Spatial variation on phenotypic variants of fiber production lama herds from Northern Jujuy Province, Argentine

Spatial variation on phenotypic variants of fiber production lama herds from Northern Jujuy Province, Argentine

In the north of the Province of Jujuy (Argentina), the lama population retains a great variability of its ethnozootechnical characteristics. Based on the scheme on the evolution of post-domestication populations, it has been stated that this variability determines a generalized situation of primariness, although there is an incipient standardization process. The objective was to choose the phenotypic variants (VFe) of the ethnozootechnical characters that explained the standardization process in preliminary work and to carry out a geostatistical analysis that allow to understand the spatial variation in the population of domestic camelids (llamas) to be studied. Georeferenced information from 85 troops from the North of the Province of Jujuy carried out between 1991 and 2008 was used. The chosen VFe were full fleece cover morphotype, white spotting design, absent/present staple raw pigmentation, luster staple types, using the respective FRe (%) calculated by herd. The greater presence of animals with VFe, that is, higher FRe, are indicators of selection and standardization. A geostatistical analysis consisted of the transformation of the geographic coordinates was carried out, obtaining an empirical semivariogram, evaluating the degree of spatial structuring and adjusting different semivariogram models and using kriging interpolation, obtaining a spatial variability map (MVs) for each phenotypic variant. Geostatistical analysis was performed from the exponential model which presented the best and highest values of spatial structuring. The MVs of these VFe showed an important spatial variation indicating an important generalized primariness with low values of FRe and on the other hand they confirm the existence of a well-defined area in the central and upper zone (Cieneguillas) with high values of FRe and a process of standardization. Through the geostatistical analysis, the spatial variation presented by the studied lama herds could efficiently and clearly be observed.

Saved in:
Bibliographic Details
Main Authors: Hick, Michel Victor Hubert, Prieto, Alejandro, Castillo, Maria Flavia, Frank, Eduardo
Format: Digital revista
Language:spa
Published: Asociacion Latinoamericana de Produccion Animal 2020
Online Access:https://ojs.alpa.uy/index.php/ojs_files/article/view/2800
Tags: Add Tag
No Tags, Be the first to tag this record!
id oai:ojs.ojs.alpa.uy:article-2800
record_format ojs
institution ALPA
collection OJS
country Uruguay
countrycode UY
component Revista
access En linea
databasecode rev-alpa
tag revista
region America del Sur
libraryname Biblioteca ALPA
language spa
format Digital
author Hick, Michel Victor Hubert
Prieto, Alejandro
Castillo, Maria Flavia
Frank, Eduardo
spellingShingle Hick, Michel Victor Hubert
Prieto, Alejandro
Castillo, Maria Flavia
Frank, Eduardo
Spatial variation on phenotypic variants of fiber production lama herds from Northern Jujuy Province, Argentine
author_facet Hick, Michel Victor Hubert
Prieto, Alejandro
Castillo, Maria Flavia
Frank, Eduardo
author_sort Hick, Michel Victor Hubert
title Spatial variation on phenotypic variants of fiber production lama herds from Northern Jujuy Province, Argentine
title_short Spatial variation on phenotypic variants of fiber production lama herds from Northern Jujuy Province, Argentine
title_full Spatial variation on phenotypic variants of fiber production lama herds from Northern Jujuy Province, Argentine
title_fullStr Spatial variation on phenotypic variants of fiber production lama herds from Northern Jujuy Province, Argentine
title_full_unstemmed Spatial variation on phenotypic variants of fiber production lama herds from Northern Jujuy Province, Argentine
title_sort spatial variation on phenotypic variants of fiber production lama herds from northern jujuy province, argentine
description In the north of the Province of Jujuy (Argentina), the lama population retains a great variability of its ethnozootechnical characteristics. Based on the scheme on the evolution of post-domestication populations, it has been stated that this variability determines a generalized situation of primariness, although there is an incipient standardization process. The objective was to choose the phenotypic variants (VFe) of the ethnozootechnical characters that explained the standardization process in preliminary work and to carry out a geostatistical analysis that allow to understand the spatial variation in the population of domestic camelids (llamas) to be studied. Georeferenced information from 85 troops from the North of the Province of Jujuy carried out between 1991 and 2008 was used. The chosen VFe were full fleece cover morphotype, white spotting design, absent/present staple raw pigmentation, luster staple types, using the respective FRe (%) calculated by herd. The greater presence of animals with VFe, that is, higher FRe, are indicators of selection and standardization. A geostatistical analysis consisted of the transformation of the geographic coordinates was carried out, obtaining an empirical semivariogram, evaluating the degree of spatial structuring and adjusting different semivariogram models and using kriging interpolation, obtaining a spatial variability map (MVs) for each phenotypic variant. Geostatistical analysis was performed from the exponential model which presented the best and highest values of spatial structuring. The MVs of these VFe showed an important spatial variation indicating an important generalized primariness with low values of FRe and on the other hand they confirm the existence of a well-defined area in the central and upper zone (Cieneguillas) with high values of FRe and a process of standardization. Through the geostatistical analysis, the spatial variation presented by the studied lama herds could efficiently and clearly be observed.
