Impact on heifers/cows and their calves
Russ Daly, DVM
Neospora caninum is a protozoal germ that has the potential to affect reproduction in beef and dairy herds. The protozoa has an interesting lifecycle that involves canine species (dogs, coyotes, foxes, etc.). When Neospora-affected cows give birth, the cleanings and fetal tissues contain Neospora cysts. If these tissues are eaten by a canine, Neospora oocysts are shed in their droppings. When these infected droppings contaminate cattle feed, the cycle is complete, infecting cattle that eat the feed.