Isolamento de Pasteurella spp. e Vibrio spp. em robalos (Dicentrarchus labrax): susceptibilidade a diferentes grupos de antibióticos

Saavedra, María José; Brito, Röder Denise von Dolinger de; Sousa, Margarida; Alves, Anabela; Rema, Paulo

doi:10.1590/s0102-09352004000200022

Cited by 1 publication

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“…However, these feeds can be a source of pathogenic bacteria in aquaculture farms (34) like the genus of Vibrio and Pasteurella, such as Pasteurella haemolityca which is one of the most common bacterial pathogen involved in veterinary diseases such as pneumonic pasteurellosis in sheep all over the world (30). It is responsible of much mortality in hatchery environments, in animal farming industry and it considered as an aetiological agent of fish pasteurellosis (13,28,25). For these reasons, it is necessary to study the bacterial interaction with crustaceans in order to distinguish between pathogens and potential probiotic candidate, because it is found that bacteria had a beneficial effect such as providing nutritional elements like vitamins, essential amino acid, fatty acids and enzymes (10,36 (19).…”

Section: Introductionmentioning

confidence: 99%

Use of Pseudomonas stutzeri and Candida utilis in the improvement of the conditions of Artemia culture and protection against pathogens

Mahdhi¹,

Chaieb²,

Fathi³

et al. 2010

Braz. J. Microbiol.

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To evaluate the effect of two bacterial strains isolated from Artemia cysts and yeast (Candida utilis) on the survival, growth and total biomass production of its larvae, challenge tests were performed with Candida utilis, Pseudomonas stutzeri and Pasteurella haemolityca. In addition, a pathogenic strain of Vibrio alginolyticus was tested for comparative purposes.Pseudomonas stutzeri and Candida utilis have no impact on survival, but enhance growth and total biomass production of the larvae. However, we noted that Pasteurella haemolityca affect negatively Artemia larvae.The adhesion and antagonism assay demonstrates that Candida utilis and Pseudomonas stutzeri are fairly adherent and play an important role in the enhancement of the protection of Artemia culture against pathogens. On the basis of these results, it's suggested that it's possible to use Candida utilis and Pseudomonas stutzeri, potential candidates, as probiotic for the culture of Artemia larvae.

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