6 documents found, page 1 of 1
Psychrotrophic bacteria in milk: How much do we really know?
Oliveira,Gislene B. de; Favarin,Luciana; Luchese,Rosa H.; McIntosh,DouglasThe occurrence of psychrotrophic bacteria in raw milk is studied worldwide due to the difficulties associated with controlling their growth during cold storage and the consequent negative effects upon fluid milk or dairy products. Among the psychrotrophic bacteria, the genus Pseudomonas (represented primarily by P. fluorescens) has been highlighted as the cause of numerous defects in dairy products. In light of...
Detection of Rickettsia bellii and Rickettsia amblyommii in Amblyomma longirost...
McIntosh,Douglas; Bezerra,Rodrigo Alves; Luz,Hermes Ribeiro; Faccini,João Luiz Horacio; Gaiotto,Fernanda Amato; Giné,Gastón Andrés FernandezStudies investigating rickettsial infections in ticks parasitizing wild animals in the Northeast region of Brazil have been confined to the detection of Rickettsia amblyommii in immature stages of Amblyomma longirostre collected from birds in the state of Bahia, and in immatures and females of Amblyomma auriculariumcollected from the striped hog-nosed skunk (Conepatus semistriatus) and armadillos (Euphractus se...
Co-infection by Tritrichomonas foetus and Pentatrichomonas hominis in asymptoma...
Santos,Caroline Spitz dos; Jesus,Vera Lúcia Teixeira de; McIntosh,Douglas; Berto,Bruno Pereira; Lopes,Carlos Wilson GomesAbstract: Tritrichomonas foetus, a parasite well known for its significance as a venereally transmitted pathogen in cattle, has been identified as a cause of chronic large bowel diarrhea in domestic cats in many countries of the world. In Brazil, several studies on the diagnosis of bovine trichomoniasis have been performed, but until now, no study was made regarding feline trichomoniasis. Thus, this is the firs...
Studies on coccidian oocysts (Apicomplexa: Eucoccidiorida)
Berto,Bruno Pereira; McIntosh,Douglas; Lopes,Carlos Wilson GomesThe oocysts of the coccidia are robust structures, frequently isolated from the feces or urine of their hosts, which provide resistance to mechanical damage and allow the parasites to survive and remain infective for prolonged periods. The diagnosis of coccidiosis, species description and systematics, are all dependent upon characterization of the oocyst. Therefore, this review aimed to the provide a critical o...
Paratuberculose em ruminantes no Brasil
Yamasaki,Elise M.; Brito,Marilene F.; Mota,Rinaldo A.; McIntosh,Douglas; Tokarnia,Carlos H.A paratuberculose ou doença de Johne é uma enterite granulomatosa causada por Mycobacterium avium subsp. paratuberculosis (Map) e comumente afeta ruminantes domésticos, no entanto, pode infectar várias espécies de mamíferos. Está presente nos cinco continentes e é considerada endêmica em algumas regiões pela Organização Internacional de Epizootias (OIE). Pertence à lista de enfermidades notificáveis, que compre...
Diagnóstico imuno-histopatológico da paratuberculose subclínica em bovinos no e...
Yamasaki,Elise M.; Brito,Marilene de Farias; McIntosh,Douglas; Galvão,Alexandre; Peixoto,Tiago C.; Tokarnia,Carlos HubingerO diagnóstico precoce e específico da paratuberculose ainda é um desafio. Isto pode estar associado à baixa sensibilidade dos testes laboratoriais e ou à variação da resposta imunológica frente à infecção por Mycobacterium avium subsp. paratuberculosis. Mundialmente, é uma enfermidade que causa importantes prejuízos econômicos, em especial, à bovinocultura leiteira, devido ao caráter crônico da infecção. No Bra...