infectious challenges Flashcards
1
Q
what is a parasite
A
an organism that uses a hosts nutrients without giving anything back
2
Q
what is an endo-parasite
A
lives within the body of the organism
3
Q
what is an ecto-parasite
A
lives outside the body of the host
4
Q
are tapeworms endo or ecto parasites
A
endoparasites
5
Q
how are tapeworms diagnosed in horses+ why is it unreliable
A
- faecal egg detection = not finding eggs doesn’t mean they aren’t present
- sedimentation and floatation method
6
Q
describe the features of a tapeworm
A
- head (scolex) contains 4 suckers + hooks
- flattened tail (strobila) segmented
7
Q
what is the life cycle of a tapeworm in horses
A
- horse ingests cysticercoid infected mite
- cysticercoid develops into tapeworm in intestine
- tapeworm eggs laid in horse faeces
- eggs eaten by mite which crawls onto vegetation
8
Q
what damage can tapeworms cause
A
rectal prolapse
9
Q
what can be used to remove 70% of tapeworms
A
- a dose of pyrantel pamoate
- however a double dose may harm pregnant / breeding animals
10
Q
A
