Poultry that have an infection show a variety of symptoms,such us reapiratory problems,diarrhoea and paralysis.It should be emphasised       at the outset that prevention of infection in a poultry flock through sound management is very important.


     The disease may result from a coliform infection alone as in primary infection or in combination with other disease agents as a complicating       or secondary infection. Secondary infections commonly occur as a part of the classic air sac disease syndrome as a complication       with Mycoplasma gallisepticuminfections.More


     viral disease in birds, characterized by wart-like nodules on the skin and diphtheritic necrotic membranes lining the mouth and upper        respiratory system. It has been present in birds since the earliest history.More 


      The disease is observed in one of two forms, acute outbreaks with high morbidity and high mortality in young birds, and a chronic         condition affecting adult birds. It is more of a problem in turkeys than in chickens.


      One of the most common parasitic roundworms of poultry occurs in chickens and turkeys. Adult worms are about one and a half to three         inches long and about the size of an ordinary pencil lead. Thus, they can be seen easily with the naked eye.


     There are two metabolic disorders of major commercial importance in poultry that involve the occurrence of fatty deposits in the liver.        Fatty Liver and Kidney Syndrome (FLKS) affects young birds and the main manifestations, lipid infiltrations into liver and many other        organs, are apparently secondary effects of the primary lesion that lies in carbohydrate metabolism. More