Antibacterial Activity of Lactobacillus Species Isolated from Poultry Waste (Droppings) Against Poultry Pathogens

This study aimed to provide information on antibacterial activity of lactobacilli from poultry wastes against poultry pathogens.A bacteriocin-producing lactobacilli strain were isolated from poultry droppings.Activity against poultry pathogens was carried out using both agar well diffusion and disk paper method.Eight species of lactobacilli were isolated, characterized and identified from poultry waste and were screened for their antibacterial potency.Out of the eight species only L. buchneri, L. helvelticus, L. delbreuchi and L. acidophilus were active against all the tests organisms.The zone of inhibition ranging from 3.00±0.00to 35.17±0.17mm with the highest potency observed on L. delbruckii (35.17±0.17mm) against E. coli while the least zone of inhibition against Salmonella typhi with 3.00±0.00mm.All isolated lactobacilli demonstrated inhibition against one or more selected pathogens, they can, therefore, be used as a means to control of poultry pathogens.The results suggest the bacteriocins from isolated species could be useful for the production of antibacterial agents in poultry production.