Antibiotic resistence of Aeromonas hydrophila isolated from Piaractus mesopotamicus (Holmberg, 1887) and Oreochromis niloticus (Linnaeus, 1758)

Belem-Costa, Andrea; Cyrino, José Eurico Possebon

doi:10.1590/s0103-90162006000300011

Cited by 44 publications

(25 citation statements)

References 16 publications

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“…This result is in accordance with previous reports that found this species to be predominant [24]. In turn, A. veronii corresponded to 40% of the isolates.…”

Section: The Analysis Of the Common Bacterial Fish Pathogenssupporting

confidence: 93%

Identification of Bacterial Fish Pathogens in Brazil by Direct Colony PCR and 16S rRNA Gene Sequencing

Sebastião¹,

Furlan²,

Hashimoto³

et al. 2015

AiM

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Intensive fish farming systems in Brazil have increased the disease incidence, mainly of bacterial origin, due to higher stocking density, high organic matter levels and poor quality of the aquatic environment that causes high mortality rates during outbreaks. The identification of pathogenic species using a fast and reliable method of diagnosis is essential for successful epidemiological studies and disease control. The present study evaluated the use of direct colony PCR in combination with 16S rRNA gene sequencing to diagnose fish bacterial diseases, with the goal of reducing the costs and time necessary for bacterial identification. The method was successful for all 178 isolates tested and produced bands with the same intensity as the standard PCR performed using pure DNA. In conclusion, the genetics methods allowed detecting the most common and important pathogens in Aquaculture, including 12 species of occurrence in Brazilian fish farms. The results of the present study constitute an advance in the available diagnostic methods for bacterial pathogens in fish farms.

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“…This result is in accordance with previous reports that found this species to be predominant [24]. In turn, A. veronii corresponded to 40% of the isolates.…”

Section: The Analysis Of the Common Bacterial Fish Pathogenssupporting

confidence: 93%

Identification of Bacterial Fish Pathogens in Brazil by Direct Colony PCR and 16S rRNA Gene Sequencing

Sebastião¹,

Furlan²,

Hashimoto³

et al. 2015

AiM

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“…(Fig.1). Estes achados corroboram aos descritos para Aeromonas hydrophila (Belém-Costa & Cyrino 2006).…”

Section: Discussionunclassified

Sensibilidade antimicrobiana de bactérias isoladas de Jundiá (Rhamdia quelen)

et al. 2008

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Objetivando o delineamento do perfil de sensibilidade dos agentes bacterianos causadores de enfermidades em peixes, 51 isolados bacterianos provenientes de Jundiá e pertencentes aos gêneros Acinetobacter spp. (8), Aeromonas spp. (15), Edwardsiella spp. (2), Enterobacter spp. (2), Klebsiella spp. (1), Plesiomonas spp. (5), Pseudomonas spp. (1), Staphylococcus spp.(11) e Vibrio spp. (6) foram testados frente aos antimicrobianos utilizados no tratamento de enfermidades em peixes. Dos 51 isolados bacterianos obtidos de exemplares de Jundiá (Rhamdia quelen) 51 (100%) foram sensíveis a gentamicina, 49 (96,08%) ao sulfazotrim, 47 (92,16%) ao cloranfenicol, 43 (84,31%), a tetraciclina, 43 (84,31%) ao ácido nalidíxico, 31 (60,78%) à nitrofurantoina, 22 (43,14%) à eritromicina, 22 (43,14%) à ampicilina, 15 (29,41%) à espiramicina, 13 (25,50%) à colistina e 5 (3%) foram sensíveis a penicilina G. Com exceção de um isolado do gênero Staphylococcus spp., as bactérias analisadas no presente estudo foram resistentes a um ou mais agentes antimicrobianos testados. O conhecimento do perfil de sensibilidade das bactérias envolvidas em processos infecciosos nos peixes permitirá aos técnicos à adoção de uma antimicrobianoterapia racional, que contribuirá para o controle das enfermidades em Rhamdia quelen, sem causar grandes riscos à saúde pública e ao meio ambiente.

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“…) where adult fish have been discarded for exhibiting haemorrhagic and foaming of the oral cavity (associated with copepods). For bacterial diseases, the main agents are Aeromonas hydrophila (Belém‐Costa & Cyrino ) and Flavobacterium columnare (Sebastião et al . ).…”

Section: Most Important Speciesmentioning

confidence: 99%

South American fish for continental aquaculture

Valladão

Gallani

2016

Reviews in Aquaculture

238

172

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The South American continent is known for its high production and exports in fisheries and aquaculture, but has not reached its full potential in fish farming. The latest data on fish production in Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru, Uruguay and Venezuela were explored in this review. Aspects of biology, production, market and health of the species most produced in South America are described in detail. These species include the round fish (Colossoma spp., Piaractus spp. and hybrids) and catfish (Pseudoplatystoma spp. and hybrids), in addition to the promising pirarucu Arapaima gigas, yellowtail tetra Astyanax altiparanae and silver catfish Rhamdia quelen. Among the countries mentioned, Chile and Brazil are two of the largest intensive fish producers in the world. Chile relies primarily on marine fish, whereas Brazil is prominent for continental production. Special emphasis is given to the black pacu Colossoma macropomum because it is a commonly farmed fish in South American countries and offers several desirable productive characteristics (domesticated, omnivorous and easy to reproduce). Furthermore, this fish has the greatest potential to compete economically with tilapia production in South America. The production of native fish is currently overtaking the production of exotic species in some countries, which is considered a milestone for South American aquaculture. Regarding diseases, the main pathogens are similar to those observed throughout the world, such as Ichthyophthirius multifiliis, different species of monogeneans and trichodinids, and the bacteria Aeromonas hydrophila. Local pathogens, such as the parasites Perulernaea gamitanae and Goezia spinulosa, are also concerning.

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Antibiotic resistence of Aeromonas hydrophila isolated from Piaractus mesopotamicus (Holmberg, 1887) and Oreochromis niloticus (Linnaeus, 1758)

Cited by 44 publications

References 16 publications

Identification of Bacterial Fish Pathogens in Brazil by Direct Colony PCR and 16S rRNA Gene Sequencing

Identification of Bacterial Fish Pathogens in Brazil by Direct Colony PCR and 16S rRNA Gene Sequencing

Sensibilidade antimicrobiana de bactérias isoladas de Jundiá (Rhamdia quelen)

South American fish for continental aquaculture

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