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New page: == ''Paramphistomum'' Species == *Paramphistomomes are rare in the UK, but can cause severe losses in ruminants in the wet tropics. *The adult fluke is plump and cylindrical (unusual for...
== ''Paramphistomum'' Species ==
*Paramphistomomes are rare in the UK, but can cause severe losses in ruminants in the wet tropics.
*The adult fluke is plump and cylindrical (unusual for a trematode) and attaches to the wall of the rumen without causing serious damage.
*The eggs are like those of ''Fasciola'', but are colourless.
*The intermediate hosts are water snails.
*These shed cercariae that form metacercariae on vegetation.
*Disease occurs if metacercariae are eaten in large numbers.
*Enteritis and diarrhoea result when immature flukes migrate along the small intestine (where the metacercariae excyst) towards the rumen.