Flashcards in Ticks and lice of cattle Deck (23)
What 2 ticks are found in cattle?
Rhipicephalus spp (tropical)
Abyomma spp (tropical)
What is the main vector of bovine babesiosis?
What habitat do Ixodes riicius require?
Wet habitat, under grazed pastures
How can Ixodes ricinus be distinguished?
Groove in front of anus
How many hosts do Ixodes ricinus require?
What pathogen does Rhipicephalus transmit?
Bovine babesiosis - warmer countries
What is Ambyomma tick a vector of? Describe Ambyomma morphology
Heart water in cattle (Ehrlichia rumination)
Hypsotome, camoflauge type pattern on dorsal shield (scutum) and legs
What are the symptoms of Bovine babesiosis?
What pathogens cause Bovine babesiosis in cattle?
Babesia divergens (main one)
Describe the pathogenesis of Babesiosis
Feeding tick carries Babesia divergent
Develops in salivary gland
Causes progressive haemolytic anaemia and haemoglobinuria
How can cattle ticks be controlled?
Organophosphates, SPs, amitraz, prophylaxis
Regular dipping/spraying with acaricides
Which cattle tick is resistant to widespread acaricides?
What are the 2 mange mites in cattle?
Is psoroptic or chorioptic mange more severe? Which is more common?
Chrioptes more common, less severe
Psoroptes less common, more severe
Describe the morphology of chorioptes bovis
Short unjointed pedicles ending a cup
What does Chorioptic mange cause?
What treatment is usually given for Chorioptes bovis?
What does Psoroptes ovis cause in sheep? Does it affect cattle?
Yes if housed in same area
What does Psoroptes ovis feed on?
What breed of cow has a high prevalence of Psoroptic mange?
Descibe the morphology of Psoroptes ovis
Long pedicles ending in a2 part trumpet shape
What are the symptoms of Psoroptic mange?