Parasitism Scientific Posters

Correlation between anti-Babesia bovis, Babesia bigeminaand Anaplasma maginale antibodies from calved cows and the serum immunoglobulins in calves obtained via colostrum.

Luiza Gonçalves Dias, Daniel de Castro Rodrigues, Douglas Alves Pereira, Andrey Reis de Carvalho, Rafael de Freitas Dias, Natália de Melo Nasser Fava, Álvaro da Costa Fagundes, Juliana da Silva Miranda, Márcia Cristina Cury

Specific antibodies for Babesia bigemina and Babesia bovis were detected in a few cows whereas no antibodies against any of the parasites were detected in the calves, suggesting that there was no passive transfer of antibodies to the neonates from their mothers via colostrum. The type of management on the property may have influenced this result due to the reduced contact of animals with the vectors, as well as the low intake of colostrum.

Rhipicephalus microplus resistance to acaricides in Brazil

Z. Dos Santos Freire, J. Tutija, G. Reckziegel, T. Strydom, D. Rodrigues, F. Borges

The results demonstrated that there is resistance to acaricides of several chemical classes available on the Brazilian market for the control of Rhipicephalus microplus.