Abstract
The aim of the present work was to evaluate the risk factors associated to Neospora caninum in dairy cows in the state of Pernambuco. Were collected 469 blood samples originated from 20 different farms. Indirect Immunofluorescence (IFI) was the technique employed to detect N. caninum antibodies in the samples. During sample collection, epidemiological inquiring was performed. From the samples tested, 31.7% (163/469) showed a positive reaction to N. caninum , distributed among 17 (85%) of the properties studied. It was observed a significant association with all aspects related to hygienic-sanitary management such as veterinary assistance ( p = 0.011); nutritional condition ( p = 0.031); presence of wetlands ( p < 0.001); manipulation of newborn calves ( p < 0.001) and the fate of the cows had aborted ( p = 0.004). Moreover, risk factors associated to reproductive disturb such as abortion history ( p = 0.042) and abortions period ( p = 0.014), were also observed. The findings described in this study characterize the first evidence of N. caninum infection in dairy cows in the state of Pernambuco, demonstrating the necessity of performing systematic diagnosis and monitoring of the cattle regarding their reproductive efficiency, in addition to the implementation of prophylactic and control measures. KEY WORDS : Cattle, epidemiologic aspects, indirect immunofluorescence, Neospora caninum .
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