Spirochetosis

PREPARED BY : MUBIN FAISAL

AHMED Ph # +923327592192

Spirochetosis

The bacterium Borrelia anserina infects chickens, turkey, geese, ducks, pheasants, grouse and canaries with morbidity and mortality up to 100%. It is transmitted by arthropods, e.g. Argas persicus, and occasionally by infected faeces. The bacterium is poorly resistant outside host but may be carried by Argas persicus for 430 days. Brachyspira pilosicoli, previously known as Serpulina pilosicoli, is an intestinal spirochaete that can be associated with inflammation of the large intestine in a broad range of mammals and birds. It has been associated with typhilitis, diarrhoea, reduced egg production, and egg soiling in chickens.

Sign

Depression. Cyanosis. Thirst. Often diarrhoea with excessive urates. Weakness and progressive paralysis. Drops in egg production may be seen in

both systemic and intestinal forms

Lesions

Marked splenomegaly. Spleen mottled with ecchymotic

haemorrhages. Liver enlarged with small haemorrhages. White necrotic foci on liver. Mucoid enteritis.

Marked splenomegaly.

Spleen mottled with ecchymotic haemorrhages

Liver enlarged with small haemorrhages

White necrotic foci on liver

Mucoid enteritis