Avaliação de parametros clínicos, hematológicos e viabilidade econômica do uso do florfenicol na metafilaxia das afecções respiratórias inespecíficas de bovinos confinados no estado de Goiás

• Ano de defesa: 2010
• Autor(a) principal: REZENDE, Marcus Luciano Guimaraes
• Orientador(a): FIORAVANTI, Maria Clorinda Soares
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Goiás
• Programa de Pós-Graduação: Mestrado em Ciência Animal
• Departamento: Ciências Agrárias - Veterinaria
• País: BR
• Palavras-chave em Português: Confinamento; custo-benefício; doença respiratória bovina; florfenicol; metafilaxia.
• Palavras-chave em Inglês: Cost-benefit; bovine respiratory disease; feedlot; florfenicol; metaphylaxis
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA::MEDICINA VETERINARIA PREVENTIVA::SAUDE ANIMAL (PROGRAMAS SANITARIOS)
• Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tde/872

Producing more in less physical space and in less time, increasing the profitability and reducing sanitary and economical risks are some of the challenges of the Brazilian livestock that the intensive breeding aims to supplant. A considerable increase in the number of confining unities as well as in feedlot cattle is already observed, thus, the attention to the control of pathological alterations deriving from the production intensification that can compromise the profitability and the economical viability of such activities should also increase. Considering the context presented herein, this essay aimed to analyze the economical/sanitary viability of the usage of florfenicol (40 mg/kg) in the metaphylaxis of bovine respiratory diseases (BRD) in feedlot cattle in the state of Goiás, where two groups totalizing 125 animals were concurrently monitored during 100 days. The first group, having 32 animals, was maintained under the standard sanitary protocol of the confining groups and it was called control (G1). The second group, having 93 animals, was submitted to metaphylaxis with florfenicol (40 mg/kg) at the beginning of the confinement and it was called metaphylaxis (G2). In the both groups, the sanitary and the productive standards were evaluated and a financial analysis was performed in order to economically validate the method. The animals were examined, weighted and materials for analyses were collected at the beginning and at the end of the confinement, when the occurrence of respiratory problems in the animals was evaluated. The animals submitted to metaphylaxis with florfenicol had a daily weight gain (DWG) superior to the one of the animals pertaining to the control group, and the indexes of BRD demonstrated through the analysis of the method viability (MV) were superior to 2.7%, which justifies the investment in the prevention of BRD.