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Infezione da Aeromonas hydrophila in sterleti (Acipenser ruthenus) in un allevamento della Pianura Padana. / Aeromonas hydrophila in sterleti (Acipenser ruthenus) in Padana Plain.

Authors: QUAGLIO, FRANCESCO; R. BOCUS; M. L. DELGADO; R. GAMBERINI; L. NOBILE; C. MINELLI; A. GALUPPI; +1 Authors

Infezione da Aeromonas hydrophila in sterleti (Acipenser ruthenus) in un allevamento della Pianura Padana. / Aeromonas hydrophila in sterleti (Acipenser ruthenus) in Padana Plain.

Abstract

RIASSUNTO Nel giugno 1998, in una partita di 15.000 sterleti (Acipenser ruthenus) del peso medio di 1 grammo, in un allevamento d’acqua calda sito in Provincia di Modena, si è verificata nell’arco di 30 ore una grave mortalità (30%). All’esame clinico si osservavano: atassia natatoria, assenza di fuga alla stimolazione, dimagramento ed ascite. Da 20 storioni in stato pre-agonico erano eseguiti esami: anatomo-patologico, microbiologico ed istopatologico Alla necroscopia i pesci presentavano: arrossamenti peribuccali, perianali ed alla base delle pinne, anemia branchiale con petecchie, ascite, aumento di volume della milza e del fegato, che appariva di colorito pallido. All’esame istologico si rilevavano: ipertrofia ed iperplasia delle cellule caliciformi dell’epidermide, teleangiectasie branchiali, enterite catarrale, sofferenza dei tubuli renali, steatosi ed in taluni soggetti, congestione epatica. Dal fegato e rene di tutti i soggetti esaminati è stato costantemente isolato Aeromonas hydrophila. SUMMARY In the month of June 1998, 15.000 sterlets (Acipenser ruthenus), average weight 1g, intensively produced by a farm of the Po Plain close to Modena, were stricken with a sudden and heavy mortality (30% in the space of 30 hours). All affected fish exhibited similar clinical signs characterised by thinning, abdominal dropsy, ataxia and lethargy. 20 dying specimens were submitted in laboratory to necroscopsy and full parasitological, microbiological, histopathological examinations. Both perioral and perianal erythema and suffusions at the bases of the pectoral and ventral fins represented external lesions. Internally, anaemia of the gills with petechias, splenomegaly and hepatomegaly with pallor were observed. Microscopic lesions were characterised by hypertrophy, hyperplasia of globet cells of the skin, haemangiectasia of the gills, endoenteritis, enlarged sinusoids in the liver, degeneration of the tubules of kidney. Aeromonas hydrophila was isolated from all affected fish.

Country
Italy
Related Organizations
Keywords

Aeromonas hydrophila; Acipenser ruthenus

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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