Difference between revisions of "Anoplocephala"
| (5 intermediate revisions by 3 users not shown) | |||
| Line 1: | Line 1: | ||
| − | {{ | + | {{OpenPagesTop}} |
| − | |||
{{Taxobox | {{Taxobox | ||
|name = ''Anoplocephala | |name = ''Anoplocephala | ||
| Line 9: | Line 8: | ||
|order = | |order = | ||
|super-family = | |super-family = | ||
| − | |family = ''Anoplocephalidae | + | |family = ''[[Anoplocephalidae]] |
|sub-family = | |sub-family = | ||
|genus = | |genus = | ||
| Line 36: | Line 35: | ||
The prepatent period is 6-10 weeks. | The prepatent period is 6-10 weeks. | ||
| + | |||
| + | {{Learning | ||
| + | |flashcards = [[Cestodes_Flascards|Cestodes Flashcards]] | ||
| + | |literature search = [http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=Anoplocephala&occuring1=title&rowId=2&options2=AND&q2=&occuring2=freetext&rowId=3&options3=AND&q3=&occuring3=freetext&x=64&y=11&publishedstart=yyyy&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all ''Anoplocephala'' publications] | ||
| + | |Vetstream = [https://www.vetstream.com/canis/search?s=tapeworm Cestoda] | ||
| + | }} | ||
| + | |||
| + | |||
| + | {{review}} | ||
| + | |||
| + | {{OpenPages}} | ||
[[Category:Anoplocephalidae]] | [[Category:Anoplocephalidae]] | ||
| − | + | ||
[[Category:Expert_Review]] | [[Category:Expert_Review]] | ||
[[Category:Horse Parasites]] | [[Category:Horse Parasites]] | ||
Latest revision as of 17:41, 4 June 2016
| Anoplocephala | |
|---|---|
| Class | Cestoda |
| Family | Anoplocephalidae |
Introduction
Anoplocephala is from the family Anoplocephalidae. Several species of Anoplocephala occur in equidae, but A. perfoliata is the only common species in the UK. It is an equine cestode, more commonly known as a tapeworm. It is currently commonly seen in horses within the UK, usually affecting younger horses.
Identification
Superficially, A. perfoliata looks more like a trematode than a tapeworm, but closer inspection reveals that the body compromises many segments that are wide, but very short. These parasites have no hooks, but do have large suckers that allow the parasite to attach to the mucosal surface. An adult may be 4-8cm in length. The gravid segment contains characteristic eggs with a ‘rounded triangular’ shape, which are around 70μm long. The oncosphere is contained in the ‘pyriform apparatus’ (a chitinous ring with two projections).
Life-Cycle
Each worm has male and female segments, which reproduce via hermaphroditism. The male segment fertilises the female segment. The reproductive organs then deteriorate, leaving only a uterus full of eggs. This then detaches from the rest of the worm and migrates to the large intestine, where it ruptures releasing the eggs.
The eggs released are infective to oribatid mites, which act as the intermediate host. These mites live in the ground, feeding on plant debris. These are ubiquitous, but most numerous on permanent pasture in the summer months.
The mites ingest the egg. Cysticercoid larvae hatch, and live within the mite for its entire life. These cysticercoids become infective around two weeks after hatching.
The horse, which acts as the definitive host , ingests the mites in spring, when grazing the pasture.
They attach to the mucosa, and transform into adults in around 6- 10 weeks. The adults live in the ileum, at the ileocaecocolic valve, and within the caecum. The adults are capable of shedding large numbers of eggs.
The adults live for 4-6 months, and disease is most commonly seen between October and November.
The prepatent period is 6-10 weeks.
| Anoplocephala Learning Resources | |
|---|---|
 To reach the Vetstream content, please select |
Canis, Felis, Lapis or Equis |
 Test your knowledge using flashcard type questions |
Cestodes Flashcards |
 Search for recent publications via CAB Abstract (CABI log in required) |
Anoplocephala publications |
 |
This article has been peer reviewed but is awaiting expert review. If you would like to help with this, please see more information about expert reviewing. |
Error in widget FBRecommend: unable to write file /var/www/wikivet.net/extensions/Widgets/compiled_templates/wrt6741a35aae44a1_79686584 Error in widget google+: unable to write file /var/www/wikivet.net/extensions/Widgets/compiled_templates/wrt6741a35abba167_87919851 Error in widget TwitterTweet: unable to write file /var/www/wikivet.net/extensions/Widgets/compiled_templates/wrt6741a35ad437a2_42095745
|
| WikiVet® Introduction - Help WikiVet - Report a Problem |