This study was realized to evaluate the effects of Baccharis dracunculifolia and Tamarindus indica L extracts, cashew nut shell liquid (CNSL) and clove oil blends on oxidative state of bulls finished in feedlot and fed with high-grain diets. A total of 32 young bulls were divided into four treatments: CONT, without natural extract; MIX2, inclusion of 2g/anim./d of natural mix; MIX4, inclusion of 4g/anim./d of natural mix; MIX6, inclusion of 6g/anim. /d of natural mix. The blood samples were collected of the all animals. The levels of protein carbonyl groups were 30% lower (P < 0.05) in plasma of bulls supplemented with of MIX4 and MIX6 as compared to CONT group. Ferric reducing ability of plasma (FRAP), an antioxidant marker, was 20% higher (P < 0.05) in the plasma of MIX6-fed animals when compared to CONT group. Thiobarbituric acid reactive substance (TBARS) levels were 38% lower (P < 0.05) in...

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