Studies on effects of prebiotics (MOS) as growth promoter in broilers.

The experiment was conducted to evaluate the effects of prebiotics (MOS) and antibiotic as feed additives on performance of broilers. Two hundred day old “Marshal FG “ broiler chicks were divided into four equal groups viz. A, B, C and D. Group A was kept as control. The birds from group B received diets with prebiotic Mannan Oligosaccharide (MOS) @ 250 g/ton of feed. The birds from group C received diet with feed additive Bacitracin Methylene Disalicylate (BMD) @ 200 g /ton of feed. Group D received diet with feed additive Virginiamycin @ 500g/ ton of feed. Effect of feed treatments on live weights, gain in weights and feed consumption of birds was statistically non significant. The feed conversion ratios (FCR) for groups A to D were 2.124, 1.972, 2.022 and 2.188, respectively, which revealed significant difference among the treatments. Nitrogen retention percent was higher for all the treatment groups than control group. Group C recorded higher net profit per kg followed by group B, A and D, respectively. It is concluded that prebiotic (MOS) and BMD can be used in the diets as growth promoters for better production performance of broilers in terms of growth, FCR and economics of production.