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

Ciência Rural

Nicolino, Rafael Romero²  Lopes, Luciano Bastos¹  Capanema, Renato Oliveira²  Haddad, João Paulo Amaral²  Pastrana, Misael Enrique Oviedo²  Oliveira, Camila Stefanie Fonseca de² 

[1] EMBRAPA Agrossilvipastoril, Sinop, BR;Universidade Federal de Minas Gerais, Belo Horizonte, BR

关键词: abortion risk;    Neospora caninum;    dairy herd;    economic modeling;    Brazil;   

DOI  :  10.1590/0103-8478cr20141428

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 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】

Unknown