Rebanhos leiteiros com mastite causada por Staphylococcus aureus: diagnóstico e controle

Petrifilm Staph Express and the Lavac Staph vaccine, were evaluated to support S. aureus infections diagnosis and control in dairy herds. For detection of S. aureus in milk samples, Petrifilm was highly sensitive but varied in specificity according to interpretive criteria and trainning level of the...

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Detalles Bibliográficos
Autor: Breno de Oliveira Silva
Tipo de recurso: tesis doctoral
Estado:Versión publicada
Fecha de publicación:2006
País:Brasil
Institución:Universidade Federal de Minas Gerais (UFMG)
Repositorio:Repositório Institucional da UFMG
Idioma:portugués
OAI Identifier:oai:repositorio.ufmg.br:1843/BUOS-8P4LK2
Acceso en línea:http://hdl.handle.net/1843/BUOS-8P4LK2
Access Level:acceso abierto
Palabra clave:Vacina
Mastite
Petrifilm
Staphylococcus aureus
Vacina veterinária
Estafilococos aureos
Bovino de leite Doenças
Descripción
Sumario:Petrifilm Staph Express and the Lavac Staph vaccine, were evaluated to support S. aureus infections diagnosis and control in dairy herds. For detection of S. aureus in milk samples, Petrifilm was highly sensitive but varied in specificity according to interpretive criteria and trainning level of the person who reads the plates. Results were easier and faster achieved, if compared to standard culture techniques, showing potential for on-farm use in S. aureus treatment or control programs. The Lavac Staph vaccine was evaluated in cows with S. aureus infections during lactation or at dry-off. Vaccination increased S. aureus infections cure rates when associated to the dry cow therapy, showing efficacy on pathogen control of a high prevalence herd. During lactation, vaccination had no impact on S. aureus cure rates and its use was not justified. The S. aureus incidence was not decreased in any of the studied phases.