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

Autor(es)

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]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Coll Anim Sci & Food Engn FZEA, BR-13635900 Pirassununga, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MEAT SCIENCE; v. 91, n. 4, p. 466-471, AUG 2012.
• Citações Web of Science: 6

Resumo

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)

• Processo FAPESP: 06/50898-0 - Efeitos da suplementação de diferentes fontes e níveis de cobre no desempenho, status de Cu, metabolismo e oxidação de lipídios em bovinos
• Beneficiário: Lisia Bertonha Correa
• Modalidade de apoio: Bolsas no Brasil - Doutorado