Frequency and parasite load in gills of cachama fry (Colossoma macropomum) through direct examinations in three fish farms in Ucayali, Peru

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The aim of this study was to determine the frequency and load of ectoparasites in gills of cachama fry from three semi-intensive farming fish farms in the province of Coronel Portillo, Ucayali, Peru. Sixty fingerlings (35-45 days old) were selected from each of the three fingerling supply establishm...

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Detalles Bibliográficos
Autores: Rondón E., Juan, Villanueva C., César, Del Águila L., Roberto, Sandoval C., Nieves
Formato: artículo
Fecha de Publicación:2021
Institución:Universidad Nacional Mayor de San Marcos
Repositorio:Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
Lenguaje:español
OAI Identifier:oai:ojs.csi.unmsm:article/20010
Enlace del recurso:https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/20010
Nivel de acceso:acceso abierto
Materia:fingerlings
cachama
ectoparasites
fish farms
direct examinations
Ucayali
alevinos
gamitana
ectoparásitos
piscigranjas
exámenes directos
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oai_identifier_str oai:ojs.csi.unmsm:article/20010
network_acronym_str 1609-9117
repository_id_str .
network_name_str Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
dc.title.none.fl_str_mv Frequency and parasite load in gills of cachama fry (Colossoma macropomum) through direct examinations in three fish farms in Ucayali, Peru
Frecuencia y carga parasitaria en branquias de alevinos de gamitana (Colossoma macropomum) mediante exámenes directos en tres establecimientos piscícolas de Ucayali, Perú
title Frequency and parasite load in gills of cachama fry (Colossoma macropomum) through direct examinations in three fish farms in Ucayali, Peru
spellingShingle Frequency and parasite load in gills of cachama fry (Colossoma macropomum) through direct examinations in three fish farms in Ucayali, Peru
Rondón E., Juan
fingerlings
cachama
ectoparasites
fish farms
direct examinations
Ucayali
alevinos
gamitana
ectoparásitos
piscigranjas
exámenes directos
Ucayali
title_short Frequency and parasite load in gills of cachama fry (Colossoma macropomum) through direct examinations in three fish farms in Ucayali, Peru
title_full Frequency and parasite load in gills of cachama fry (Colossoma macropomum) through direct examinations in three fish farms in Ucayali, Peru
title_fullStr Frequency and parasite load in gills of cachama fry (Colossoma macropomum) through direct examinations in three fish farms in Ucayali, Peru
title_full_unstemmed Frequency and parasite load in gills of cachama fry (Colossoma macropomum) through direct examinations in three fish farms in Ucayali, Peru
title_sort Frequency and parasite load in gills of cachama fry (Colossoma macropomum) through direct examinations in three fish farms in Ucayali, Peru
dc.creator.none.fl_str_mv Rondón E., Juan
Villanueva C., César
Del Águila L., Roberto
Sandoval C., Nieves
author Rondón E., Juan
author_facet Rondón E., Juan
Villanueva C., César
Del Águila L., Roberto
Sandoval C., Nieves
author_role author
author2 Villanueva C., César
Del Águila L., Roberto
Sandoval C., Nieves
author2_role author
author
author
dc.subject.none.fl_str_mv fingerlings
cachama
ectoparasites
fish farms
direct examinations
Ucayali
alevinos
gamitana
ectoparásitos
piscigranjas
exámenes directos
Ucayali
topic fingerlings
cachama
ectoparasites
fish farms
direct examinations
Ucayali
alevinos
gamitana
ectoparásitos
piscigranjas
exámenes directos
Ucayali
dc.description.none.fl_txt_mv The aim of this study was to determine the frequency and load of ectoparasites in gills of cachama fry from three semi-intensive farming fish farms in the province of Coronel Portillo, Ucayali, Peru. Sixty fingerlings (35-45 days old) were selected from each of the three fingerling supply establishments (E1, E2 and E3), reared at similar density and feeding conditions. Three fresh gill layer sections were evaluated from both sides, by visual observation with a 2x magnifying glass to detect crustaceans and by direct microscopy at 10x for trematodes and at 40x for protozoa. Four degrees of infestation were considered; null (0 parasites), mild (1-3), moderate (4-7) and severe (>8). It was possible to identify mainly forms compatible with monogeneans of the Dactylogyridae family, compatible with Dactylogyrus spp (41.1%) and protozoa, mostly of the Oodiniaceae family, compatible with Piscinodinium spp (10.6%). No crustaceans were found. The frequencies of infestations were 28.3, 86.7 and 18.3% in E1, E2 and E3, respectively. Parasitic loads were mostly light (87.5, 53.8 and 83.3% for monogeneans and 80, 70 and 100% for protozoa, in E1, E2, and E3, respectively). The results suggest a lower sanitary condition in the E2 fingerlings. It is concluded that there was a higher frequency of infestations by monogeneans and light parasite loads in gills of cachama fry from the three fish farms evaluated by direct examinations.
