Effect of supplementation of two sources and two levels of copper on lipid metabolism in Nellore beef cattle
- 作者：Lisia Bertonha Correa ; lisiabc@yahoo.com.br ; [Author Vitae] ; Marcus Antonio Zanetti ; Gustavo Ribeiro Del Claro ; Mariza Pires de Melo ; Alessandra Fernandes Rosa ; Arlindo Saran Netto
- 关键词：Fatty acids ; Beef cattle ; Cholesterol ; Lipids ; Minerals
- 刊名：Meat Science
- 出版年：2012
- 期刊代码：78_03091740
- 类别：abs
- 出版时间：August, 2012
- 卷：91
- 期：4
- 页码：466-471
- 文件大小：186 K
摘要
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, I10 or I40: 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.