Avaliação de uma técnica in vivo para medir a infestação por ácaros do gênero Raillietia Trouessart (Acari) em bovinos

In vivo flushing of the ear canals with 50 to 100 ml collected all larvae in 100% of infested cattle. All adult mites were collected from 22 ou 27 parasitized ears (81.5%). Both stages adult and larva were collected from 18 out 22 parasitized ears (82%). The technique is adequate as a measure of prevalence, incidence, density/intensity of infestation as well as in vivo diagnosis. No damage to the host ear has been noticed.