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Abstract Equine hosts suffer from neurological disease, congenital infection, and reproductive problems associated with Neospora spp. infection. We conducted a cross sectional study using sera from 631 equids (324 horses, 218 donkeys and 89 mules) from the southern region of Punjab province, Pakistan to determine the prevalence of antibodies against Neospora spp. in this diverse group of equines. Fisk factors associated with seropositivity were evaluated statistically based on equine type, breed, age, husbandry, breeding methods, and reproductive history. Prevalence of antibodies to Neospora spp. was detected using a commercially available competitive ELISA kit. We detected IgG antibodies to Neospora spp. in 23.3% of the equids with prevalence by host being 16.0% in horses, 32.6% in donkeys and 26.9% in 89 mules. Statistically significant (P < 0.05) differences in prevalence were observed among these hosts. Prevalence ranged in breeds of horses from 3.7% in the Morna breed, 12.4% in breeding stock, 26.8% in draughting stock, to 31.4% in unknown breeds. No significant (P > 0.05) difference in prevalence was noted among age groups. Prevalence was significantly (P < 0.05) higher in female equines with a history of abortion than those with no history of abortion. This is the first report documenting Neospora spp. in equines from Pakistan and it provides evidence that Neospora spp. is associated with abortions in female equines in Pakistan. [ABSTRACT FROM AUTHOR]