El objetivo del estudio fue determinar la frecuencia y carga de ectoparásitos en branquias de alevinos de gamitana procedentes de tres establecimientos piscícolas de crianza semi-intensiva en la provincia de Coronel Portillo, Ucayali, Perú. Se seleccionaron 60 alevinos (35-45 días de edad) por cada uno de los tres establecimientos proveedores de alevinos (E1, E2 y E3), criados a condiciones similares en densidad y alimentación. Se evaluaron tres secciones de capas branquiales de ambos lados en fresco, mediante observación visual con una lupa a 2x para detectar crustáceos y mediante microscopía directa a 10x para trematodos y a 40x para protozoarios. Se consideraron cuatro grados de infestación; nulo (0 parásitos), leves (1-3), moderado (4-7) y severo (>8). Se logró identificar principalmente formas compatibles con monogeneos de la familia Dactylogyridae, compatibles con Dactylogyrus spp (41.1%) y protozoarios, mayormente de la familia Oodiniaceae, compatibles con Piscinodinium spp (10.6%). No se encontraron crustáceos. Las frecuencias de infestaciones fueron de 28.3, 86.7 y 18.3% en E1, E2 y E3, respectivamente. Las cargas parasitarias fueron mayormente leves (87.5, 53.8 y 83.3% para monogeneos y 80, 70 y 100% para protozoarios, en E1, E2, y E3, respectivamente). Los resultados sugieren una menor condición sanitaria en los alevinos del E2. Se concluye que hubo mayor frecuencia de infestaciones por monogeneos y cargas parasitarias leves en branquias de alevinos de gamitanas de las tres piscigranjas evaluadas mediante exámenes directos.
description The aim of this study was to determine the frequency and load of ectoparasites in gills of cachama fry from three semi-intensive farming fish farms in the province of Coronel Portillo, Ucayali, Peru. Sixty fingerlings (35-45 days old) were selected from each of the three fingerling supply establishments (E1, E2 and E3), reared at similar density and feeding conditions. Three fresh gill layer sections were evaluated from both sides, by visual observation with a 2x magnifying glass to detect crustaceans and by direct microscopy at 10x for trematodes and at 40x for protozoa. Four degrees of infestation were considered; null (0 parasites), mild (1-3), moderate (4-7) and severe (>8). It was possible to identify mainly forms compatible with monogeneans of the Dactylogyridae family, compatible with Dactylogyrus spp (41.1%) and protozoa, mostly of the Oodiniaceae family, compatible with Piscinodinium spp (10.6%). No crustaceans were found. The frequencies of infestations were 28.3, 86.7 and 18.3% in E1, E2 and E3, respectively. Parasitic loads were mostly light (87.5, 53.8 and 83.3% for monogeneans and 80, 70 and 100% for protozoa, in E1, E2, and E3, respectively). The results suggest a lower sanitary condition in the E2 fingerlings. It is concluded that there was a higher frequency of infestations by monogeneans and light parasite loads in gills of cachama fry from the three fish farms evaluated by direct examinations.
publishDate 2021
dc.date.none.fl_str_mv 2021-04-22
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/20010
10.15381/rivep.v32i2.20010
url https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/20010
identifier_str_mv 10.15381/rivep.v32i2.20010
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/20010/16541
dc.rights.none.fl_str_mv Derechos de autor 2021 Juan Rondón E., César Villanueva C., Roberto Del Águila L., Nieves Sandoval C.
http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos de autor 2021 Juan Rondón E., César Villanueva C., Roberto Del Águila L., Nieves Sandoval C.
