malabsorphion syndromeOccurrence: Worldwide.
Species affected: Chicken, turkey. Age affected: Young (2-20 weeks).
Causes: Reovirus related to tenosynovitis virus as well as other viruses. Spread by vertical or horizontal routes and faecal contamination.
Effects: Incubation period is 7-14 days. Stunting, abnormal feathering, pale combs, wattles, and legs are seen. Higher early mortality, weak legs, CNS signs (tremours, incoordination) and passage of undigested food in faeces can also occur. Delayed and poor egg production peaks may occur in layers and breeders.