Identificação dos coleópteros (insecta: Coleoptera) das regiões de Palmas (município de Bagé) e Santa Barbinha (município de Caçapava do Sul, RS).

Classe Insecta; Generalidades; Ordem Coleoptera; Características gerais; Material e métodos; Descrição das áreas; Técnica de amostragem; Resultados e discussão; Análise das famílias da ordem Coleoptera a partir de níveis tráfico; Raridade de famílias e ou espécies; Descrição dos táxons coletados, famílias Anobiidae, Anthicidae, Aphodiidae, Buprestidae, Cantharidae, Carabidae, Cerambycidae, Chelonariidae, Chrysomelidae, Cleridae, Coccinelidae, Corylophidae, Curculionidae, Dryopidae, Dynastidae, Elateridae, Endomychidae, Erotylidae, Geotrupidae, Histeridae, Hybosoridae, Hydrophilidae, Lampyridae, Lathridiidae, Leiodidae, Limnichidae, Meloidae, Melolonthidae, Monotomidae, Mordellidae, Nitidulidae, Phalacridae, Ptillidae, Rutelidae, Scarabaeidae, Scydmaenidae, Silvanidae, Staphylinidae, Tenebrionidae, Trogidae.bitstream/item/63866/1/DT-70.pd

The gut microbiota of farmed and wild brook trout (Salvelinus fontinalis): evaluation of feed-related differences using 16S rRNA gene metabarcoding

The gut microbiota has become a topic of increasing importance in various fields, including aquaculture. Several fish species have been the subject of investigations concerning the intestinal microbiota, comparing different variables including the intestine portions, the environment and diet. In this study, the microbiota of farmed and wild brook trout (Salvelinus fontinalis) was analysed, considering separately wall and content of the medial portion of the intestine. A total of 66 fish (age class 2+) were sampled, of which 46 wild and 20 farmed brook trout, along two different years. Microbiota data were obtained using a 16S metabarcoding approach by analysing the V3-V4 hypervariable regions of the 16S rRNA. Data showed that the core microbiota of these species is represented by Proteobacteria (Alpha- and Gammaproteobacteria), Actinobacteria, Firmicutes (Bacilli and Clostridia) and, only for farmed animals, Fusobacteria. The latter taxon is likely related to the fishmeal-based diet administered to farmed brook trout. Indeed, alpha and beta diversity analysis showed differences between wild and farmed fish. Finally, statistically significant differences in the microbiota composition were observed between intestinal wall and content in wild fish, while no differences were detected in reared animals

Ecologização da pecuária familiar na Serra do Sudeste.

Histórico; Local de execução e perfil da população; Identificação dos elementos e interações; Modelo sistêmico / Sistemas de produção.bitstream/item/63681/1/DT98.pd

Morganella morganii septicemia and concurrent renal crassicaudiasis in a Cuvier’s beaked whale (Ziphius cavirostris) stranded in Italy

Information regarding bacterial diseases in Cuvier's beaked whale (CBW, Ziphius cavirostris) is scattered and mostly incomplete. This report describes a case of septicemia by Morganella morganii in a juvenile male CBW with concurrent renal crassicaudiasis. The animal stranded along the Ligurian coastline (Italy) and underwent a systematic post-mortem examination to determine the cause of death. Histopathology showed lesions consistent with a septicemic infection, severe meningoencephalitis, and renal crassicaudiasis. An M. morganii alpha-hemolytic strain was isolated in pure culture from liver, lung, prescapular lymph node, spleen, hepatic and renal abscesses, and central nervous system (CNS). The antimicrobial susceptibility profile of the strain was evaluated with the minimum inhibitory concentrations (MICs) method and reduced susceptibility to Trimethoprim-Sulfamethoxazole is reported. Crassicauda sp. nematodes were retrieved from both kidneys. No other pathogens were detected by immunohistochemistry, serology, or biomolecular analyses. Toxicological investigations detected high concentrations of immunosuppressant pollutants in the blubber. The chronic parasitic infestation and the toxic effects of xenobiotics likely compromised the animal's health, predisposing it to an opportunistic bacterial infection. To our knowledge, this is the first description of M. morganii septicemia with CNS involvement in a wild cetacean

Effectiveness of the phytic acid in the preparation of the post space: a confocal laser scanning microscope analysis

Validate the efficacy of phytic acid (IP6) in the cleansing of the dentinal tubules during the preparation of the post space

Evaluation of full fiber post and hollow fiber- reinforced post in two different root canal morphologies: a confocal laser scanning microscope analysis

Post-endodontic restoration can be obtained with adhesively cemented fiber post. Currently, hollow and full fiber posts are used without considering a protocol adapted to root canal morphology. The aim of the study is to investigate the most appropriate type of fiber post to be cemented into root canals with circular or oval anatomy