RESUMO
OBJECTIVE: To determine whether Salmonella spp could be isolated from the environment of free stall dairies in Wisconsin without any history of clinical salmonellosis and determine the serotype and antimicrobial susceptibility of any Salmonella isolates recovered from the environment. DESIGN: Cross-sectional study. STUDY POPULATION: 20 free stall dairies with no history of clinical salmonellosis. PROCEDURES: Dairy owners completed a questionnaire regarding management and production practices. Multiple swab samples were obtained from throughout the free stall facilities and submitted for bacterial culture for Salmonella spp. Odds ratios were calculated to compare herd-level risk factors between dairies from which Salmonella organisms were isolated and herds from which Salmonella organisms were not isolated. RESULTS: Salmonella organisms were isolated from 9 of the 20 (45%) dairies. Salmonella serotype Meleagridis was isolated from 4 dairies, S. Meleagridis and S. Kentucky were isolated from 2 dairies, S. Meleagridis and S. Cyprus were isolated from 1 dairy, S. Cerro was isolated from 1 dairy, and S. Corvallis was isolated from 1 dairy. All isolates were susceptible to all antimicrobial agents tested. None of the potential risk factors analyzed demonstrated a significant association with an increased likelihood of isolating Salmonella spp. CONCLUSIONS AND CLINICAL RELEVANCE: Environmental Salmonella contamination was demonstrated on free stall dairies with no history of clinical salmonellosis.
Assuntos
Antibacterianos/farmacologia , Doenças dos Bovinos/microbiologia , Microbiologia Ambiental , Salmonelose Animal/microbiologia , Salmonella/isolamento & purificação , Animais , Bovinos , Doenças dos Bovinos/tratamento farmacológico , Doenças dos Bovinos/epidemiologia , Contagem de Colônia Microbiana/veterinária , Estudos Transversais , Indústria de Laticínios/métodos , Testes de Sensibilidade Microbiana/veterinária , Razão de Chances , Fatores de Risco , Salmonella/classificação , Salmonella/efeitos dos fármacos , Salmonelose Animal/tratamento farmacológico , Salmonelose Animal/epidemiologia , Sorotipagem/veterinária , Inquéritos e Questionários , WisconsinRESUMO
Pneumothorax in cattle can develop subsequent to acute or chronic pulmonary disease, and if unresolved may lead to respiratory distress and death due to hypoxia and compression and collapse of cardiac and thoracic great vessels. Therapeutic evacuation of free air within the pleural space can provide acute relief and improve chances of survival. This article descibes the adaptation and use of a continuous flow evacuation device to resolve pneumothorax in 3 cattle with pneumothorax associated with infectious lower airway disease.
