Page:Poultry diseases, causes, symptoms and treatment, with notes on post-mortem examinations (IA cu31924000931570).pdf/26



The important part played by micro-organisms in causing and spreading disease must be understood before the value of disinfection can be fully appreciated. The poultryman must develop a sense of sight that sees lurking microbes at every turn, especially in unclean corners. Figure 5 shows germs revealed by the microscope in the excrement of a bird suffering from