Bibliographic citations
Jose, G., (2015). Caracterización histopatológica de lesiones en alevines de paiche (Arapaima gigas) en una piscigranja de la región Ucayali - Perú [Tesis, Universidad Nacional Mayor de San Marcos]. https://hdl.handle.net/20.500.12672/4259
Jose, G., Caracterización histopatológica de lesiones en alevines de paiche (Arapaima gigas) en una piscigranja de la región Ucayali - Perú [Tesis]. PE: Universidad Nacional Mayor de San Marcos; 2015. https://hdl.handle.net/20.500.12672/4259
@misc{renati/1224985,
title = "Caracterización histopatológica de lesiones en alevines de paiche (Arapaima gigas) en una piscigranja de la región Ucayali - Perú",
author = "Jose Luis Enrique, García Candela",
publisher = "Universidad Nacional Mayor de San Marcos",
year = "2015"
}
--- The aim of this study was to determine histopathological lesions in some tissues fingerlings paiche (Arapaima gigas). Thirty apparently normal stage juvenile fish were collected from a fish farm Experimental Station IVITA-Pucallpa, Ucayali (Peru); taking skin samples, skeletal muscle, kidney, liver, intestine and gills for histopathological study. The histopathological findings in the gills were hyperplasia of gill filaments, merger and congestion lamellae (30/30), respectively; skin were hyperplasia of mucous cells (30/30), necrosis of epithelial tissue (23/30), inflammatory cell infiltrate (20/30), infiltrate bacterial structures (30/30) and increased the melanophore cells in degranulation (30/30); in the kidney was observed: tubular hydropic degeneration (30/30), tubular necrosis (30/30), glomerular necrosis (28/30), congestion (30/30), presence of melanomacrophage center (30/30) and infiltrates bacterial structures (30/30) throughout the parenchyma; in the intestine was observed: detachment of the intestinal mucosa (30/30) and hyperplasia of mucous cells (15/30); in skeletal muscle was observed: muscular necrosis (30/30), hyperemia (30/30), meronts uninucleados and division of Microsporidium sp (30/30), inflammatory cell infiltrate (29/30) and bacterial (30/30), muscle necrosis (30/30), separation of the muscle fibers (30/30); found in the liver: presence of necrosis (30/30), and bacterial infiltration of inflammatory cells (30/30), congestion (30/30) and presence of melanomacrophage center (15/30) throughout the parenchyma. We conclude, the study found that the lesions found in the different organs of fingerlings paiche (Arapaima gigas), were related to poor water quality and infectious causes associated with bacterial pathogens (Aeromonas sp.) And parasitic (Microsporidium sp); and noninfectious, being suggestive of nutritional origin. Keywords: Arapaima gigas, paiche, histopathological lessons.
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