Worm eggs Flashcards
What type of egg is this?
describe it
what species is it found in?
Strongyle egg
ovoid, thin shelled, contains morula, 80 micrometers long
ruminants - ostertagia, haemonchus, trichostrongylus, cooperia
Horse - t.axei, strongylus spp, cyathostomes
Pig - hyostrongylus, oesophagostomum
Cat and dog - uncinaria, ancylostoma
poultry - trichostrongylus, amidostomum
What type of egg is this?
describe it
what species is it found in?
Nematodirus (battus) egg
larger than strongyle, brownish with flat sides
ruminants
What type of egg is this?
describe it
what species is it found in?
Strongyloides
small and round, larvated
ruminants, horse
What type of egg is this?
describe it
what species is it found in?
Trichuris
brown, barrel, plug at each end
ruminants, pig, dog and cat
- if greenish in colour then Capillaria in cats and dogs
What type of egg is this?
describe it
what species is it found in?
Fasciola hepatica
large, ovoid, operculate, brown, contains yolk cells
ruminants, horse
What type of egg is this?
describe it
what species is it found in?
Dicrocoelium (dendriticum)
small, dark brown, thick shell, asymmetrical, eye spots
ruminants
What type of egg is this?
describe it
what species is it found in?
Moniezia / anoplocephala
squarish egg with pyriform apparatus
ruminants / horse
What is this?
pollen grain
can be found in faecal samples - small than strongyle
yellowish
What type of egg is this?
describe it
what species is it found in?
Dictyocaulus
like a larvated strongyle egg
horse
What type of egg is this?
describ it
what species is it found in?
oxyuris
operculate, asymmetrical ovoid
horse
What type of egg is this?
describe it
what species is it found in?
Parascaris / ascaris
thick shell with albuminous coat, brown
horse / pig
What type of egg is this?
describe it
What species is it found in?
Toxocara
thick shell, pitted, very dark brown
cat and dog
What type of egg is this?
describe it
what species is it found in?
Toxascaris
smooth ascarid, thick shell, clear
cat and dog
What type of egg is this?
describe it
what species is it found in?
Taeniid egg
small, round, thick shell with radial striations, sometimes has larval hooks
cat and dog
What type of egg is this?
describe it
what species is this found in?
dipylidium
look like clustered taeniid egs but inside a capsule
cat and dog
What type of egg is this?
describe it
what species is it found in?
syngamus
like a strongyle but with a cap
poultry
What type of egg is this?
describe it
what species is it found in?
Ascarid
thick shell, clear
poultry
What type of egg is this?
describe it
what species is it found in?
Capillaria
barrel shaped, plug at each end, greenish colour
in poultry, cat and dog
