[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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Biology, prevention and control.

File:Ascaridia columbae ExpelledByAnthelmintic02.JPG

All three species exhibit a direct lifecycle involving the release of eggs into the soil and the subsequent asczridia of them in food. Ascaridia Scientific classification Kingdom: They occur worldwide and are very common in chicken. Adult worms may occasionally reach the cloaca and be found in the feces and the oviduct and infect the hens’ eggs. All these ascarid eggs are similar in appearance to Heterakis gallinarum.

Ascarid eggs are resistant to desiccationpersist for a long time in the environment, and remain directly infective. Earthworms can ingest ascwridia amounts of infective eggs and act as mechanical vectors.

There are a no reports on confirmed resistance of Ascaridia worms to anthelmintics. To ensure that they remain worm-free the animals have to be dewormed periodically, depending on the local epidemiological, ecological and climatic conditions.

Alternatively, post mortem examination should demonstrate enteritis ascarridia caused by the emergence of larvae columgae the mucosa. The worms have a tubular digestive system with two openings, the mouth and the anus. Heavy infections can cause a partial or total obstruction of the gastrointestinal tract.

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Larvae in the gut’s lining are the most damaging stage. By using this site, you agree to the Terms of Use and Privacy Policy. Such eggs can remain infective in the birds’ litter for one year and longer. Ascaridida Secernentea genera Parasitic nematodes of tetrapods Parasites oclumbae birds. The most relevant species for domestic birds are: These worms do not affect dogscats, cattle sheep, goats, horses or swine. Adult worms are also harmful. 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.

This means that if an coumbae 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. Infection may be diagnosed on clinical signs and fecal examination. Lesser asacridia species such as A.

Symptoms of columnae infection include anorexiadiarrheastunted growthlistlessness, a change in behavior, and enteritis. Therefore, control of infection involves the prevention of contamination of feeders and drinkers with feces by raising them off the groundpasture rotation, and regular dosing with the above-mentioned treatments, especially in young birds. 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 axcaridia the body.


To learn more about vaccines against parasites of livestock and pets c lick here. Members of the genus are primarily intestinal parasites of birds. The prepatent period time between infection and first eggs shed is 6 to 8 weeks, depending on the worm species and the host. For birds kept outdoors it is advisable to restrict their access to humid environments where earthworms are usually more abundant.

They are up to 12 cm long and of a whitish color, rather transparent. They compete for nutrients, can cause mechanical damage of the gut’s wall, and may obstruct the intestine. Piperazine salts, levamisoleand benzimidazoles are all reported treatments. Predilection site of adult Ascaridia worms is the small intestine.

So far no vaccine is available against Ascaridia worms. The nematodes of vertebrates. Views Read Edit View history.

File:Ascaridia columbae ExpelledByAnthelminticjpg – Wikimedia Commons

The gastrointestinal tract may also be distended in chronic cases. Ascaridia galli infects mainly chicken, but also turkey, geese, guinea fowls, etc. Columba hens may produce soft eggs with thin and misshapened shells. They also have a nervous system but no excretory organs and no circulatory systemi.

Control of Ticks Biol. Ascaridia Dujardin Ascaridia galli, Ascaridia columbae, Ascaridia dissimilis.