Adult birds will generally have some immunity to keep worm numbers in check but young birds generally have poor immunity and may become infected with overwhelming numbers worms which can cause intestinal blockage, a life threatening complication of disease. It take around 3 weeks from the time a bird ingests round worm eggs until they complete their life cycle, the adults mature and are capable of laying eggs which are passed in the bird’s droppings.īirds most at risk of serious disease are young birds that have just fledged and are feeding on the ground where adult birds have passed droppings with worm eggs. The larvae are digested free from their eggs and the burrow into the intestinal lining causing discomfort and possible diarrhoea. Infection occurs via ingestion of worm eggs containing larvae. Round worm eggs are thick shelled and can survive in the environment for many months. platyceri, which is restricted to parrots. columbae that affects pigeons and parrots and A. galli, which affects poultry, pigeons and parrots, A.
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