Estimating the abortion risk difference in Neospora caninum seropositive dairy cattle in Brazil

Ciência Rural

Rafael Romero Nicolino¹  Renato Oliveira Capanema¹  Camila Stefanie Fonseca De Oliveira¹  Misael Enrique Oviedo Pastrana¹  Luciano Bastos Lopes¹  João Paulo Amaral Haddad¹ 

关键词: abortion risk;    Neospora caninum;    dairy herd;    economic modeling;    Brazil;    risco de aborto;    Neospora caninum;    bovinocultura de leite;    modelagem econômica;    Brasil;   

DOI  :  10.1590/0103-8478cr20141428

来源: SciELO

【 摘 要 】

Neosporosis in cattle herds is associated with large economic losses, with abortion being the only clinical sign perceptible to the producer. Losses are estimated at over one billion dollars worldwide. This study aimed to estimate the abortion risk difference in seropositive animals using specific data for dairy herds in Brazil. Differences in the risk of abortion between seropositive and seronegative animals were calculated through a meta-analysis of previous data from several Brazilian states, and an increase of 10.04% (0.091 to 0.118) in the specific risk was identified. This finding indicates that more than 474,000 abortions caused by neosporosis may be occurring only in dairy cattle herds in Brazil, causing a major economic loss in the milk production chain. The use of this specific measure for Brazilian herds opens the possibility of developing cost-benefit analysis for neosporosis in Brazil using data that are more reliable

【 授权许可】

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