http://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
publisher.none.fl_str_mv Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
dc.source.none.fl_str_mv Revista de Investigaciones Veterinarias del Perú; Vol 32 No 2 (2021); e20010
Revista de Investigaciones Veterinarias del Perú; Vol. 32 Núm. 2 (2021); e20010
1682-3419
1609-9117
reponame:Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
instname:Universidad Nacional Mayor de San Marcos
instacron:UNMSM
reponame_str Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
collection Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
instname_str Universidad Nacional Mayor de San Marcos
instacron_str UNMSM
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spelling Frequency and parasite load in gills of cachama fry (Colossoma macropomum) through direct examinations in three fish farms in Ucayali, PeruFrecuencia y carga parasitaria en branquias de alevinos de gamitana (Colossoma macropomum) mediante exámenes directos en tres establecimientos piscícolas de Ucayali, PerúRondón E., JuanVillanueva C., CésarDel Águila L., RobertoSandoval C., Nievesfingerlingscachamaectoparasitesfish farmsdirect examinationsUcayalialevinosgamitanaectoparásitospiscigranjasexámenes directosUcayaliThe aim of this study was to determine the frequency and load of ectoparasites in gills of cachama fry from three semi-intensive farming fish farms in the province of Coronel Portillo, Ucayali, Peru. Sixty fingerlings (35-45 days old) were selected from each of the three fingerling supply establishments (E1, E2 and E3), reared at similar density and feeding conditions. Three fresh gill layer sections were evaluated from both sides, by visual observation with a 2x magnifying glass to detect crustaceans and by direct microscopy at 10x for trematodes and at 40x for protozoa. Four degrees of infestation were considered; null (0 parasites), mild (1-3), moderate (4-7) and severe (>8). It was possible to identify mainly forms compatible with monogeneans of the Dactylogyridae family, compatible with Dactylogyrus spp (41.1%) and protozoa, mostly of the Oodiniaceae family, compatible with Piscinodinium spp (10.6%). No crustaceans were found. The frequencies of infestations were 28.3, 86.7 and 18.3% in E1, E2 and E3, respectively. Parasitic loads were mostly light (87.5, 53.8 and 83.3% for monogeneans and 80, 70 and 100% for protozoa, in E1, E2, and E3, respectively). The results suggest a lower sanitary condition in the E2 fingerlings. It is concluded that there was a higher frequency of infestations by monogeneans and light parasite loads in gills of cachama fry from the three fish farms evaluated by direct examinations.El objetivo del estudio fue determinar la frecuencia y carga de ectoparásitos en branquias de alevinos de gamitana procedentes de tres establecimientos piscícolas de crianza semi-intensiva en la provincia de Coronel Portillo, Ucayali, Perú. Se seleccionaron 60 alevinos (35-45 días de edad) por cada uno de los tres establecimientos proveedores de alevinos (E1, E2 y E3), criados a condiciones similares en densidad y alimentación. Se evaluaron tres secciones de capas branquiales de ambos lados en fresco, mediante observación visual con una lupa a 2x para detectar crustáceos y mediante microscopía directa a 10x para trematodos y a 40x para protozoarios. Se consideraron cuatro grados de infestación; nulo (0 parásitos), leves (1-3), moderado (4-7) y severo (>8). Se logró identificar principalmente formas compatibles con monogeneos de la familia Dactylogyridae, compatibles con Dactylogyrus spp (41.1%) y protozoarios, mayormente de la familia Oodiniaceae, compatibles con Piscinodinium spp (10.6%). No se encontraron crustáceos. Las frecuencias de infestaciones fueron de 28.3, 86.7 y 18.3% en E1, E2 y E3, respectivamente. Las cargas parasitarias fueron mayormente leves (87.5, 53.8 y 83.3% para monogeneos y 80, 70 y 100% para protozoarios, en E1, E2, y E3, respectivamente). Los resultados sugieren una menor condición sanitaria en los alevinos del E2. Se concluye que hubo mayor frecuencia de infestaciones por monogeneos y cargas parasitarias leves en branquias de alevinos de gamitanas de las tres piscigranjas evaluadas mediante exámenes directos.Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria2021-04-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/2001010.15381/rivep.v32i2.20010Revista de Investigaciones Veterinarias del Perú; Vol 32 No 2 (2021); e20010Revista de Investigaciones Veterinarias del Perú; Vol. 32 Núm. 2 (2021); e200101682-34191609-9117reponame:Revista UNMSM - Revista de Investigaciones Veterinarias del Perúinstname:Universidad Nacional Mayor de San Marcosinstacron:UNMSMspahttps://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/20010/16541Derechos de autor 2021 Juan Rondón E., César Villanueva C., Roberto Del Águila L., Nieves Sandoval C.http://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess2021-06-01T18:11:11Zmail@mail.com -
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