CLASSIFICATION OF MONIEZIA EXPANSA : SHEEP TAPEWORM
PHYLUM :- PLATYHELMINTHES (Organ grade, acoelomate flatworms. )
SUB-CLASS :- EUCESTODA (Mesozoic tapeworms, larva with 6 hooks. )
ORDER :- CYCLOPHYLLIDEA (Scolex with four suckers. )
FAMILY :- TAENIIDAE (Uterus with lateral branches.)
GENUS :- Moniezia
SPECIES :- expansa
All over the world in sheep raising areas.
HABIT AND HABITAT
Commonly found in the small intestine of sheep. Generally 80% sheep are found to be infected by this worm
GENERAL CHARACTERSTICS OF MONIEZIA EXPANSA : SHEEP TAPEWORM
- Commonly called as Sheep tapeworms.
- Body divisible into scolex, neck and segments. Tapeworms measure approximately 600 cm.
- Scolex is adhesive organ and contains suckers.
- Neck is short area for forming new segments.
- Segments are much broader than long and contain interproglottidal glands.
- Each mature segment contains double set of genital organs.
- Life-cycle, includes egg cysticercoid in mites (intermediate host) and adults in sheep. Sheep becomes infested when it grazes grasses containing contaminated mites.
- Moniezia expansa causes various histopathological changes in the intestinal mucosa resulting into diarrhoea, dysentry and malabsorption.
Since the Tapeworm contains, much broader segments than long and all above features and ” hence it is Moniezia expansa.