Epidemiological investigations of Salmonella and Escherichia coli associated morbidity and mortality in layer chickens in Hawassa city, Southern Ethiopia.

Although the incidence of chicken morbidity and mortality was relatively low in the present study, important risk factors have been identified in the poultry farms of Hawassa City, southern Ethiopia. Therefore, comprehensive poultry farm management practices are needed to mitigate risk factors for morbidity and mortality as well as colibacillosis and salmonellosis. Identification of the serotypes of spp. and should be carried out.