reproductive Immunology : AJRI·Stacia Z McIntoshRyan L Ashley

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