Fasciola hepatica : Common liver fluke

Babesia

transmitted by boophilus ticks

anemia, high fever, splenomegaly

Prevention : tick control

Tx: Imidocarb

Capillaria : capillary worm

5-8 mm adult in SI

mostly non-path

eggs in fecal flotation

tx: fenbendazole

Cryptosporidium : Crypto

diarrhea in calves

6 um oocysts

Treatment supportive

Dictyocaulus : lungworm

adult (3-8 cm) in lungs

Diagnosis: larva in Baermann technique

tx : fenbendazole

Echinococcus granulosis : hydatid cyst

sheep intermediate hosts, zoonotic potential

cysts up to 10 cm in lung or liver

no tx in sheep

Eimeria : coccidia

bloody diarrhea and death in young; poor growth, diarrhea in adults

Oocysts in fecal flotation

Prevention : deccox, monensin

Treatment : sulfamethazine

Eimeria schizont

bloody diarrhea and death in young; poor growth, diarrhea in adults

Oocysts in fecal flotation

Prevention : deccox, monensin

Treatment : sulfamethazine

Fasciola hepatica : Common liver fluke

snail intermediate host, metacercaria infective

adult 3-4 cm in bile ducts

140 um egg in fecal sedimentation

treatment : albendazole

Fascioloides magna : Giant liver fluke

snail intermediate host, metacercaria infective

adult 4-6 cm in liver

150um egg in feces of deer, elk (definitive hosts)

fatal in sheep and goats (dead-end hosts)

albendazole best tx

Haemonchus : Barber's pole worm

10-30 mm adult in abomasum

80 um strongyle egg in feces

sheep problem: anemia in lambs

poor growth in adults

tx : fenbendazole

Moniezia : tapeworm

adult in small intestine

60 um eggs or segments in feces

tx : fenbendazole

Muellerius : Goat lungworm

Snail intermediate host

4 - 12 mm adult in lungs

may predispose to pnuemonia

Baermann technique for larvae

Tx: fenbendazole

Nematodirus : thick necked intestinal worm

10-25 mm adult in SI

200 um egg in feces

acute diarrhea in young animals

tx : fenbendazole

Oesophagostomum : Nodular worm

adult in large intestine

L4 forms nodules in intestinal wall

80 um eggs in feces

tx : fenbendazole

Protostrongylus : Bighorn sheep lungworm

snail intermediate host

10-20 mm worm in lungs

predisposes to pneumonia

baermann technique for larvae

Tx : fenbendazole

Sarcocystis : sarcocysts in muscle tissue

dogs, cats, humans definitive hosts

Strongyle eggs:

haemonchus: sheep abo, anemia, FBZ

ostertagia: brown stomach worm, cow abo, FBZ

trichostrongylus: black scour worm, sheep abo, FBZ

cooperia: bankrupt worm, SI cows, FBZ

chabertia: Large mouth bowel worm, LI, FBZ

Taenia

cysticerci in peritoneum, omentum, liver, muscles

no treatment

Taenia saginata: Beef cysticercosis

cysticercus in cattle

tapeworm in humans

treat humans with praziquantel

Trichuris: whipworm

adult in cecum, LI

75 um egg in feces

Tx: FBZ

Tritrichomonas : Trich

Flagellaged protozoan

VD, early abortion, pyometra

diag: preputial wash and culture

tx: ipronidazole

Toxoplasma schizont

Pigs, ruminants, birds intermediate hosts

Cats only definitive host

Schizonts in tissues

Cattle resistant, sheep and goats susceptible

abortions in sheep