a prospective study of the effect of neospora caninum and bvdv infections on bovine abortions in a dairy herd in arequipa, peru.we used a prospective seroepidemiological approach to investigate endemic abortion in a dairy herd in arequipa, peru, and its association with neospora caninum and bovine viral-diarrhoea virus (bvdv) infections. between january 2002 and march 2004, 1094 pregnancies were confirmed in 538 cows. of these, 137 pregnancies (13%) in 121 cows ended in abortion. the serological status to n. caninum was assessed using a single serological screening, whereas bvdv status was assessed at the herd level thro ...200616597470
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