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=== '''~~''TRICHOSTRONGYLUS TENIUS''''' ===~~

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{{Taxobox

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*Wide host range, but particularly important in grouse (and geese).

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|name =Trichostrongylus tenius

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*Found in the intestine and caeca.

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|class =[[Nematodes|Nematoda]]

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*Appearance, life-cycle and epidemiology of this worm very similar to that of the ''Trichostrongylus~~'' species of ruminants (hypobiosis can occur in winter).~~

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|super-family =[[Trichostrongyloidea]]

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*On moorland, the L3 accumulate in the heather tips eaten by grouse.

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}}

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*Contributes to (but probably not the main cause of) the cyclical crashes in grouse populations.

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Also known as: '''''Trichostrongylus externuatus

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*Treatment is achieved by putting out dishes of medicated grit.

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*Grouse are particularly vulnerable in spring (when body condition is often poor after the winter):

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**infection

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~~→ reduced appetite and hypoalbuminaemia~~

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~~→ reduced survivability and egg-laying.~~

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[[~~Category:~~Trichostrongyloidea]][[Category:~~Poultry_Nematodes~~]]

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==Hosts==

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[[Category:~~To_Do_-_Parasites~~]]

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Game birds, chickens, ducks, geese, and turkeys.

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==Identification==

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''T. tenius'' is of the superfamily [[Trichostrongyloidea]]. The eggs are around 75μm in length, with a thin, smooth shell.

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==Life Cycle==

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The life-cycle and epidemiology of ''T. tenius'' is very similar to that of the [[Trichostrongylus axei|''Trichostrongylus'']] species of ruminants, and hypobiosis can occur in winter. Eggs are passed out in the faeces. The larvae develop in the heather, and are ingested by a host e.g. a grouse, when feeding on the heather. Worms are capable of surviving for up to 2 months, and are capable of causing damage to the intestine and the caecum.

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{{Learning

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|literature search = [http://www.cabdirect.org/search.html?q=(%22Trichostrongylus+tenius%22)+ ''Trichostrongylus tenius'' publications]

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}}

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[[Category:Trichostrongyloidea]][[Category:Avian Nematodes]]

EllzBells

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Trichostrongylus tenius (view source)

Revision as of 12:32, 12 January 2014