Analysis of the clinical profile of macrorabdiosis cases: a retrospective study

Resumo

Macrorabdiosis is a disease caused by the bacillary fungus Macrorhabdus ornithogaster that colonizes the avian gastrointestinal tract. It has a tropism for the proventriculus, causing gastritis and, consequently, high mortality due to the occurrence of the so-called "wasting syndrome”. This study analyzed the case distribution of species affected by macrorabdiosis and the clinical presentation of Macrorhabdus ornithogaster infections. Based on the data, it was concluded that young Psittaciform birds are more frequently affected by macrorabdiosis, with Nymphicus hollandicus being the species of highest prevalence during the study period. It was also observed that wasting, in association with vomiting, is the most common clinical sign in young birds, while adult birds more frequently present with subclinical infections. These results highlight the importance of screening for M. ornithogaster contamination, as early diagnosis is critical for successful therapeutic outcomes in animals showing clinical signs.