Three-way cross designs for animal breeding experiments

Three-way crossbreeding has been a major tool for the development of present day commercial breeds. The hybrids thus produced are more stable and they exhibit individual as well as population buffering mechanism because of the broad genetic base. Here, 2 methods of constructing designs for breeding...

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Main Authors: MOHD HARUN, CINI VARGHESE, ELDHO VARGHESE, SEEMA JAGGI
Format: Article
Language:English
Published: Indian Council of Agricultural Research 2016-06-01
Series:Indian Journal of Animal Sciences
Subjects:
Online Access:https://epubs.icar.org.in/index.php/IJAnS/article/view/59238
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author MOHD HARUN
CINI VARGHESE
ELDHO VARGHESE
SEEMA JAGGI
author_facet MOHD HARUN
CINI VARGHESE
ELDHO VARGHESE
SEEMA JAGGI
author_sort MOHD HARUN
collection DOAJ
description Three-way crossbreeding has been a major tool for the development of present day commercial breeds. The hybrids thus produced are more stable and they exhibit individual as well as population buffering mechanism because of the broad genetic base. Here, 2 methods of constructing designs for breeding trials involving complete/ partial three-way crosses were developed. Among these, first method is based on mutually orthogonal Latin squares, which yield three-way crosses arranged in blocks. The other method is derived from two-associate class partially balanced incomplete block designs. The efficiency factor in terms of information per cross pertaining to general combining ability effects of half parents as well as full parents in comparison to a complete triallel cross plan, assuming the error variance to be same for both the plans, was computed. All these designs have a good efficiency. Parameters of the designs constructed are listed together with the efficiency factors.
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spelling doaj.art-bd5b9f74d7ff4a4cbaa9dcd223f621422023-08-18T06:08:23ZengIndian Council of Agricultural ResearchIndian Journal of Animal Sciences0367-83182394-33272016-06-0186610.56093/ijans.v86i6.59238Three-way cross designs for animal breeding experimentsMOHD HARUN0CINI VARGHESE1ELDHO VARGHESE2SEEMA JAGGI3Indian Agricultural Statistics Research Institute, Library Avenue, New Delhi 110 012 IndiaIndian Agricultural Statistics Research Institute, Library Avenue, New Delhi 110 012 IndiaIndian Agricultural Statistics Research Institute, Library Avenue, New Delhi 110 012 IndiaIndian Agricultural Statistics Research Institute, Library Avenue, New Delhi 110 012 India Three-way crossbreeding has been a major tool for the development of present day commercial breeds. The hybrids thus produced are more stable and they exhibit individual as well as population buffering mechanism because of the broad genetic base. Here, 2 methods of constructing designs for breeding trials involving complete/ partial three-way crosses were developed. Among these, first method is based on mutually orthogonal Latin squares, which yield three-way crosses arranged in blocks. The other method is derived from two-associate class partially balanced incomplete block designs. The efficiency factor in terms of information per cross pertaining to general combining ability effects of half parents as well as full parents in comparison to a complete triallel cross plan, assuming the error variance to be same for both the plans, was computed. All these designs have a good efficiency. Parameters of the designs constructed are listed together with the efficiency factors. https://epubs.icar.org.in/index.php/IJAnS/article/view/59238Association schemeCombining abilitiesPartially balanced incomplete block designsTriallel crossesTriangular designs
spellingShingle MOHD HARUN
CINI VARGHESE
ELDHO VARGHESE
SEEMA JAGGI
Three-way cross designs for animal breeding experiments
Indian Journal of Animal Sciences
Association scheme
Combining abilities
Partially balanced incomplete block designs
Triallel crosses
Triangular designs
title Three-way cross designs for animal breeding experiments
title_full Three-way cross designs for animal breeding experiments
title_fullStr Three-way cross designs for animal breeding experiments
title_full_unstemmed Three-way cross designs for animal breeding experiments
title_short Three-way cross designs for animal breeding experiments
title_sort three way cross designs for animal breeding experiments
topic Association scheme
Combining abilities
Partially balanced incomplete block designs
Triallel crosses
Triangular designs
url https://epubs.icar.org.in/index.php/IJAnS/article/view/59238
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AT cinivarghese threewaycrossdesignsforanimalbreedingexperiments
AT eldhovarghese threewaycrossdesignsforanimalbreedingexperiments
AT seemajaggi threewaycrossdesignsforanimalbreedingexperiments