Intestinal histological alterations in farmed red-bellied pacu Piaractus brachypomus (Characiformes: Serrasalmidae) heavily infected by roundworms
| Autor: | Ruben C. Cuadros, Omar Mertins, Patrick D. Mathews, Norma L. S. Rivadeneyra, José Celso de Oliveira Malta, Anai P. Flores-Gonzales, M. Enrique Serrano-Martínez |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Nematoda Nematodes Fish farming Population purl.org/pe-repo/ocde/ford#4.01.08 [https] Zoology Aquaculture Aquatic Science Characiformes 01 natural sciences Pacu Peru education Rondonia education.field_of_study Piaractus brachypomus biology business.industry 010604 marine biology & hydrobiology Tissue damage 04 agricultural and veterinary sciences biology.organism_classification Serrasalmidae Nematode 040102 fisheries 0401 agriculture forestry and fisheries business Agronomy and Crop Science |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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