2006 Volume 43 Issue 3 Pages 235-240
An experiment was conducted to study the effect of dietary supplementation of probiotic Lactobacillus sporogenes (L. sporogenes) on performance and serum biochemico-lipid profile of broiler chickens. One hundred and twenty, day-old commercial broiler chicks were distributed equally into 3 groups of 40 chicks each, which was further replicated to 8 groups of 5 each. The chicks were placed on one of three dietary treatments : basal, basal with probiotic (6×108 spore of Lactobacillus sporogenes per g) at 100 or 200mg per kg feed. Body weight gain increased and feed conversion ratio improved significantly due to dietary supplementation of 100mg probiotic per kg diet. However, no further benefits on the above parameters could be observed by increasing the level of supplementation from 100 to 200mg per kg. Leg abnormality score is not influenced by probiotic supplementation in the diet. However, the bone breaking strength and bone ash content increased significantly by probiotic supplementation at 100mg per kg diet. The concentration of protein and calcium increased significantly due to dietary supplementation of L. sporogenes. Neither concentration of inorganic phosphorus nor activities of enzymes such as serum glutamate-oxaloacetate transminae (SGOT), serum glutamate-pyruvate transaminase (SGPT) and alkaline phosphatase (ALP) in serum were influenced due to L. sporogenes supplementation. Serum total cholesterol, low-density lipoprotein (LDL) cholesterol, very low-density lipoprotein (VLDL) cholesterol and triglycerides were reduced significantly by dietary supplementation of L. sporogenes at 100mg per kg diet. However, high-density lipoprotein (HDL) cholesterol of birds was not influenced by L. sporogenes supplementation. It is concluded that dietary supplementation of Lactobacillus sporogenes (6×108 spore per g) at 100mg per kg diet significantly enhanced body weight gain, improved feed conversion ratio, bone ash and bone breaking strength and lowered total cholesterol, VLDL cholesterol and triglycerides concentrations in the serum of broiler chickens.