Atlas of livestock parasites
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Atlas of Parasites Contents Information sources Glossary Administration

Gastrointestinal Nematodes

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Endoparasite


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Sudanese camels harbour a number of helminth parasites. Nematodes, cestodes and trematodes infecting Sudanese camels are well studied and documented.
In the Eastern Sudan eight species of gastrointestinal nematodes were reported. These nematodes are:

Haemonchus longistipes, Trichostrongylus probolurus, Trichostrongylus spp, Cooperia pectinata, Impalia tuberculata, Oesophagostomum columbianium Trichuris globulosa and Setaria labiatopapilosa.

High infection was caused by H. longistipes. Prevalence of camel haemonchosis increases during  changes in grazing behaviour (from feeding on upper bushes to feeding on grasses) as a result of removal of bushes, shrubs and trees for rain-fed mechanized crop production schemes. Thus increasing the chances of picking up of ova and/ or larvae from pasture.
A positive correlation between rainfall and egg count, as well as high infection rate during the rainy season was revealed in the Butana area (mid-eastern Sudan).

Pasture infestation of camel-breeding area in the same region and the presence of high number of Trichostrongylus spp. and Haemonchus spp.

Haemonchus Larvae were found to decrease towards winter and disappear completely in Summer as they were detected only during the rainy season.

This question has been explained, when were detected hypobiotic larvae of H. longistipes in the abomasi of camels in Butana area during the dry season. H. longistipes in Butana area survives as both adult and arrested fourth stage larva (L4) during the hot dry summer. This finding is so essential to be taken into consideration before the application of any successful control measures.

H. contortus, on the other hand, was found to infect camels sharing grazing with sheep.


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