Morphological and histological characteristics of ovaries from two genetic groups of guinea pigs (Cavia porcellus) from South America

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This study aimed to describe morphological and histological characteristics of ovaries of two genetic groups of guinea pigs from Latin America. Ovaries from 20 improved and 20 native guinea pigs were collected after slaughtering. One ovary from each animal was weighed, measured, counted for visible...

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Detalles Bibliográficos
Autores: Fernández, Estefanía A., Rosales, Cornelio A., Garzón, Juan P., Argudo, Daniel E., Ayala, Luis E., Guevara, Guillermo E., Maldonado, Jaime E., Perea, Fernando P.
Formato: artículo
Fecha de Publicación:2022
Institución:Universidad Nacional Mayor de San Marcos
Repositorio:Revistas - Universidad Nacional Mayor de San Marcos
Lenguaje:inglés
OAI Identifier:oai:ojs.csi.unmsm:article/23349
Enlace del recurso:https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/23349
Nivel de acceso:acceso abierto
Materia:guinea pigs
ovary morphology
follicles
oocytes
cuy
morfología del ovario
folículos
ovocitos
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network_name_str Revistas - Universidad Nacional Mayor de San Marcos
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dc.title.none.fl_str_mv Morphological and histological characteristics of ovaries from two genetic groups of guinea pigs (Cavia porcellus) from South America
Características morfológicas e histológicas de los ovarios de dos grupos genéticos de cuyes (Cavia porcellus) de América del Sur
title Morphological and histological characteristics of ovaries from two genetic groups of guinea pigs (Cavia porcellus) from South America
spellingShingle Morphological and histological characteristics of ovaries from two genetic groups of guinea pigs (Cavia porcellus) from South America
Fernández, Estefanía A.
guinea pigs
ovary morphology
follicles
oocytes
cuy
morfología del ovario
folículos
ovocitos
title_short Morphological and histological characteristics of ovaries from two genetic groups of guinea pigs (Cavia porcellus) from South America
title_full Morphological and histological characteristics of ovaries from two genetic groups of guinea pigs (Cavia porcellus) from South America
title_fullStr Morphological and histological characteristics of ovaries from two genetic groups of guinea pigs (Cavia porcellus) from South America
title_full_unstemmed Morphological and histological characteristics of ovaries from two genetic groups of guinea pigs (Cavia porcellus) from South America
title_sort Morphological and histological characteristics of ovaries from two genetic groups of guinea pigs (Cavia porcellus) from South America
dc.creator.none.fl_str_mv Fernández, Estefanía A.
Rosales, Cornelio A.
Garzón, Juan P.
Argudo, Daniel E.
Ayala, Luis E.
Guevara, Guillermo E.
Maldonado, Jaime E.
Perea, Fernando P.
Fernández, Estefanía A.
Rosales, Cornelio A.
Garzón, Juan P.
Argudo, Daniel E.
Ayala, Luis E.
Guevara, Guillermo E.
Maldonado, Jaime E.
Perea, Fernando P.
author Fernández, Estefanía A.
author_facet Fernández, Estefanía A.
Rosales, Cornelio A.
Garzón, Juan P.
Argudo, Daniel E.
Ayala, Luis E.
Guevara, Guillermo E.
Maldonado, Jaime E.
Perea, Fernando P.
author_role author
author2 Rosales, Cornelio A.
Garzón, Juan P.
Argudo, Daniel E.
Ayala, Luis E.
Guevara, Guillermo E.
Maldonado, Jaime E.
Perea, Fernando P.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv guinea pigs
ovary morphology
follicles
oocytes
cuy
morfología del ovario
folículos
ovocitos
topic guinea pigs
ovary morphology
follicles
oocytes
cuy
morfología del ovario
folículos
ovocitos
description This study aimed to describe morphological and histological characteristics of ovaries of two genetic groups of guinea pigs from Latin America. Ovaries from 20 improved and 20 native guinea pigs were collected after slaughtering. One ovary from each animal was weighed, measured, counted for visible follicles on the ovarian surface, and used for subsequent oocyte collection by the slicing method. Contralateral ovaries were used to prepare histological sections and quantify follicles. Body and ovary weight and ovary length were significantly greater in improved than in native guinea pigs (p<0.01). Ovarian weight was greater in diestrus than in proestrus (p=0.0632) only in improved animals. The number of primordial, primary, secondary, and total follicles did not differ between genetic groups. The number of antral follicles was significantly greater in improved than in native guinea pigs. The thickness of zona pellucida and oocyte diameter did not differ between groups. The thickness of the zona pellucida was significantly greater in oocytes of category A than B and C in both groups of guinea pigs. In conclusion, ovaries from improved guinea pigs were heavier and longer than those from native animals. The number of antral follicles was greater in improved than native guinea pigs. Zona pellucida thickness and oocyte diameter were similar in both groups of guinea pigs.