publisher Asociacion Latinoamericana de Produccion Animal
publishDate 2020
url https://ojs.alpa.uy/index.php/ojs_files/article/view/2800
work_keys_str_mv AT hickmichelvictorhubert spatialvariationonphenotypicvariantsoffiberproductionlamaherdsfromnorthernjujuyprovinceargentine
AT prietoalejandro spatialvariationonphenotypicvariantsoffiberproductionlamaherdsfromnorthernjujuyprovinceargentine
AT castillomariaflavia spatialvariationonphenotypicvariantsoffiberproductionlamaherdsfromnorthernjujuyprovinceargentine
AT frankeduardo spatialvariationonphenotypicvariantsoffiberproductionlamaherdsfromnorthernjujuyprovinceargentine
AT hickmichelvictorhubert variacionespacialdevariantesfenotipicasderebanosdellamasproductorasdefibradelnortedelaprovinciadejujuyargentina
AT prietoalejandro variacionespacialdevariantesfenotipicasderebanosdellamasproductorasdefibradelnortedelaprovinciadejujuyargentina
AT castillomariaflavia variacionespacialdevariantesfenotipicasderebanosdellamasproductorasdefibradelnortedelaprovinciadejujuyargentina
AT frankeduardo variacionespacialdevariantesfenotipicasderebanosdellamasproductorasdefibradelnortedelaprovinciadejujuyargentina
AT hickmichelvictorhubert variacaoespacialemvariantesfenotipicasderebanhosdelamadeproducaodefibradaprovinciadejujuynorteargentina
AT prietoalejandro variacaoespacialemvariantesfenotipicasderebanhosdelamadeproducaodefibradaprovinciadejujuynorteargentina
AT castillomariaflavia variacaoespacialemvariantesfenotipicasderebanhosdelamadeproducaodefibradaprovinciadejujuynorteargentina
AT frankeduardo variacaoespacialemvariantesfenotipicasderebanhosdelamadeproducaodefibradaprovinciadejujuynorteargentina
_version_ 1755914977769684992
spelling oai:ojs.ojs.alpa.uy:article-28002022-03-29T13:40:44Z Spatial variation on phenotypic variants of fiber production lama herds from Northern Jujuy Province, Argentine Variación espacial de variantes fenotípicas de rebaños de llamas productoras de fibra del norte de la provincia de Jujuy, Argentina Variação espacial em variantes fenotípicas de rebanhos de lama de produção de fibra da Província de Jujuy Norte, Argentina Hick, Michel Victor Hubert Prieto, Alejandro Castillo, Maria Flavia Frank, Eduardo camelids variability primariness standarization Camelidos variabilidad primariedad estandarizacion camelídeos primaria variabilidade estandardização In the north of the Province of Jujuy (Argentina), the lama population retains a great variability of its ethnozootechnical characteristics. Based on the scheme on the evolution of post-domestication populations, it has been stated that this variability determines a generalized situation of primariness, although there is an incipient standardization process. The objective was to choose the phenotypic variants (VFe) of the ethnozootechnical characters that explained the standardization process in preliminary work and to carry out a geostatistical analysis that allow to understand the spatial variation in the population of domestic camelids (llamas) to be studied. Georeferenced information from 85 troops from the North of the Province of Jujuy carried out between 1991 and 2008 was used. The chosen VFe were full fleece cover morphotype, white spotting design, absent/present staple raw pigmentation, luster staple types, using the respective FRe (%) calculated by herd. The greater presence of animals with VFe, that is, higher FRe, are indicators of selection and standardization. A geostatistical analysis consisted of the transformation of the geographic coordinates was carried out, obtaining an empirical semivariogram, evaluating the degree of spatial structuring and adjusting different semivariogram models and using kriging interpolation, obtaining a spatial variability map (MVs) for each phenotypic variant. Geostatistical analysis was performed from the exponential model which presented the best and highest values of spatial structuring. The MVs of these VFe showed an important spatial variation indicating an important generalized primariness with low values of FRe and on the other hand they confirm the existence of a well-defined area in the central and upper zone (Cieneguillas) with high values of FRe and a process of standardization. Through the geostatistical analysis, the spatial variation presented by the studied lama herds could efficiently and clearly be observed. En el Norte de la Provincia de Jujuy (Argentina), la población de llamas conserva una gran variabilidad de sus características etnozootécnicas. En base al esquema sobre la evolución de las poblaciones pos-domesticación, se