Dissertação
Crescimento e perfil oxidativo de juvenis de Rhamdia quelen alimentados com diferentes níveis de vitamina E (α-tocoferol) na dieta
Fecha
2013-12-04Registro en:
UCZAY, Juliano. Growth and oxidative profile of rhamdia quelen juveniles fed different levels of dietary vitamin E (α-tocopherol). 2013. 53 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2013.
Autor
Uczay, Juliano
Institución
Resumen
The growth parameters, biochemical, and blood oxidative stress were evaluated in juvenile jundiás fed different levels of vitamin E (0, 200, 300 and 400 mg kg-1 in diet) after 60 days. At the end of the experiment, we observed improvements in growth variables: total length, standard, specific growth rate and condition factor, with the addition of vitamin E in the diet. The erythrocyte count was higher in diets containing vitamin E. The level of 400 mg kg-1 of vitamin E, decreased plasma triglyceride content and increased resistance of erythrocytes. Doses of 300 and 400 mg kg-1, reduced oxidative stress as oxidative biomarkers evaluated in the brain, liver, gills and muscle substances which thiobarbituric acid reactive substances (TBARS), lipid hydroperoxides (LOOH), superoxide dismutase (SOD), catalase (CAT), glutathione-S- transferase (GST) and the content of non-protein thiol groups (NPSH). Doses of vitamin E in the diet of juvenile catfishes above 300 mg kg-1 promotes improvements in growth parameters , and blood antioxidant system .