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publicado em 29/12/2012 às 20h35:00
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Research identifies microorganisms responsible for losses in poultry

Work developed molecular technique able to differentiate two types of Salmonella, which cause different diseases in birds

 
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Foto: Marcos Santos/USP Imagens
Foto: Marcos Santos/USP Imagens
Salmonella Gallinarum and Salmonella Pullorum, microorganisms are restricted to birds and cause distinct diseases responsible for significant economic losses in the poultry Salmonella Gallinarum e Salmonella Pullorum, são microrganismos restritos a aves e causam doenças distintas responsáveis por consideráveis perdas econômicas na avicultura
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Salmonella Gallinarum and Salmonella Pullorum, microorganisms are restricted to birds and cause distinct diseases responsible for significant economic losses in the poultry
Salmonella Gallinarum e Salmonella Pullorum, são microrganismos restritos a aves e causam doenças distintas responsáveis por consideráveis perdas econômicas na avicultura

Molecular technique developed in the area of ​​microbiology is able to differentiate safely Salmonella Gallinarum and Salmonella Pullorum. These two organisms are restricted to birds, and cause distinct diseases (typhoid and avian pulorose respectively) responsible for significant economic losses in the poultry industry.

The survey was conducted Master's Diego Alves Felipe Batista, the program Postgraduate Agricultural Microbiology Unesp Jaboticabal.

Because they have similar morphological features when isolated on plates containing solid medium, it is not possible to differentiate from one another. The laboratory and clinical distinction between them is important since some sanitary aids, particular to each of them, can be taken in order to control the population of these microorganisms in poultry production areas and prevent the spread to other areas, Batista explains.

The author adds that agglutination tests that generate response against surface antigens and flagellar are not useful to differentiate them since both have the same antigens and are not flagellated. Thus discrimination is made between them through biochemical series based on the use of some carbohydrates and amino acids, but this procedure is laborious, takes 2 to 4 days and in some cases are not able to distinguish them in a efficient.

The study entitled Differentiation between Salmonella enterica subspecies enterica serovar Gallinarum biovar Gallinarum and biovar Pullorum based on a polymorphic genomic region was awarded as the best in the field of Veterinary Microbiology in Latin America, during the XXI Latin American Congress of Microbiology (ALAM).

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Source: Isaude.net
   Palavras-chave:   Microbiology    Salmonella    Microorganisms    Birds    Typhus    Pulurose    Poultry    Poultry production    Dissemination   
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