Horse Protozoans

Eimeria leuckarti is a

Protozoan of the GI Tract (small intestine)

Common name for Eimeria leuckarti

Coccidia

Definitive host for Eimeria leuckarti

Horse ; has it and gets over it, usually immune to getting again

Lifecycle for Eimeria leuckarti

Direct (small intestine)

Dx for Eimeria leuckarti

Oocysts in feces

Prepatent period and Infective stage for Eimeria leuckarti

30 days ; Sporulated oocysts

Tx for Eimeria leuckarti

Sulfa drugs

Signs in host for Eimeria leuckarti

Asymptomatic, maybe inflammation of intestinal cells

Babesia caballi  OR Theileria equi are

Circulatory horse protozoans

Common name for Babesia caballi  OR Theileria equi

Equine piroplasms (reportable to gov)

Definitive Host for Babesia caballi  OR Theileria equi

Horse

Lifecycle for Babesia caballi  OR Theileria equi

Indirect through tick (mares can pass in utero)

Dx in Babesia caballi  OR Theileria equi

Blood smear- basophilic pear shaped trophozoites

Prepatent period for Babesia caballi  OR Theileria equi

10-30 days

Infective stage for Babesia caballi  OR Theileria equi

Trophozoite on blood in tick

Tx for Babesia caballi  OR Theileria equi

Imidocarb Dipropionate

Signs in Host for Babesia caballi  OR Theileria equi

Fever, Depression, icteric, anorexia

Babesia caballi  OR Theileria equi

Sarcocystis neurona is a

Protozoan in the nervous system

Common name for Sarcocystis neurona

Sarcocystis

Definitive Host for Sarcocystis neurona

Possum

Horses are considered a ____ host for Sarcocystis neurona

aberrant , dont spread

Dx for Sarcocystis neurona

Blood test

Tx for Sarcocystis neurona

Ponzeril, diclazuil

Infective stage for Sarcocystis neurona

Sporulated oocysts

Signs in Host for Sarcocystis neurona

EPM- equine protozoal myelitis, ataxia, weakness, muscle loss, if caught 60-70% chance of recovery, slow or quick onset