BACKGROUND: Toxoplasma gondii is a significant cause of abortion in sheep and goats in the world. Toxoplasmo- sis causes reproduction disorders such as fetal resorption, early embryonic death, mummi fication, abortion, stillbirth, neonatal and fetal death in sheep. OBJECTIVES: The aim of this study was to detect T. gondii infection in ovine aborted fetuses in Khorasan Razavi province. Methods: From June 2009 to July 2013, 112 brain samples of aborted ovine fetuses were collected and examined to detect T.gondii DNA by nested- PCR. The association of the frequency of T.gondii infection with age and geographical location of aborted fetuses was also studied.RESULTS: The results showed that 18 (16.07%) brain samples of aborted fetuses were Toxoplasm positive in PCR reaction. The frequency of T.gondii in the age group ≥120 days was more than other age groups of infected aborted fetuses (p<0.05). All the infected fetuses belonged to the sheep flocks in the northern part of the province. CONCLUSIONS: The results showed the moderate T.gondii infection among ovine aborted fetuses in the northern part of Khorasan Razavi province.

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