| neospora caninum: evaluation of vertical transmission in slaughtered beef cows (bos indicus). | neospora caninum is a protozoan parasite that causes the most important reproductive problems in cattle worldwide. the objective of this study was to evaluate the possibility of vertical transmission of n. caninum in zebus breed beef cows (bos indicus) submitted for slaughter at an abattoir in the northern region of the state of paraná, southern brazil. one hundred and fifty-nine cows were evaluated: 83 pregnant (in different stages of gestation) and 76 non-pregnant. serum determination of n. ca ... | 2010 | 21063729 |