ha enunciado que dicha variabilidad determina una situación generalizada de primariedad, aunque existe un proceso de estandarización incipiente. El objetivo consistió en escoger las variantes fenotípicas (VFe) de los caracteres etnozootécnicos que explicaron el proceso de estandarización en trabajos preliminares y realizar un análisis geoestadístico que permita comprender la variación espacial en la población de Camélidos domésticos (llamas) a estudiar. Se utilizó información georreferenciada de 85 tropas del Norte de la Prov. de Jujuy realizado entre 1991 y 2008. Las VFe escogidas fueron morfotipo calzado, diseño de mancha total, pigmentación de mecha crudo o ausente y tipos de mechas lustres, utilizando las respectivas FRe (%) calculadas por tropa. La mayor presencia de animales con dichas VFe es decir mayor FRe, son indicadoras de selección y estandarización. Se realizó un análisis geoestadístico el cual consistió en la transformación de las coordenadas geográficas, obtención de un semivariograma empírico, evaluación del grado de estructuración espacial y ajuste de diferentes modelos de semivariograma y por interpolación kriging, obtención de un mapa de variabilidad espacial (MVs) para cada variante fenotípica. Se realizó el análisis geoestadístico a partir del modelo exponencial el cual presentó los mejores y elevados valores de estructuración espacial. Los MVs de dichas VFe mostraron una importante variación espacial indicando una importante primariedad generalizada con valores bajos de FRe y por otra parte confirman la existencia de un área bien delimitada en la parte central y superior (Cieneguillas) con valores elevados de FRe y un proceso de estandarización. Mediante el análisis geoestadístico se pudo observar de manera eficiente y clara la variación espacial que presentan las tropas de llamas estudiadas. No norte da Província de Jujuy (Argentina), a população de lama mantém uma grande variabilidade de suas características etnozootécnicas. Com base no esquema da evolução das populações pós-domesticação, afirma-se que essa variabilidade determina uma situação generalizada de primaria, embora haja um processo de padronização incipiente. O objetivo foi escolher as variantes fenotípicas (VFe) dos caracteres etnozootécnicos que explicassem o processo de padronização em trabalhos preliminares e realizar uma análise geoestatística que permita compreender a variação espacial na população de camelídeos domésticos (lhamas) a serem estudados. Foram utilizadas informações georreferenciadas de 85 militares do Norte da Província de Jujuy realizadas entre 1991 e 2008. Os VFe escolhidos foram morfotipo de cobertura de lã total, desenho de manchas brancas, pigmentação bruta presente / ausente, tipos de grampo com brilho, usando o respectivo FRe (%) calculado por rebanho. A maior presença de animais com VFe, ou seja, maior FRe, são indicadores de seleção e padronização. Foi realizada uma análise geoestatística que consistiu na transformação das coordenadas geográficas, obtendo um semivariograma empírico, avaliando o grau de estruturação espacial e ajustando diferentes modelos de semivariograma e utilizando a interpolação de krigagem, obtendo um mapa de variabilidade espacial (MVs) para cada variante fenotípica. A análise geoestatística foi realizada a partir do modelo exponencial que apresentou os melhores e maiores valores de estruturação espacial. Os MVs dessas VFe apresentaram uma variação espacial importante indicando uma importante primaridade generalizada com baixos valores de FRe e por outro lado confirmam a existência de uma área bem definida na zona central e superior (Cieneguillas) com altos valores de FRe e um processo de padronização. Através da análise geoestatística, a variação espacial apresentada pelos rebanhos de lama estudados pôde ser observada com eficiência e clareza. Asociacion Latinoamericana de Produccion Animal 2020-10-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo cientifico original texto e imagen application/pdf https://ojs.alpa.uy/index.php/ojs_files/article/view/2800 Latin American Archives of Animal Production; Vol. 28 No. 3-4 (2020): Numero dedicado a las especies criollas; 189-196 Archivos Latinoamericanos de Producción Animal; Vol. 28 Núm. 3-4 (2020): Numero dedicado a las especies criollas; 189-196 2075-8359 1022-1301 spa https://ojs.alpa.uy/index.php/ojs_files/article/view/2800/1304 Copyright (c) 2020 Michel Victor Hubert Hick, Alejandro Prieto, Maria Flavia Castillo, Eduardo Frank https://creativecommons.org/licenses/by-nc-sa/4.0

Similar Items