Dietary Supplementation of Lactobacillus Sporogenes on Performance and Serum Biochemico - Lipid Profile of Broiler Chickens

Abstract

An experiment was conducted to study the effect of dietary supplementation of probiotic Lactobacillus sporogenes (L. sporogenes) on performance and serum biochemicodipid profile of broder chickens. One hundred and twenty, day-old commercial broder chicks were distributed equady into 3 groups of 40 chicks each, which was further rephcated 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 200 mg per kg feed. Body weight gain increased and feed conversion ratio improved significandy due to dietary supplementation of 100 mg probiotic per kg diet. However, no further benefits on the above parameters could be observed by increasing the level of supplementation from 100 to 200 mg per kg. Leg abnormahty score is not influenced by probiotic supplementation in the diet. However, the bone breaking strength and bone ash content increased significandy by probiotic supplementation at 100mg per kg diet. The concentration of protein and calcium increased significandy 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 hpoprotein (LDL) cholesterol, very low-density hpopro-tein (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 conceded that dietary supplementation of Lactobacillus sporogenes (6×108 spore per g) at 100 mg per kg diet significanly 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. © 2006, Japan Poultry Science Association. All rights reserved.