Skull osteometry of the adult alpaca (Vicugna pacos)

Skull osteometry of the adult alpaca (Vicugna pacos)

This study aimed to evaluate the skull osteometry and to calculate the craniometric indexes of adult alpacas (Vicugna pacos). The study was carried out using 30 heads of adult Huacaya alpacas (15 males and 15 females), from the district of Sicuani, Cusco, Peru. The skulls were obtained by the maceration technique. The anatomical description was applied using the recommended terminology by the Veterinary Anatomical Nomenclature 2012. A digital vernier was used in the measurement and calculation of craniometric indexes. The «t» test was used to determine differences due to sex. The results showed that adult alpacas do not have sexual dimorphism related to craniometry values. The skulls are the dolichocephalic type with a Total Cephalic Index of 46.43% and ultradolichocranial with a Total Cephalic Index of 55.42%. The alpaca face is the hiperleptene type with a Facial Index of 103.17%, presents a Mandibular Index of 62.33% and the facial triangle is of scalene type.

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Main Authors: Castañeda C., Henry, Navarrete Z., Miluska, Sato S., Alberto, Chávez R., Alexander
Format: Digital revista
Language:spa
Published: Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria 2016
Online Access:https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/11992
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spelling oai:ojs.csi.unmsm:article-119922017-02-20T21:28:53Z Skull osteometry of the adult alpaca (Vicugna pacos) Osteometría del Cráneo de la Alpaca Adulta (Vicugna pacos) Castañeda C., Henry Navarrete Z., Miluska Sato S., Alberto Chávez R., Alexander alpaca skull osteometry craniometric index alpaca cráneo osteometría índice craneométrico This study aimed to evaluate the skull osteometry and to calculate the craniometric indexes of adult alpacas (Vicugna pacos). The study was carried out using 30 heads of adult Huacaya alpacas (15 males and 15 females), from the district of Sicuani, Cusco, Peru. The skulls were obtained by the maceration technique. The anatomical description was applied using the recommended terminology by the Veterinary Anatomical Nomenclature 2012. A digital vernier was used in the measurement and calculation of craniometric indexes. The «t» test was used to determine differences due to sex. The results showed that adult alpacas do not have sexual dimorphism related to craniometry values. The skulls are the dolichocephalic type with a Total Cephalic Index of 46.43% and ultradolichocranial with a Total Cephalic Index of 55.42%. The alpaca face is the hiperleptene type with a Facial Index of 103.17%, presents a Mandibular Index of 62.33% and the facial triangle is of scalene type. El presente estudio tuvo como objetivo la evaluación de la osteometría del cráneo y el cálculo de los índices craneométricos de alpacas (Vicugna pacos) adultas. Se utilizaron 30 cabezas de alpacas Huacaya adultas (15 machos y 15 hembras), provenientes de Sicuani, Cusco, Perú. Los cráneos fueron obtenidos mediante la técnica de maceración. En la descripción anatómica se empleó la terminología recomendada por la Nómina Anatómica Veterinaria 2012. En la medición osteométrica y el cálculo de los índices craneométricos se empleó un vernier digital. El análisis estadístico se hizo con la prueba de "t". Los resultados no indicaron dimorfismo sexual en el aspecto relacionado a la craneometría por efecto del sexo. Los cráneos de la alpaca son de tipo dolicocéfalo con un Índice Cefálico Total de 46.43%, ultradolicocráneo con un Índice Craneal de 55.42%. La cara es del tipo hiperlepteno con un Índice Facial de 103.17%, presenta un Índice Mandibular de 62.33% y el triángulo facial es del tipo escaleno. Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria 2016-10-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article application/pdf https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/11992 10.15381/rivep.v27i3.11992 Revista de Investigaciones Veterinarias del Perú; Vol. 27 No. 3 (2016); 403-420 Revista de Investigaciones Veterinarias del Perú; Vol. 27 Núm. 3 (2016); 403-420 1682-3419 1609-9117 spa https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/11992/11210 Derechos de autor 2016 Henry Castañeda C., Miluska Navarrete Z., Alberto Sato S., Alexander Chávez R. https://creativecommons.org/licenses/by-nc-sa/4.0
institution UNMSM
collection OJS
country Perú
countrycode PE
component Revista
access En linea
databasecode rev-rivep
tag revista
region America del Sur
libraryname Biblioteca de la Facultad de Medicina Veterinaria
language spa
format Digital
author Castañeda C., Henry
Navarrete Z., Miluska
Sato S., Alberto
Chávez R., Alexander
spellingShingle Castañeda C., Henry
Navarrete Z., Miluska
Sato S., Alberto
Chávez R., Alexander
Skull osteometry of the adult alpaca (Vicugna pacos)
author_facet Castañeda C., Henry
Navarrete Z., Miluska
Sato S., Alberto
Chávez R., Alexander
author_sort Castañeda C., Henry
title Skull osteometry of the adult alpaca (Vicugna pacos)
title_short Skull osteometry of the adult alpaca (Vicugna pacos)
title_full Skull osteometry of the adult alpaca (Vicugna pacos)
title_fullStr Skull osteometry of the adult alpaca (Vicugna pacos)
title_full_unstemmed Skull osteometry of the adult alpaca (Vicugna pacos)
title_sort skull osteometry of the adult alpaca (vicugna pacos)
description This study aimed to evaluate the skull osteometry and to calculate the craniometric indexes of adult alpacas (Vicugna pacos). The study was carried out using 30 heads of adult Huacaya alpacas (15 males and 15 females), from the district of Sicuani, Cusco, Peru. The skulls were obtained by the maceration technique. The anatomical description was applied using the recommended terminology by the Veterinary Anatomical Nomenclature 2012. A digital vernier was used in the measurement and calculation of craniometric indexes. The «t» test was used to determine differences due to sex. The results showed that adult alpacas do not have sexual dimorphism related to craniometry values. The skulls are the dolichocephalic type with a Total Cephalic Index of 46.43% and ultradolichocranial with a Total Cephalic Index of 55.42%. The alpaca face is the hiperleptene type with a Facial Index of 103.17%, presents a Mandibular Index of 62.33% and the facial triangle is of scalene type.
publisher Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
publishDate 2016
url https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/11992
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