The effect of hot season and nutrition on the oxidative status and metabolic profile in dairy goats during mid lactation

Abstract

The aim of this study was to evaluate the effects of the hot season and nutrition on the oxidative status and metabolic profile of lactating goats during mid lactation. Twenty-four Red Syrian goats were allocated into three groups that were offered the following diets: natural pasture (P), pasture + 500g/h per day of concentrate (PC) and hay plus 500g/h per day of concentrate (HC). Blood samples were taken in spring (85 ± 7 days in milk (DIM)) and summer (120 ± 7 DIM) and assayed for reactive oxygen metabolites (ROMs), α-tocopherol, glucose, triglycerides, cholesterol, non-esterified fatty acids, total protein, albumin and globulin concentrations and glutathione peroxidase (GHS-Px) and Super..