Ruminant ectoparasites Flashcards
Australian sheep blowfy scientific name?
Lucilia cuprina
National cost to sheep industry of flystrike?
~280 million (2006)
Lifecycle of Lucilia cuprina…
slide 6…
List some factors that will increase the risk of blowfly strike in sheep…
moisture on sheep skin - scouring dags breech wrinkle - excessive wool around susceptible areas warm & humid conditions
Flystrike treatment…
Ivermectin - wool WHP 6week & 7d ESI
Dicyclanil (spray on) wool WHP 3 months & 120d ESI
Flystrike prevention…
mulesing - only proven effective treatment
clips - crap
Sheep body lice scientific name?
Bovicola (Damalinia) ovis
Sheep body louse (Bovicola ovis) lifecycle…draw
slide 46
Bovicola ovis prefer what conditions…
high temps - 37 - 45 degrees
fleece
no rain
Long wool treatment does what? eg.?
only control eg. ivermectin (hand jet)
Short wool treatment does what? eg.?
ERADICATE eg. diazinon
How would you treat sheep infected with sheep biting louse? drug? treatment? application? time?
diazinon (eureka gold spray on) -> use within 24hrs of shearing by spraying from head to down middle of the back to the tail. Takes ~6 weeks to kill lice on treated sheep. Not suitable for lambing ewes.
Outline the steps of eradication…
- effective chemical treatment of all sheep after good - shearing (short wool).
- Biosecurity to prevent re- introduction.
Cattle tick…scientific name…? clinical signs? pathology?
Boophilus microplus
irritation, reduced growth, anaemia
‘tick fever’ - Babesia bovis
Cattle tick…treatment?
ivermectin
