Abstract

DE YANIZ, M.G.  and  SANCHEZ BRUNI, S.F.. Aspectos fármaco-epidemiológicos de la enfermedad respiratoria bovina bacteriana en feedlots. Una problemática a resolver. Rev. vet. [online]. 2015, vol.26, n.2, pp.160-167. ISSN 1669-6840.

Bovine respiratory disease (BRD) is a multifactorial infectious disease mostly caused by viruses, bacterias and parasites. It usually affects cattle less than 2 years-old in feedlots and is one of the leading causes of morbility and mortality in this category. The pharmacological treatment of BRD involves the 8% of the total production costs, with high failure rates. Approximately 50% of total mortality takes place during the first 45 days within a feeding period. The lack of evidence-based diagnosis and no identification of bacterial strains together with the empirical pharmacological treatment, probably contributes to the development of bacterial resistance. Due to the lack of information on resistant strains in feedlot animals in Argentina, it was considered necessary to optimize antimicrobial therapy based on scientific evidence with chemical rotation of active pharmaceutical ingredients in naturally affected animals. It is expected that this will promote the reversion of the indiscriminate use of antibiotics and the appearance of resistant bacterial strains

Keywords : cattle; feedlot; pneumonia; antimicrobials; resistance.

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