Effects of supplementation with two sources and two levels of copper on meat lipid oxidation, meat colour and superoxide dismutase and glutathione peroxidase enzyme activities in Nellore beef cattle - Correa, Lísia Bertonha; Zanetti, Marcus Antônio; Del Claro, Gustavo Ribeiro; Paiva, Fernanda Alves de; Silva, Saulo da Luz e; Saran Netto, Arlindo (British Journal of Nutrition, 2014)