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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effect of supplementation of two sources and two levels of copper on lipid metabolism in Nellore beef cattle

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Author(s):
Correa, Lisia Bertonha [1] ; Zanetti, Marcus Antonio [1] ; Del Claro, Gustavo Ribeiro [1] ; de Melo, Mariza Pires [1] ; Rosa, Alessandra Fernandes [1] ; Netto, Arlindo Saran [1]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Coll Anim Sci & Food Engn FZEA, BR-13635900 Pirassununga, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: MEAT SCIENCE; v. 91, n. 4, p. 466-471, AUG 2012.
Web of Science Citations: 6
Abstract

This study was conducted with 35 Nellore beef cattle to determine the effect of supplementation of two levels and two copper sources (organic and inorganic) on metabolism of lipids and cholesterol of meat. The five treatments used were: Control: without copper supplementation, 110 or 140: 10 or 40 mg/kg DM (as Cu sulfate), O10 or O40: 10 or 40 mg/kg DM (as Cu proteinate). In general, the copper supplementation changed the fatty acid profile of meat (p < 0.05), with a higher proportion of unsaturated fatty acids and reduction of saturated fatty acids. There was no effect of supplementation on blood cholesterol and triglycerides, however; in general, there was a reduction in cholesterol concentration in the L dorsi (p < 0.05) compared to the control treatment through the reduction (p < 0.05) in the concentrations of GSH and GSH/GSSG ratio. The Cu supplementation did have an influence on metabolism of lipids. The production of healthier meat is beneficial to public health by reducing the risk of cardiovascular disease. (C) 2012 Elsevier Ltd. All rights reserved. (AU)