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Comparison of Three Commercial Competitive-Exclusion Products for Controlling Salmonella Colonization of Broilers in Brazil

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Abstract:

In this study, a new competitive-exclusion (CE) product, Mucosal Starter Culture (MSC), was compared with two other CE products (Aviguard and Avifree) commercially available in Brazil to evaluate their ability to protect newly hatched chicks against colonization by a strain of Salmonella Kedougou. This study was based on a previously published and recommended method for such products. Separate groups of the chicks were dosed orally with the respective treatment materials and challenged 24 h later, and their ceca were examined for Salmonella 5 days after challenge. Under the test conditions, only MSC and Aviguard gave statistically significant (P < 0.05) protection to the chicks, but the MSC treatment yielded the lowest mean level of cecal carriage and the smallest proportion of Salmonella-positive birds.

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Document Type: Miscellaneous

Affiliations: 1: Department of Pathology, Faculty of Veterinary Medicine and Animal Husbandry, University of Sao Paulo, Avenida Corifeu de Azevedo Marques, 2720, Sao Paulo, Brazil 2: Department of Pathology, Faculty of Veterinary Medicine and Animal Husbandry, University of Sao Paulo, Avenida Corifeu de Azevedo Marques, 2720, Sao Paulo, Brazil 3: Wayne Farms LLC, 4110 Continental Drive, Oakwood, Georgia 30566, USA

Publication date: March 1, 2003

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