Swim Bladder Disorders in Koi Carp (<i>Cyprinus carpio</i>)
Swim bladder disorders and consequent buoyancy problems are encountered in ornamental fish, including koi carp. Nevertheless, beyond clinical and pharmacological management, they are largely underdiagnosed. In this study, nine koi carp showing abdominal swelling and abnormal swimming behavior were i...
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doaj-b0f89c1ce98d455090cadedd3bb7e2542020-11-25T04:00:49ZengMDPI AGAnimals2076-26152020-10-01101974197410.3390/ani10111974Swim Bladder Disorders in Koi Carp (<i>Cyprinus carpio</i>)Rubina Sirri0Luciana Mandrioli1Samuele Zamparo2Francesca Errani3Enrico Volpe4Giorgia Tura5Tim Barbé6Sara Ciulli7Department of Veterinary Medical Sciences—Alma Mater Studiorum University of Bologna, 40064 Bologna, ItalyDepartment of Veterinary Medical Sciences—Alma Mater Studiorum University of Bologna, 40064 Bologna, ItalyDepartment of Veterinary Medical Sciences—Alma Mater Studiorum University of Bologna, 40064 Bologna, ItalyDepartment of Veterinary Medical Sciences—Alma Mater Studiorum University of Bologna, 40064 Bologna, ItalyDepartment of Veterinary Medical Sciences—Alma Mater Studiorum University of Bologna, 40064 Bologna, ItalyDepartment of Veterinary Medical Sciences—Alma Mater Studiorum University of Bologna, 40064 Bologna, ItalyDAP Tim Barbe and an der Steenstraat 45, 1750 Lennik (Vlaams-Brabant), BelgiumDepartment of Veterinary Medical Sciences—Alma Mater Studiorum University of Bologna, 40064 Bologna, ItalySwim bladder disorders and consequent buoyancy problems are encountered in ornamental fish, including koi carp. Nevertheless, beyond clinical and pharmacological management, they are largely underdiagnosed. In this study, nine koi carp showing abdominal swelling and abnormal swimming behavior were investigated. Clinical approach, varying from case to case, included ultrasonographic and X-ray investigations, bacteriological analysis of the collected fluid, antimicrobial susceptibility pattern, and possibly histological analysis. Diagnostic imaging, corroborating gross examination, documented swim bladder deformation/dislocation and serous fluid within the swim bladder chambers of most animals. Bacteria belonging to the Aeromonas hydrophila/caviae group and <i>Shewanella xiamenensis</i> were identified. <i>S. xiamenensis</i> strains showed a sensibility to all tested molecules except for one strain, which was resistant to tetracycline and cyprofloxacin. Antibiotic treatment succeeded in the full recovery of three cases in which <i>S. xiamemensis</i> infection was detected. Chronic aerocystitis was histologically documented where tissue was available. The swim bladder histopathological findings highlighted a chronic process that had compromised the quality of life of the animals. A multidisciplinary clinical–pathological and microbiological approach is highly suggested to recognize swim bladder conditions as early as possible, aiming to drive medical intervention and raising the chances of fish survival.https://www.mdpi.com/2076-2615/10/11/1974ornamental fishkoi carpcyprinidswim bladder disordersdiagnostic imagingmicrobiology |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rubina Sirri Luciana Mandrioli Samuele Zamparo Francesca Errani Enrico Volpe Giorgia Tura Tim Barbé Sara Ciulli |
spellingShingle |
Rubina Sirri Luciana Mandrioli Samuele Zamparo Francesca Errani Enrico Volpe Giorgia Tura Tim Barbé Sara Ciulli Swim Bladder Disorders in Koi Carp (<i>Cyprinus carpio</i>) Animals ornamental fish koi carp cyprinid swim bladder disorders diagnostic imaging microbiology |
author_facet |
Rubina Sirri Luciana Mandrioli Samuele Zamparo Francesca Errani Enrico Volpe Giorgia Tura Tim Barbé Sara Ciulli |
author_sort |
Rubina Sirri |
title |
Swim Bladder Disorders in Koi Carp (<i>Cyprinus carpio</i>) |
title_short |
Swim Bladder Disorders in Koi Carp (<i>Cyprinus carpio</i>) |
title_full |
Swim Bladder Disorders in Koi Carp (<i>Cyprinus carpio</i>) |
title_fullStr |
Swim Bladder Disorders in Koi Carp (<i>Cyprinus carpio</i>) |
title_full_unstemmed |
Swim Bladder Disorders in Koi Carp (<i>Cyprinus carpio</i>) |
title_sort |
swim bladder disorders in koi carp (<i>cyprinus carpio</i>) |
publisher |
MDPI AG |
series |
Animals |
issn |
2076-2615 |
publishDate |
2020-10-01 |
description |
Swim bladder disorders and consequent buoyancy problems are encountered in ornamental fish, including koi carp. Nevertheless, beyond clinical and pharmacological management, they are largely underdiagnosed. In this study, nine koi carp showing abdominal swelling and abnormal swimming behavior were investigated. Clinical approach, varying from case to case, included ultrasonographic and X-ray investigations, bacteriological analysis of the collected fluid, antimicrobial susceptibility pattern, and possibly histological analysis. Diagnostic imaging, corroborating gross examination, documented swim bladder deformation/dislocation and serous fluid within the swim bladder chambers of most animals. Bacteria belonging to the Aeromonas hydrophila/caviae group and <i>Shewanella xiamenensis</i> were identified. <i>S. xiamenensis</i> strains showed a sensibility to all tested molecules except for one strain, which was resistant to tetracycline and cyprofloxacin. Antibiotic treatment succeeded in the full recovery of three cases in which <i>S. xiamemensis</i> infection was detected. Chronic aerocystitis was histologically documented where tissue was available. The swim bladder histopathological findings highlighted a chronic process that had compromised the quality of life of the animals. A multidisciplinary clinical–pathological and microbiological approach is highly suggested to recognize swim bladder conditions as early as possible, aiming to drive medical intervention and raising the chances of fish survival. |
topic |
ornamental fish koi carp cyprinid swim bladder disorders diagnostic imaging microbiology |
url |
https://www.mdpi.com/2076-2615/10/11/1974 |
work_keys_str_mv |
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