Alleviation of negative effect of heat stress through supplementations of cinnamon () and turmeric ( L) powders in diets of broiler chickens.

This study was designed to assess the effect of cinnamon powder (CNP) and turmeric powder (TP) on growth performance, antioxidant status, liver function, meat quality and lactate dehydrogenase activity of broiler chickens under heat stress conditions. A total of 200, one day old as-hatched broiler chickens (ROSS 308) were randomly allotted into five treatments with four replicates ( = 10). Treatment groups were control (C): fed basal diet; T1: 0.5% CNP; T2: 1.0% CNP; T3: 0.5% TP and T4: 1.0% TP. Results indicated that body weight gain, feed intake and feed conversion ratio were improved significantly ( < 0.05) in treatments fed CNP and TP. Serum malondialdehyde and lactate dehydrogenase activity were decreased ( < 0.05) while blood superoxide dismutase, catalase and glutathione peroxidase activity were increased ( < 0.05) in treatments fed CNP and TP. Addition of CNP and TP decreased ( < 0.05) serum aspartate aminotransferase, alanine aminotransferase and alkaline phosphatase activity. Treatments fed CNP and TP resulted increased ( < 0.05) breast and thigh meat monounsaturated fatty acid, polyunsaturated fatty acid, linoleic acid, oleic acid and water holding capacity while decreased ( < 0.05) saturated fatty acid and cook loss. In conclusion CNP and TP possess advantageous effect on growth performance, antioxidant status, liver function, meat quality and lactate dehydrogenase activity.