Effect of Probiotic (Saccharomyces cerevisiae and Bacillus subtilis) on broiler performance

Abstract

    The study  was conducted to determine the effect  of  Saccharomyces cerevisiae  and Bacillus subtilis on body weight gain , some serum parameter and salmonella colonization of cecum in broiler chicks.One hundred fifty 1 day old  male broiler chicks (Ross breed) were used in experiment ,the chicks were allocated into three groups and the first group as a control  in randomized design(basal diet) , the second group ( basal diet with 1% saccharomyces cerevisiae and Bacillus subtilis) ,and the third group ( basal diet with 2% saccharomyces cerevisiae and Bacillus subtilis) birds in each  group were fed ad libitum for a period of 38 days.

   The result showed that supplementation of saccharomyces cerevisiae and Bacillus subtilis 1% and 2% to the basal diet  decrease  cholesterol significantly ( p≤0.05) at 29 and 38 days and increase total protein p≤0.05)at 39 days , with no significant differences in another in  blood parameters such as blood glucose  and albumin.   

    Body weight of treated groups significantly different( p≤0.05) at  29 and 38 days of age compared with control group.

    The results showed that  saccharomyces cerevisiae and Bacillus subtilis decreased the number of Salmonella  count of the cecal content of treated groups(38 days old)  than control.