Seroprevalencia de babesia equi en tres diferentes sistemas de crianza de equinos: Rio de Janeiro, Brasil / Seroprevalence of babesia equi in 3 breding systems of equines: Rio de Janeiro, Brazil

Blood samples were collected by jugular venipuncture and periferic blood smears horses maintained in tree breed system: confined, semi confined and extensive. The blood of this animals was analyzed for immunofluorescent antibody test (IFAT) for B. equi, and the prevalence obtained were the 89.58 percent, 87.89 percent and 45.24 percent, in extensive system, on semi confined system and confined system, respectively. For the direct exam in blood smear, the values was 16.7 percent, 16.13 percent and 4.78 percent, respectively in extensive system, on semi confined system and confined system