Sanitary profile in mice and rat colonies in laboratory animal houses in Minas Gerais: I - Endo and ectoparasites Perfil sanitário de colônias de camundongos e ratos de biotérios de Minas Gerais: I - Endo e ectoparasitos

The sanitary conditions of 13 animal houses in nine public institutions in Minas Gerais, and the presence of endo and ectoparasites of mice and rats colonies kept in these facilities were evaluated. Data about barriers to prevent the transmission of diseases and a program of sanitary monitoring were obtained through a questionnaire and local visit. Parasitological methods were performed for diagnosing mite, lice, helminthes, and protozoa parasites in 344 mice and 111 rats. Data have shown that the majority of the animal houses had neither proper physical environment nor protection barriers to prevent the transmission of infections. Parasitological results have shown that only one animal house (7.7%) had parasite free animals, whereas the others have presented infected animals and the prevalences of parasites in the mice colonies were: Myobia musculi (23.1%); Myocoptes musculinus (38.5%); Radfordia affinis (15.4%); Syphacia obvelata (92.3%); Aspiculuris tetraptera (23.1%); Hymenolepis nana (15.4%); Spironucleus muris (46.2%); Giardia muris (46.2%); Tritrichomonas muris (53.8%); Trichomonas minuta (61.5%); Hexamastix muris (7.7%); and Entamoeba muris (84.6%). As for the rat colonies, the prevalences were: Poliplax spinulosa (8.1%); Syphacia muris (46.2%); Trichosomoides crassicauda (28.6%); Spironucleus muris (85.7%); Tritrichomonas muris (85.7%); Trichomonas minuta (85.7%); Hexamastix muris (14.3%) and Entamoeba muris (85.7%).<br>Avaliaram-se as condições sanitárias de 13 biotérios de nove instituições públicas do estado de Minas Gerais, bem como a presença de endo e ectoparasitos nos camundongos e ratos criados nesses biotérios. Os dados sobre barreiras contra infecções e sobre o programa de monitoramento sanitário dos animais foram obtidos por meio de um questionário e de visitas aos biotérios. Métodos parasitológicos foram utilizados para o diagnóstico de ácaros, piolhos, helmintos e protozoários em 344 camundongos e 111 ratos. A maioria dos biotérios não possuía espaços físicos adequados nem barreiras de proteção que pudessem impedir a transmissão de infecções. Os resultados parasitológicos mostraram que em apenas um biotério não foram encontrados animais parasitados. A prevalência de parasitos encontrados em camundongos nos outros biotérios foi: Myobia musculi (23,1%), Myocoptes musculinus (38,5%), Radfordia affinis (15,4%), Syphacia obvelata (92,3%), Aspiculuris tetraptera (23,1%), Hymenolepis nana (15,4%), Spironucleus muris (46,2%), Giardia muris (46,2%), Tritrichomonas muris (53,8%), Trichomonas minuta (61,5%), Hexamastix muris (7,7%) e Entamoeba muris (84,6%). E nas colônias de ratos foram encontrados: Poliplax spinulosa (8,1%), Syphacia muris (46,2%), Trichosomoides crassicauda (28,6%), Spironucleus muris (85,7%), Tritrichomonas muris (85,7%), Trichomonas minuta (85,7%), Hexamastix muris (14,3%) e Entamoeba muris (85,7%)

Pathological and parasitological findings in a wild red titi monkey, Callicebus cupreus (Pitheciidae, Platyrrhini)

International audienceAn adult female red titi monkey () was found in a moribund state below a sleeping site at the Estación Biológica Quebrada Blanco in Peruvian Amazonia. Before death, the animal showed frequent convulsions. Post-mortem examination revealed the presence of (Acanthocephala) in the small intestine. Major pathological findings concerned the digestive tract and the liver. Adult provoked multifocal subacute to chronic enteritis with formation of ulcers in the small and large intestine. The liver revealed a severe chronic-active granulomatous hepatitis. While the cause of death could not be unambiguously identified, the infestation with is likely to have played a key role in the pathogenesis of the chronic ulcerative enteritis and subsequent hepatitis; it possibly had a severe and long-term impact on the host's resource utilisation and defence against intruding pathogens and toxins of the digestive tract. The death of the animal is attributed to the chronic inflammatory processes in the digestive tract