Difference between revisions of "Onchocerca - Cattle"

Revision as of 21:09, 21 April 2010

Filarial nematode (white thread-like, <6cm long)
Found in ligamentum nuchae and gastrosplenic ligament (UK), skin and muscle (overseas)
Indirect life cycle (intermediate hosts: black fly, ‘’Simulium’’ species and biting midge, ‘’Culicoides’’ species)
Little or no significance (UK); subcutaneous and intramuscular nodules may cause economic loss due to carcass trimming (overseas).

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-{{OpenPagesTop}}
+*Filarial nematode (white thread-like, <6cm long)
-{{Taxobox
+*Found in ligamentum nuchae and gastrosplenic ligament (UK), skin and muscle (overseas)
-|name               =''Oncocerca spp.
+*Indirect life cycle (intermediate hosts: black fly, ‘’Simulium’’ species and biting midge, ‘’Culicoides’’ species)
-|kingdom            =
+*Little or no significance (UK); subcutaneous and intramuscular nodules may cause economic loss due to carcass trimming (overseas).[[Category:Filarioidea]]
-|phylum             =
-|class              = [[Nematodes|Nematoda]]
-|sub-class          =
-|order              =
-|super-family       = [[Filarioidea]]
-|family             =
-|sub-family         =
-|genus              =
-|species            =
-}}
-==''Onchocerca gutturosa''==
-Also known as: '''''Onchocera lienalis — Ligamentary onchocercosis
-===Hosts===
-'''Intermediate hosts''': Blackflies
-'''Definitive hosts''': Cattle
-===Identification===
-''O. gutturosa'' are thin, white worms.  The females are capable of growing up to 60cm in length. The males are considerably smaller at around 4cm in length.
-===Life Cycle===
-Microfilariae are found on the surface of the host. [[Simuliidae|Blackflies]] feed and ingest the microfilariae. These develop and mature into L3 larvae. The blackflies then feed on another host, which becomes infected.
-==Onchocerca gibsoni==
-===Hosts===
-'''Intermediate hosts''':  Midges ([[Ceratopogonidae|''Culocoides'']])
-'''Definitive hosts''':  Cattle
-===Identification===
-''O. gutturosa'' are thin, white worms ranging from 2-20cm in length. The microfilariae are around 260μm in length.
-===Life Cycle===
-As for ''Onchocera gutturosa''.
-{{Learning
-|flashcards = [[Cattle_Nematode_Flashcards|Cattle Nematode Flashcards]]
-|literature search =[http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=Onchocerca&occuring1=title&rowId=2&options2=AND&q2=cattle&occuring2=od&rowId=3&options3=AND&q3=&occuring3=freetext&x=46&y=9&publishedstart=yyyy&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all ''Onchocerca'' spp. in cattle publications]
-}}
-{{OpenPages}}
-[[Category:Filarioidea]]

Difference between revisions of "Onchocerca - Cattle"

Revision as of 21:09, 21 April 2010

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