Deck 5 Flashcards
methods of diagnosis in dogs
flotation method
gross examination (proglottids)
larvoscopy ( lungworms)
helminths in carnivores? flotation, microscopy, larvoscopy
Trematoda are
flukes
differences between Monogenean and digenea
monogenea
- direct LC
- ectoparasites of fish
- no oral suckers (posterior haptor)
- spindle to circular body
digenea
- indirect LC
- endoparasites of mammals
- 2 suckers
- leaf like body
what stage is not always present in the lc of digenean
redia
general LC of digenean trematodes
Monogenea is parasite of
fish
what is laruer´s canal
it connect the uterus to dorsal surface in trematodes
dicrocoelium dendriticum IH
1st - terrestrial snail (helices, zebrine)
2nd - ants
which stage invades the FH in tremtoda (inf stage)
metacercaria
what hatches from tremtoda eggs
miracidium
IH of Fasciola hepatica
snails of genus lymnea (Gaba truncate - water snail)
dicrocoelium dendriticum , stage inside ants
cystogony
- the ant enters the snail slime ball which transform to metacercariae in the ants. metacercariae goes to subesopahgeial ganglion and alter the the behavior of the ants which makes them climb into the top of grass
what is the host and site of eurytrema pancreaticum ( similar LC to dicrocoelium) ?
which trematode is not a hermaphrodite
schistosoma
describe in which host, is paragonimus spp
lung flukes of all animals
1IH melena snail (freshwater snails)
2IH - crayfish
what are the host of dactylogyrus
fish (freshwater fish)
differences between F.hepatica and D.dendriticum
describe location and host of schistosoma
location
- s. haematobium - venous plexus of bladder
- s.mansoni, s.japanicum - mesenteric veins (portal veins)
host
- s.haematobium - humans
- s. mansion - humans and rodents
- s. japonica - livestock, dogs and cats
IH - snail
