large animal parasites

what parasite is this?

strongyloides westeri

(broad ellipse, slightly flattened poles)

(shell thin and colorless)

(embryonated< L1 larva present)

what parasie is this?

whats the scientific name?

fly larva (cattle warble)

hypoderma

(hypoderma fly lays its eggs on the hair in horses)

(eggs hatch & larva migrate into the skin then to the spinal region, the come back and make a breathing hole near the skin)

(after molting, the larva emerge from the hole, fall to the ground and pupate, then flies emerge)

what parasite is this?

whats the scientific name?

bot fly larva

gasterophilus

(found in the stomach of horses)

what parasite is this?

whats the scientific name?

equine roundworm

paracaris equorum

what parasite is this?

pinworm

(cause anal pruritis when the adults crawl out of the horses rectum to lay their eggs)

(fecal float may not dx the infection since the eggs are deposited outside of the rectum

what parasite is this?

what kind of parasite is this?

Nematodirus egg

Ruminant nematode

(ellipse shaped, poles sharply curved)

(2-8 blastomeres surrounded by wide fluid-filled cavity)

what parasite is this

whats the scientific name

pig coccidian

isospora suis

what parasite is this

whats the scientific name

porcine roundworm (the large roundworm of pigs)

Ascaris suum worms and egg

what parasite is this?

whats the scientific name?

sucking lice

hematopinus louse

(has piercing mouth parts adapted to sucking blood and tissue)