Parasites Flashcards
trichomonas
only protozoa that is flagellated
reproductive signs - embryonic and foetal death, abortion, maceration, infertility
venereal spread
cattle main host
babesia
species -
cattle - divergens
horses - theileria (babesia equi)
sheep and goats - ovi
pigs - traumtmanni
dogs - canis, vogelli, rossi, gibsoni
cats - felis
tick borne - rhipicephalus
blood signs - progressive anemia, hemoglobinuria, jaundice fever
zoonotic
coccidia
GI - inflammation and haemorrhage
liver - involved in rabbits
immunosuppressive
cats, dogs, horses - usually isospora
sheep and cows - eimeria
most infections in summer
feco oral spread
cryptosporidium
cattle -
- adults - c. andersoni - abomasum
- calves - c. parvum
Lambs and goat - c. parvum
pigs - usually asymptomatic
GI signs - diarrhoea
feco oral spread
concurrent infectrions with rotavirus and coronavirus and other common - more severe diarrhoea
toxoplasma
toxoplasma gondii
cat feces spread
repro signs - abortion and still birth in sheep, goats, cervids and pigs
placental necrosis - strawberry cotyledons
foetal necrosis
neurologic and respiratory signs in immunocompromised patients (cats with FIV)
serology, post mortem
zoonotic
neospora caninum
mostly cows
abortion
dog feces
dog usually sub clinical
histopath on aborted tissue, PCR, serology
liver flukes
cattle and sheep - fasciola hepatica
cattle more chronic
sheep and goats more acute
winter and spring
damage liver as migrate through
anemia
submandibular oedema
decreased wight gain
decreased production
develop in snails and emerge to be eaten in grass
fecal detection - only patent infections
echinococcus granulosus
tapeworm
small intestine
dog definitive host
zootnoic
hyatid disease - cysts in liver/lungs/other organs - signs depending on where, can affect CNS
taenia
tapeworm
can cause blockage but usually don’t cause a problem
zoonotic - from eating them in meat
nematodirus
spring
last years calves/lambs leave it behind
diarrhoea, wasting
trichostrongylus
bottle jaw
diarrhoea
haemonchus
barbers pole worm
spring
anemia
hypoproteinemia
less diarrhoea - blood feeding
bottle jaw
ostertagia
grow in abomasum
around weaning time/summer
persistent diarrhoea
weight loss
protein losing enteropathy
anorexia
cyathostomins
red small worms
mass emergence - severe diarrhoea, weight loss
late winter and spring
worms seen in feces
parascaris equorum
horses
respiratory signs - “summer colds”
foals - poor condition, low energy, colic
intestinal obstruction
from previous years foals on the pasture
migration through liver
