Effect of adding different levels of biotin to diet on some performance of broiler submitted to oxidative stress

Abstract

This study was conducted at poultry farm/ Abu- Ghraib/ Dept. Animal production/ College of Agriculture/ University of Baghdad from 2/10/1016 to 12/11/2016 to of Baghdad from 2/10/2016 to study the effect of adding biotin to the diet of broiler submitted to oxidative stress on some broiler performance traits. A total of 375, day old, unsexed Ross 308 broiler chicks was reared together until 14 day old then, distributed to five treatments with three replicates per each (25 chick/replicate). The oxidative stress was induced by adding 0.5% H2O2 to drinking water. The treatments was as follow: T1= negative control group without adding biotin+ normal drinking water. T2= positive control group without adding biotin+ drinking water with 0.5% H2O2. T3= 250 µg biotin/ kg diet + drinking water with 0.5% H2O2. T4= 350 µg biotin /kg diet + drinking water with 0.5% H2O2. T5= 450 µg biotin/ kg diet + drinking water with 0.5% H2O2. Showed that T4and T5 resulted in significant (p<0.05) increasing in fined body weight, accumulative gain, feed consumption and feed conversion ratio in comparison and productive index and dressing percentage with positive control group. We can concluded from this study that adding biotin to broiler diet at the rat 350 and 450 mg/kg could reduce the deleterious effect of oxidative stress