The effect of Antibiofin® on growth performance in broiler chickens

The aim of this study is investigating the effect of Antibiofin® on feed intake, weight gain and feed conversion ratio (FCR) in broiler chickens. A total of 200 day-old broiler chicks, Ross strain, were purchased and 20 chicks randomly were bled for determination of vaccination time and remaining chicks divided into 3 equal groups and each group divided into 3 subgroup of 20 chicks. Chickens of groups A and B received 0.1% and 0.2% of Antibiofin® respectively in drinking water .Chickens of group C were kept as control group and did not receive Antibiofin®. All groups were vaccinated with live Newcastle vaccine (B1 strain) intraocularly and AI-ND killed vaccine (subtype H9N2) subcutaneously of neck back. Mean feed intake, weight gains, and feed conversion ratio (FCR) of 3 groups were determined at 21, and 42 days.The results of this study showed that receiving of Antibiofin® at 0.1% and 0.2% had no effect on feed intake, weight gain and FCR.