COMPARISON BETWEEN ORGANIC CHROMIUM AND ORGANIC ACIDS FOR REDUCING EXPERMINTALY INFECTED BROILER CHICKS BY SALMONELLA TYPHIMURIUM

Abstract

This study was conducted to compare the effect of adding organic chromium (Biochrome) and organic acids (Galli acids) for reducing experimentally infected broiler chicks by Salmonella typhimurium . A total of 400 one day old broiler chicks were divided into four dietary groups which were: un-treated negative control (T1) , 400 ppb organic chromium / kg feed (T2) , 0.6 of organic acids / kg feed (T3) and positive control (T4) . After one day of feeding T2 ,T3 and T4 chicks were oral experimentally infected by S. typhimurium. Results have shown : Mortality of positive control broiler chicks were 70 % , added organic chromium and organic acids reduced chicks mortality to 10 % in each , also the results revealed that the addition of organic acids and organic chromium reduced S. typhimurium in the intestine content and its recommended for use to prevention S. typhimurium infection in broiler chicks due to the improvement of health status depending on the increase of lymphocyte cells number and immunoglobulin concentration after 10 and 21 days of experimentally infected , also the improvement in the live body weight and weight gain .