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O conhecimento da microbiota que compõe as diferentes áreas do organismo tem importância reconhecida para a compreensão de doenças infecciosas que podem acometer os avestruzes, embora se disponha de dados limitados acerca deste assunto na literatura. Foi objetivo deste estudo determinar as espécies de microrganismos (bactérias aeróbias e fungos) que compõem a microbiota normal de avestruzes. Para tanto, foram coletadas amostras de cloaca (N=50) e orofaringe (N=50) de avestruzes hígidos de um criadouro. Das amostras de cloaca, foram isolados Escherichia coli (76% das amostras positivas), Bacillus spp. (60%), Streptococcus spp. (18%), Staphylococcus coagulase-negativo (16%), Pseudomonas aeruginosa (8%), Rhodotorula spp. (8%), dentre outros microrganismos isolados em cultura pura ou em associação com outras bactérias e/ou fungos. Das amostras de orofaringe, foram isolados E. coli (74% das amostras positivas), Candida albicans (44%), Bacillus spp. (38%), Staphylococcus coagulase-negativo (32%), Klebsiella pneumoniae (32%), Rhodotorula spp. (8%), Criptococcus spp. (4%), dentre outros microrganismos isolados em cultura pura ou em associação com outras bactérias e/ou fungos. Verificou-se predominância de bactérias Gram negativas em relação às Gram positivas, nas microbiotas da cloaca e orofaringe. Verificou-se freqüência de ocorrência semelhante entre bactérias Gram negativas nas microbiotas da cloaca e orofaringe, bem como de bactérias Gram positivas nestes mesmos sítios. Observou-se maior ocorrência de leveduras em amostras de orofaringe quando comparadas com as de cloaca. The knowledge of the microbiota present in different parts of the organism is important for the understanding of the infectious diseases of ostriches, although limited literature is available on this matter. The objective of this study was to determine the species of microorganisms (aerobic bacteria and fungi) that form the normal microbiota of ostriches. Samples from cloaca (N=50) and oropharynx (N=50) were collected from healthy ostriches of a breeder. In samples from cloaca, the following microorganisms were isolated: Escherichia coli (76% of the positive samples), Bacillus spp. (60%), Streptococcus spp. (18%), coagulase-negative Staphylococcus (16%), Pseudomonas aeruginosa (8%), Rhodotorula spp. (8%), among others, considering that these microorganisms were isolated in pure culture or associated with other bacteria and/or fungi. In samples collected from oropharynx, the following microorganisms were isolated: E. coli (74% of the positive samples), Candida albicans (44%), Bacillus spp. (38%), coagulase-negative Staphylococcus (32%), Klebsiella pneumoniae (32%), Rhodotorula spp. (8%), Criptococcus spp. (4%), among others, considering that these microorganisms were isolated in pure culture or associated with other bacteria and/or fungi. A predominance of Gram negative bacteria in relation to Gram positive ones was observed in the microbiotas of cloaca and oropharynx. A similar frequence of occurrence between Gram negative bacteria in the microbiotas of cloaca and oropharynx, as well as Gram positive bacteria in these same areas, was verified. A higher occurrence of yeasts was observed in samples of oropharynx when compared to samples from cloaca

Determinação da microbiota presente na cloaca e orofaringe de avestruzes (Struthio camelus) clinicamente sadios