Handan Aydin , Mehmet Can Gunduz , Hasret Demircan Yardibi , Effects of Carazolol on Plasma Malondialdehyde, Superoxide Dismutase and Catalase in Sheeps, Journal of Animal and Veterinary Advances, Volume 8,Issue 4, 2009, Pages 771-773, ISSN 1680-5593, javaa.2009.771.773, (https://makhillpublications.co/view-article.php?doi=javaa.2009.771.773) Abstract: In this study, the effects of beta receptor blocker (carazolol) on the main detoxifying enzymes, Superoxide Dismutase (SOD) and Catalase (CAT) in sheeps were investigated. Two group (n = 6) were design. 1 mL ewe-1 of serum physiologic were administered i.m. to the control group (Group 1) and 0.5 mg ewe-1 of carazolol were injected i.m. to the treatment group (group 2). After treatment the blood samples were collected at 24, 48 and 72 h. No differences were observed in antioxidant enzyme values in sheep plasma. Also, no effect was seen on oxidative stress marker. Here, we show that carazolol may be alternatively used as a β-blocker agent in sheeps. Keywords: Carazolol;antioxidant status;sheep;superoxide;dissmutase;catalase;plasma