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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Intestinal histological alterations in farmed red-bellied pacu Piaractus brachypomus (Characiformes: Serrasalmidae) heavily infected by roundworms

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Author(s):
Cuadros, Ruben C. [1] ; Rivadeneyra, Norma L. S. [2] ; Flores-Gonzales, Anai [3] ; Mertins, Omar [4] ; Malta, Jose C. O. [5] ; Serrano-Martinez, M. Enrique [6] ; Mathews, Patrick D. [7, 4]
Total Authors: 7
Affiliation:
[1] CITE Pesquero Amazonico Ahuashiyacu, Inst Tecnol Prod, Tarapoto, San Martin - Peru
[2] CITE Pesquero Amazonico Pucallpa, Inst Tecnol Prod, Loreto - Peru
[3] Res Inst Peruvian Amazon IIAP AQUAREC, Puerto Maldonado 17000, Madre De Dios - Peru
[4] Univ Fed Sao Paulo, Paulista Med Sch, Dept Biophys, BR-04023062 Sao Paulo - Brazil
[5] Natl Inst Amazonian Res, Lab Parasitol & Pathol Fish, BR-69060001 Manaus, Amazonas - Brazil
[6] Univ Peruana Cayetano Heredia, Fac Vet Med & Zootech, Lima 15102 - Peru
[7] Univ Sao Paulo, Inst Biosci, Dept Zool, BR-05508090 Sao Paulo - Brazil
Total Affiliations: 7
Document type: Journal article
Source: AQUACULTURE INTERNATIONAL; v. 29, n. 3 FEB 2021.
Web of Science Citations: 0
Abstract

The farmed red-bellied pacu Piaractus brachypomus is a valuative commercial fish widely exploited in fish farming. Histopathologic alterations in small intestine of this fish were associated with heavy roundworms infection. Of a total of thirty-five fish examined, all were parasitized with a prevalence of 100%, intensity of 290-6403, and mean intensity of infection of 4467.5 parasites per fish. According to the morphological features of whole nematodes examined using light and electronic microscopy, the parasite was identified as Rondonia rondoni Travassos. Rev Vet e Zoot 10, 59-70; 1920. The fish intestinal tissue alterations include fusion of villi, edema, disorganization of epithelial cells, epithelial abrasion, and flaking of the villus at mucosa layer level and submucosa layer with some regions of necrosis and lymphocyte infiltrate. This is the first report of histopathological alterations caused by infection of the atractid nematode R. rondoni in a farmed population of P. brachypomus in the Peruvian Amazon. The study points out the need of improving the strategies of parasitic prevention and control in order to better prevent future disease outbreaks. (AU)

FAPESP's process: 18/20482-3 - Diversity of microscopic cnidarians from the Amazon Basin with emphasis on phylogeny, systematic and interaction with their hosts
Grantee:Patrick Mathews Delgado
Support Opportunities: Scholarships in Brazil - Post-Doctoral