Onchocerca - Cattle
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- 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).