Potential of fungal exopolysaccharide as novel source for prebiotic supplement to broiler chicken diet

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  • W PRATHUMPAI Researcher, 113 Thailand Science Park, Phahonyothin Road, Klong Nueng, Klong Luang, Pathum Thani 12120 Thailand
  • P RACHTAWEE Research Assistant, Bioresources Technology Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency
  • S KHAJEERAM 113 Thailand Science Park, Phahonyothin Road, Klong Nueng, Klong Luang, Pathum Thani 12120 Thailand



Beta-glucan, Denaturing gradient gel-electrophoresis, Exopolysaccharide, Ophiocordyceps dipterigena, Prebiotic


The potential of using a fungal exopolysaccharide produced by Ophiocordyceps dipterigena BCC 2073, as a prebiotic in broiler chicken diet by supplementing the diet at different concentrations (0-120 g/25 kg feed) was evaluated over a period of 42 days. Intestinal microbial populations in faeces were identified. The effects of a combination of pre- and pro-biotic supplements were also studied by combining exopolysaccharide with Lactobacillus acidophilus BCC 13938. Total Lactobacilli sp. counts in faecal samples of chickens fed diet containing both exopolysaccharide and L. acidophilus BCC 13938 were 50-folds higher than the non prebiotic but probiotic supplemented groups. Total body weight, body weight increase, feed intake, feed conversion efficiency and growth rate of chickens on a diet supplemented with 150 g of L. acidophilus BCC 13938 plus 1.5 kg of water or 30 g of O. dipterigena BCC 2073 exopolysaccharide plus 150 g of L. acidophilus BCC 13938 plus 0.75 kg of water were higher than those fed other combinations of supplements. The microbial community of faecal samples from chickens supplementation with exopolysaccharide had reduced numbers of E. coli, Staphylococcus sp., Streptococcus sp., Enterococcus sp. and increased numbers of Lactobacilli and Bacilli. The numbers of faecal pathogenic bacteria inversely correlated with total body weight, body weight increase, feed intake, feed conversion efficiency and growth rate. This is the first report on the benefit of fungal exopolysaccharide as a novel prebiotic dietary supplement to chicken.


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How to Cite

PRATHUMPAI, W., RACHTAWEE, P., & KHAJEERAM, S. (2015). Potential of fungal exopolysaccharide as novel source for prebiotic supplement to broiler chicken diet. The Indian Journal of Animal Sciences, 85(12), 1362–1369. https://doi.org/10.56093/ijans.v85i12.54403