Parasites & Ectoparasites L02 Flashcards
What are the two ‘class’ of ectoparasites?
Class Insecta, Class Arachnida.
Are ectoparasites microscopic, or macroscopic?
Macroscopic (visible with the eye).
Describe Insecta Parasites…
- 3 pairs of legs
- 1 pair of antennae
Describe Arachnida Parasites…
- 4 pairs of legs
- 2 body segments
- no antennae
Explain the term ‘Metamorphis’…
This is the complete transformation between larva and adult form..
egg - larva - pupa - adult
State 3 facts regarding the flea life cycle…
- live 3 weeks to 2 years (depending on environment).
- 90% of the cycle = off the host
- Not host specific
- Adult fleas jump onto the host to obtain a blood meal.
- intermediate host for the tapeworm.
List 4 problems that can occur within an animal where parasites are present.
- allergic reactions
- anaemia
- alopecia
- mild pruritus
State 2 ways of which fleas can be prevented.
- regular cleaning of environment
- treat animal regularly.
- avoid places where fleas may be present.
‘Spot On’ treatments are 1 way of treating fleas.. suggest 3 more treatments.
- good hygiene practises
- environmental control
- insecticidal topical preparations
- shampoo treatments
How can fleas be diagnosed?
- visual observation
- coat brushing
List 3 common lice..
- cat biting louse
- dog biting louse
- dog sucking louse
State 4 key points regarding lice…
- approx. 2mm long (macroscopic)
- immature lice = identical to adult lice
- entire life cycle is spent on the host
- host specific (don’t have intermediate hosts).
What are some common problems associated with lice?
- lice feed on blood, can cause anaemia
- intense irritations
- poor hygiene can encourage spread
Flea collars can be effective in preventing and treating lice in animals… suggest 3 more.
- flea sprays
- flea shampoos
- topical insecticides
How can we prevent lice?
- avoid contact with infected animals
- ensure high levels of hygiene
- regular health checks
