Raillietia caprae (Acari: Raillietidae) and Psoroptes ovis (Acari: Psoroptidae) in the ears of goats in the state of Rio de Janeiro, Southeast Brazil

João Luiz H Faccini,Vinicius R Ribeiro

doi:10.1590/s1984-29612008000100014

João Luiz H Faccini, Vinicius R Ribeiro

Open Access

https://doi.org/10.1590/s1984-29612008000100014

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Abstract

Ear canals of 145 domestic goats including the breeds Saanen, Toggenburg, Anglobian, Alpine, Moxoto (native) and crossbred goats from 10 smallholder farms were examined by flushing for the presence of ear mites. Prevalence of Raillietia caprae Quintero, Bassols and Acevedo, 1980 was much more higher than Psoroptes ovis (Hering, 1838) in the studied area, respectively 62% (90/145) and 4% (6/145). The youngest animal parasitized was eight months old and the oldest was 10 years old. Subclinical otitis is a common feature of infestation by both species but increase of wax and the presence of pus were detected in the flushed material in approximately 10% of the goats examined.

Highlights

Os condutos auditivos de 145 caprinos das raças Saanen, Toggenburg, Anglobian, Alpine, Moxoto e mestiços provenientes de 10 pequenos criadores foram examinados pela técnica de lavagem para diagnosticar a infestação por ácaros
The ear mite Raillietia caprae Quintero, Bassols and Acevedo, 1980 has been reported parasitizing goats in Mexico (QUINTERO et al, 1980), Australia (COOK, 1981), Brazil (FONSECA et al, 1983) and USA (FRIEL;GREINER, 1988) whereas goat psoroptic otocariasis by Psoroptes ovis (Hering, 1838) sensu Wall and Kolb (2006) has been reported worldwide (BATES, 1999). P. ovis seems to be more pathogenic than R. caprae, the impact of parasitism of both species on the host health had not been properly assessed
Reports from Cottew and Yeats (1982) in Australia, DaMassa (1983) in USA and Ribeiro et al (1995, 1996) in Brazil suggest that R. caprae and, probably, to a certain extent P. ovis (COTTEW; YEATS, 1982) may be involved in the transmission of mycoplasmas to goats

Summary

Introduction

Os condutos auditivos de 145 caprinos das raças Saanen, Toggenburg, Anglobian, Alpine, Moxoto (native) e mestiços provenientes de 10 pequenos criadores foram examinados pela técnica de lavagem para diagnosticar a infestação por ácaros. PALAVRAS-CHAVE: Raillietia caprae, Psoroptes ovis, Acari, caprino, Sudeste do Brazil

Results

Conclusion