[Experimental ascariasis in the pigeon (Columba livia) caused by Ascaridia columbae (Gmelin ): research on the capacity of the larvae of Ascaridia. Download Citation on ResearchGate | On Jul 21, , T. Bhaskara Rao and others published Ascaridia columbae infection in a pigeon. The life cycle of Ascaridia columbae, the large intestinal roundworm of the pigeon , with descriptions of the preparasitic and parasitic stages, has been studied.

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All these ascarid eggs are similar in appearance to Heterakis gallinarum. The disease caused by Ascaridia worms is called ascaridiasis. If available, follow more specific national or regional recommendations for Ascaridia control.

Ascaridia ascadidia Poultry, reviewed and published by WikiVet at http: Ascaridia infections are especially harmful for young chicken up to 3 months old, especially if they suffer from vitamin or protein deficiency. Egg quality can also be impaired e.

They compete for nutrients, can cause mechanical damage of the gut’s wall, and may obstruct the intestine. Males have colubae sucker close to the anus and a copulatory bursa with two equal spicules f or attaching to the female during copulation. They destroy the tissues around them. The worms have a tubular digestive system with two openings, the mouth and the anus.

There are a no reports on confirmed resistance of Ascaridia worms to anthelmintics. Domestic Animals of North America. In other projects Wikimedia Commons.

Ascaridia – Wikipedia

This means that they have a short residual effector no residual effect at all. Afterwards they return to the gut’s lumen where they complete development to adult worms and the females start producing eggs.


Pasture rotation is also recommended. They also have a nervous system but no excretory organs and no circulatory systemi. All three species exhibit a direct lifecycle involving the release of eggs into the soil and the subsequent reingestion of them in food.

Members of the genus are primarily intestinal parasites of birds.

Predilection site of adult Ascaridia worms is the small intestine. Also in this site: Control of Ticks Biol. Such eggs can remain infective ascariida the birds’ litter for one year and longer.

File:Ascaridia columbae ExpelledByAnthelminticJPG – Wikimedia Commons

Ingested eggs release the larvae in the gut’s lumen where they molt and remain for about 10 days. You may be interested in an article in this site on medicinal plants against external and internal parasites. The gastrointestinal tract may also be distended in chronic cases. From Wikipedia, the free encyclopedia. So far no vaccine is available against Ascaridia worms.

Interscience Publishers, New York and London, pp.

Birds become infected after eating infective eggs, either directly with contaminated food or water, or indirectly through infected earthworms. As a consequence treated animals are cured from worms but do not remain protected against new infections. Ascaridia is a genus of parasitic roundworms belonging to the ascarids that infects chickens, turkeys, ducks, geese, grouse, quails, pheasants, guinea fowls and other domestic and wild birds.

Alternatively, post mortem examination should demonstrate enteritis – caused by the emergence of larvae from the mucosa.


Ascaridia Dujardin Ascaridia dissimilis infects mainly turkey. Symptoms of heavy infection include anorexia asaridia, diarrheastunted growthlistlessness, a change in behavior, and enteritis. Clinical signs are more common in young chickens less than three months old, as older chicken develop some resistance to infection.

File:Ascaridia columbae ExpelledByAnthelmintic02.JPG

The prepatent period time between infection and first eggs shed is 6 to 8 weeks, depending on the worm species and the host. Earthworms can ingest large amounts of infective eggs and act as mechanical vectors.

Adult female worms in the small intestine pass eggs with the feces. The most relevant species for domestic birds are: The female ovaries are large and the uteri end in an opening called the vulva, which in these worms is located close to the middle of the body.

Infection may be diagnosed on clinical signs and fecal examination. This means that if an anthelmintic fails to achieve the expected efficacy against Ascaridia worms it is most likely that either the product was unsuited for the control of these wormsor it was used incorrectly. Clumbae eggs of Ascariidia. Retrieved from ” https: Adult worms are also harmful.

This page was last edited on 20 Juneat To learn more about vaccines against parasites of livestock and pets colunbae lick here.