Morphology Differentiation and Structural Functionality of Ewes Due to Incomplete Crossbreeding

Most Chilean sheep stock comprises different degrees of crossbreeding over Corriedale breed. A common absorbent crossbreeding has been Australian Merino over Corriedale which, in many cases, has not been complete. The aim of this study was to evaluate the process of morphology differentiation and st...

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Autores principales: Latorre,E, Uribe,H, Martínez,M. E, Calderón,C, de la Barra,R
Lenguaje:English
Publicado: Sociedad Chilena de Anatomía 2011
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300049
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spelling oai:scielo:S0717-950220110003000492012-06-11Morphology Differentiation and Structural Functionality of Ewes Due to Incomplete CrossbreedingLatorre,EUribe,HMartínez,M. ECalderón,Cde la Barra,R Sheep Breeding Morphology Most Chilean sheep stock comprises different degrees of crossbreeding over Corriedale breed. A common absorbent crossbreeding has been Australian Merino over Corriedale which, in many cases, has not been complete. The aim of this study was to evaluate the process of morphology differentiation and structural functionality of Corriedale ewes undergoing incomplete absorbent crossbreeding which was carried out in order to create an animal with a new morphology. A total of four hundred adult ewes were measured; two hundred belonging to the incomplete crossbreeding, and two hundred from the two original breeds (one hundred Corriedale and one hundred Australian Merino ewes). All measured ewes were randomly selected. Fourteen body measurements were recorded and nine body indexes were calculated for each ewe. Results show that a new biotype has been created from the absorbent crossbreeding of Corriedale by Australian Merino, which produced ewes with a clear morphological and structural functionality differentiation as compared to the two original breeds. The new body format shows morphostructural variability coefficients that are similar to those found on other formally recognized sheep breeds.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.29 n.3 20112011-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300049en10.4067/S0717-95022011000300049
institution Scielo Chile
collection Scielo Chile
language English
topic Sheep
Breeding
Morphology
spellingShingle Sheep
Breeding
Morphology
Latorre,E
Uribe,H
Martínez,M. E
Calderón,C
de la Barra,R
Morphology Differentiation and Structural Functionality of Ewes Due to Incomplete Crossbreeding
description Most Chilean sheep stock comprises different degrees of crossbreeding over Corriedale breed. A common absorbent crossbreeding has been Australian Merino over Corriedale which, in many cases, has not been complete. The aim of this study was to evaluate the process of morphology differentiation and structural functionality of Corriedale ewes undergoing incomplete absorbent crossbreeding which was carried out in order to create an animal with a new morphology. A total of four hundred adult ewes were measured; two hundred belonging to the incomplete crossbreeding, and two hundred from the two original breeds (one hundred Corriedale and one hundred Australian Merino ewes). All measured ewes were randomly selected. Fourteen body measurements were recorded and nine body indexes were calculated for each ewe. Results show that a new biotype has been created from the absorbent crossbreeding of Corriedale by Australian Merino, which produced ewes with a clear morphological and structural functionality differentiation as compared to the two original breeds. The new body format shows morphostructural variability coefficients that are similar to those found on other formally recognized sheep breeds.
author Latorre,E
Uribe,H
Martínez,M. E
Calderón,C
de la Barra,R
author_facet Latorre,E
Uribe,H
Martínez,M. E
Calderón,C
de la Barra,R
author_sort Latorre,E
title Morphology Differentiation and Structural Functionality of Ewes Due to Incomplete Crossbreeding
title_short Morphology Differentiation and Structural Functionality of Ewes Due to Incomplete Crossbreeding
title_full Morphology Differentiation and Structural Functionality of Ewes Due to Incomplete Crossbreeding
title_fullStr Morphology Differentiation and Structural Functionality of Ewes Due to Incomplete Crossbreeding
title_full_unstemmed Morphology Differentiation and Structural Functionality of Ewes Due to Incomplete Crossbreeding
title_sort morphology differentiation and structural functionality of ewes due to incomplete crossbreeding
publisher Sociedad Chilena de Anatomía
publishDate 2011
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300049
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AT martinezme morphologydifferentiationandstructuralfunctionalityofewesduetoincompletecrossbreeding
AT calderonc morphologydifferentiationandstructuralfunctionalityofewesduetoincompletecrossbreeding
AT delabarrar morphologydifferentiationandstructuralfunctionalityofewesduetoincompletecrossbreeding
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