The Effect of Nano Copper and Mannan Oligosaccharide Supplementation on Intestinal Microflora and Weight of Internal Body Organs in Broiler Chicks

This study was undertaken to determine the influence nano oxide copper and mannan oligosaccharide supplementation on intestinal microflora and weight of internal body organs in broiler chicks. One hundred-sixty of Cobb-500 broiler chicks at 14 days of age were randomly assigned to four treatments. For each treatment، four replicates (10 chicks per replicate) were considered. Experiment was conducted as a factorial model in a completely randomized design. Experimental factors were: 0 and 100 mg/kg of copper levels and 0 and 1 g/kg mannan oligosaccharide. To measure of intestinal microflora from cloaca contents were sampled. Separation of internal body organs at the end of the experiment (42 day) was performed. Mannan oligosaccharide did not have any significant effect on the population of lactic acid producing bacteria and Enterobacteriaceae. Nano copper significantly reduced population of Enterobacteriaceae in cloaca (P<0. 05)، but do not show any significant effect on population of lactic acid producing bacteria. Weight of internal body organs، final body weight and abdominal fat were not affected by treatments (P>0. 05).