Atlas of livestock parasites
digitized collection of microscopical preparations

Atlas of Parasites Contents Information sources Glossary Administration

Trichuris discolor (cattle)

Category:


Species:
Endoparasite


Description:
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Nematode (order Enoplida)

"whipworm"

Distribution: widespread.

Host: None has been attributed to natural Trichuris infection in cattle. 

Life Cycle:
Direct roundworm life cycle in cecum; infective larvae develop within eggs after at least 3 weeks on pasture. These are resistant to cold temperatures and drying, so may remain infective for several years. Animals are infected by ingesting embryonated eggs. Adults develop in 1 to 3 months. 

Diagnosis:  Long roundworms; the front or anterior part is long and thin while the posterior is much thicker, giving the appearance of a whip. Posterior of male is curled.  Barrel-shaped eggs are seen in feces. 

Clinical features: Whipworms are widespread, but effects of infection have not been determined. 

Control: Treatment of cattle with an anthelmintic is most effective. Pasture management is also useful.


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