Effect of Probiotic Bacteria Utilization on Serum Cholesterol and Triglycrides Contents and Performance of Broiler Chickens

A study was conducted to determine the effect of diet supplementation with Lactobacillus acidophilus and Lactobacillus casei alone or in combination with water on total cholesterol and triglycerides concentrations in the blood serum and also, on growth performance of broilers. Two hundred one day old male Ross 308 broilers were randomly assigned to 5 treatments, with 4 replicate, 10 birds per each. Experimental diets consist of basal diet as control (T1), basal diet with water containing 0.5% L. casei (T2), basal diet with water containing 0.5% L. acidophilus (T3), basal diet plus 1% L. casei (T4) and basal diet plus 1% L. acidophilus (T5), were fed to birds throughout 1 to 42 day breeding period. Total cholesterol (Chol) and triglyceride (TG) were measured in blood samples of day 40.The amount of total Chol and TG in the serum did showed a significant decline (P<0.01) in all dietary groups except control. The best performance was detected in birds fed on T3 diet and followed by dietary T5 group; however, all treatments were presented a good performance in compared to control group. It was concluded that diet supplementation with L. acidophilus and L. casei in combination with water and or alone, significantly decreased total cholesterol and triglycerides concentrations in the blood serum of broiler chickens accompanying with improving feed conversion ratio, body weight gain and finally carcass yield.