publishDate 2022
dc.date.none.fl_str_mv 2022-08-31
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/23349
10.15381/rivep.v33i4.23349
url https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/23349
identifier_str_mv 10.15381/rivep.v33i4.23349
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/23349/18634
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv 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. 33 Núm. 4 (2022); e23349
Revista de Investigaciones Veterinarias del Perú; Vol. 33 No. 4 (2022); e23349
1682-3419
1609-9117
reponame:Revistas - Universidad Nacional Mayor de San Marcos
instname:Universidad Nacional Mayor de San Marcos
instacron:UNMSM
instname_str Universidad Nacional Mayor de San Marcos
instacron_str UNMSM
institution UNMSM
reponame_str Revistas - Universidad Nacional Mayor de San Marcos
collection Revistas - Universidad Nacional Mayor de San Marcos
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling Morphological and histological characteristics of ovaries from two genetic groups of guinea pigs (Cavia porcellus) from South AmericaCaracterísticas morfológicas e histológicas de los ovarios de dos grupos genéticos de cuyes (Cavia porcellus) de América del SurFernández, Estefanía A.Rosales, Cornelio A.Garzón, Juan P.Argudo, Daniel E.Ayala, Luis E.Guevara, Guillermo E.Maldonado, Jaime E.Perea, Fernando P.Fernández, Estefanía A.Rosales, Cornelio A.Garzón, Juan P.Argudo, Daniel E.Ayala, Luis E.Guevara, Guillermo E.Maldonado, Jaime E.Perea, Fernando P.guinea pigsovary morphologyfolliclesoocytescuymorfología del ovariofolículosovocitosThis study aimed to describe morphological and histological characteristics of ovaries of two genetic groups of guinea pigs from Latin America. Ovaries from 20 improved and 20 native guinea pigs were collected after slaughtering. One ovary from each animal was weighed, measured, counted for visible follicles on the ovarian surface, and used for subsequent oocyte collection by the slicing method. Contralateral ovaries were used to prepare histological sections and quantify follicles. Body and ovary weight and ovary length were significantly greater in improved than in native guinea pigs (p<0.01). Ovarian weight was greater in diestrus than in proestrus (p=0.0632) only in improved animals. The number of primordial, primary, secondary, and total follicles did not differ between genetic groups. The number of antral follicles was significantly greater in improved than in native guinea pigs. The thickness of zona pellucida and oocyte diameter did not differ between groups. The thickness of the zona pellucida was significantly greater in oocytes of category A than B and C in both groups of guinea pigs. In conclusion, ovaries from improved guinea pigs were heavier and longer than those from native animals. The number of antral follicles was greater in improved than native guinea pigs. Zona pellucida thickness and oocyte diameter were similar in both groups of guinea pigs.El estudio tuvo como objetivo describir las características morfológicas e histológicas de los ovarios de dos grupos genéticos de cuyes de América Latina. Se recolectaron ovarios de 20 cuyes mejorados y 20 nativos después del sacrificio. Se pesó y midió un ovario de cada animal, se contaron los folículos visibles en la superficie ovárica y se colectaron los ovocitos mediante cortes seriados de la corteza ovárica. Los ovarios contralaterales se utilizaron para preparar cortes histológicos y cuantificar los folículos. El peso corporal y la longitud y peso de los ovarios fueron significativamente mayores en los cuyes mejorados que en los nativos (p<0.01). El peso de los ovarios fue mayor en diestro que en proestro (p=0.0632) en los animales mejorados. El número de folículos primordiales, primarios, secundarios y totales no difirió entre los grupos genéticos. El número de folículos antrales fue significativamente mayor en los cuyes mejorados que en los nativos. El grosor de la zona pelúcida y el diámetro de los ovocitos no difirieron entre los grupos. El grosor de la zona pelúcida fue significativamente mayor en los ovocitos de la categoría A que en los de la B y C en ambos grupos de cuyes. En conclusión, los ovarios de los cuyes mejorados fueron más pesados y largos que los de los animales nativos. El número de folículos antrales fue mayor en los cutes mejorados que en los nativos. El grosor de la zona pelúcida y el diámetro de los ovocitos fueron similares en ambos grupos de cuyes.Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria2022-08-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/2334910.15381/rivep.v33i4.23349Revista de Investigaciones Veterinarias del Perú; Vol. 33 Núm. 4 (2022); e23349Revista de Investigaciones Veterinarias del Perú; Vol. 33 No. 4 (2022); e233491682-34191609-9117reponame:Revistas - Universidad Nacional Mayor de San Marcosinstname:Universidad Nacional Mayor de San Marcosinstacron:UNMSMenghttps://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/23349/18634Derechos de autor 2022 Estefanía A. Fernández, Cornelio A. Rosales, Juan P. Garzón, Daniel E. Argudo, Luis E. Ayala, Guillermo E. Guevara, Jaime E. Maldonado, Fernando P. Pereahttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessoai:ojs.csi.unmsm:article/233492022-09-06T13:24:59Z
score 13.982926
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