[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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There are a no reports on confirmed resistance of Ascaridia worms to anthelmintics.

They columnae for nutrients, can cause mechanical damage of the gut’s wall, and may obstruct the intestine. Ascaridia dissimilis infects mainly turkey. Lesser known species such as A. Therefore, control of infection involves the prevention of contamination of asxaridia and drinkers with feces by raising them off the groundpasture rotation, and regular dosing with the above-mentioned treatments, especially in young birds.

For birds kept outdoors it is advisable to restrict their access to humid environments where earthworms are usually more abundant. Ingested eggs release the larvae in the gut’s lumen where they molt and remain for about 10 days.

File:Ascaridia columbae ExpelledByAnthelmintic05.jpg

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.

It is much more abundant in traditional farming with outdoor run than in industrial production facilities. A Pocket Guide to: In other projects Wikimedia Commons.

Adult Ascaridia worms are they largest roundworms found in domestic birds. All these ascarid eggs are similar in appearance to Heterakis gallinarum. Ask your veterinary doctor! Nematodes from the genus Ascaridia parasitizing psittaciform birds: Laying hens may produce soft eggs with thin and misshapened shells. Ascaridia columbae infects mainly pigeons in Africa.


So far no vaccine is available against Ascaridia worms.

Some compounds with a narrower spectrum are also effective against these worms, e. All these measures are particularly important for young birds. Heavy infections can cause a partial or total obstruction of aascaridia gastrointestinal tract.

You may be interested in an article in this site on medicinal plants against external and internal parasites. Ascaridia galli infects mainly chicken, but also turkey, geese, guinea fowls, etc. These worms do not affect dogscats, cattle sheep, goats, horses or swine.

Egg quality can also be impaired e. Members of the genus are primarily intestinal parasites of birds.

Males have a sucker close to the anus and a copulatory bursa with two equal spicules f or attaching to the female during copulation. Alternatively, post mortem examination should demonstrate enteritis – caused by the emergence of larvae from the mucosa.

To prevent or at least reduce Ascaridia infections it is recommended to keep the birds’ bedding as dry as possible and to frequently change it, because development of the worm’s eggs needs humidity. Older birds become progressively resistant, which reduces both the harm and the reproduction of the worms, i.

Females are longer than males.

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. They occur worldwide and colkmbae very common in chicken.

File:Ascaridia columbae ExpelledByAnthelminticJPG – Wikimedia Commons

Adult female worms in the small intestine pass eggs with the feces. Interscience Publishers, New York wscaridia London, pp. Afterwards they return to the gut’s lumen where they complete development to adult worms and the females start producing eggs. Control of Flies Biol. Ascaridia columbe Poultry, reviewed and published by WikiVet at http: Birds become infected after eating infective eggs, either directly with contaminated food or water, or indirectly through infected earthworms.


The worms have a tubular digestive system with two openings, the mouth and the anus. Ascaridia infections are especially harmful for young chicken up to 3 months old, especially if they suffer from vitamin or protein deficiency.

Experimental life cycle of Ascaridia columbae in intravenously infected pigeons, Columba livia.

Clinical signs are more common in young chickens less than three months old, as older chicken develop some resistance to infection. Such eggs can remain infective in the birds’ litter for one year and longer. Pasture rotation is also recommended. All three species exhibit a direct lifecycle involving the release of eggs into the soil and the subsequent reingestion of them in food.

Ascaridida Secernentea genera Parasitic nematodes of tetrapods Parasites of birds. The eggs of A. Symptoms of heavy infection include anorexiadiarrheastunted growthlistlessness, a change in behavior, and enteritis.

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.

Retrieved from ” https: Ascarid eggs are resistant to desiccationpersist for a long time in the environment, and remain directly infective. Details Written by P. Poultry Health and Disease. Por favor,activa el JavaScript!