| re-emergence of chorioptes bovis (acari: psoroptidae) in cattle in the state of rio grande do sul, brazil. | here we describe an outbreak of chorioptic mange in cattle, 56 years after its first identification in brazil. between the months of june and july 2011, dermatitis characterized by alopecia and crusted and thickened skin at the insertion of the tail and in the ischiorectal fossa was recognized in 40 (35.7%) out of 112 holstein cows on a farm in the northeastern mesoregion of the state of rio grande do sul, brazil. after diagnosing mange caused by chorioptes bovis, the cows were weighed and treat ... | 2017 | 25517535 |