Converting multi-trait breeding objectives into operative selection indexes to ensure genetic gains in low-input sheep and goat breeding programmes

Autores
Mueller, Joaquin Pablo; Getachew, Tesfaye; Rekik, Mourad; Rischkowsky, Barbara; Abate, Zelalem; Wondim, B.; Haile, Aynalem
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Small ruminant breeding programmes in low-input production systems are best organised at the community level. Participant farmers have to agree on goal traits and their relative importance. When BLUP breeding values of goal traits are not available in time, appropriate selection indexes can be used to aid visual selection. Taking Ethiopian Abergelle goat and Bonga sheep community-based breeding programmes (CBBPs) as an example, breeding objective functions were defined and selection indexes were constructed and evaluated. Breeding goals for Abergelle goats included early sale weight, survival and milk production. Breeding goals for Bonga included the number of offspring born, sale weight and survival. Economic weights of objective traits can be used in several ways depending on measured traits and the reliability of their genetic parameters. Selection indexes included combinations of objective traits measured on candidates and their dams and situations when Abergelle communities prefer to restrict genetic changes in number of offspring born or adult weight and when Bonga communities prefer to restrict changes in adult weight. Genetic and economic gains were evaluated as well as sensitivity to feed cost assumptions and to repeated dam records. After independent culling on preponderant traits such as coat colour and horn/tail type, sires in Abergelle goat community breeding programmes should be selected on indexes including at least own early live weight and their dams average milk production records. Sires for Bonga sheep programmes should be selected on own early live weight and desirably also on their dam’s number of offspring born. Sensitivity to feed cost assumptions was negligible but repeated measurements of dam records improved index accuracies considerably. Restricting genetic changes in number of offspring born or adult weight is not recommended.
EEA Bariloche
Fil: Mueller, Joaquin Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
Fil: Getachew, Tesfaye. International Centre for Agricultural Research in the Dry Areas; Etiopía
Fil: Rekik, Mourad. International Centre for Agricultural Research in the Dry Areas; Túnez
Fil: Rischkowsky, Barbara. International Centre for Agricultural Research in the Dry Areas; Etiopía
Fil: Abate, Zelalem. Bonga Agricultural Research Center; Etiopía
Fil: Wondim, B. Sekota Dryland Agriculture Research Center; Etiopía
Fil: Haile, Aynalem. International Centre for Agricultural Research in the Dry Areas; Etiopía
Fuente
Animal 15 (5) : 100198. (May 2021)
Materia
Ovinos
Caprinos
Programa de Crianza
Mejora Genética
Sheep
Goats
Breeding Programmes
Genetic Gain
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/14878
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oai_identifier_str oai:localhost:20.500.12123/14878
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network_name_str INTA Digital (INTA)
spelling Converting multi-trait breeding objectives into operative selection indexes to ensure genetic gains in low-input sheep and goat breeding programmesMueller, Joaquin PabloGetachew, TesfayeRekik, MouradRischkowsky, BarbaraAbate, ZelalemWondim, B.Haile, AynalemOvinosCaprinosPrograma de CrianzaMejora GenéticaSheepGoatsBreeding ProgrammesGenetic GainSmall ruminant breeding programmes in low-input production systems are best organised at the community level. Participant farmers have to agree on goal traits and their relative importance. When BLUP breeding values of goal traits are not available in time, appropriate selection indexes can be used to aid visual selection. Taking Ethiopian Abergelle goat and Bonga sheep community-based breeding programmes (CBBPs) as an example, breeding objective functions were defined and selection indexes were constructed and evaluated. Breeding goals for Abergelle goats included early sale weight, survival and milk production. Breeding goals for Bonga included the number of offspring born, sale weight and survival. Economic weights of objective traits can be used in several ways depending on measured traits and the reliability of their genetic parameters. Selection indexes included combinations of objective traits measured on candidates and their dams and situations when Abergelle communities prefer to restrict genetic changes in number of offspring born or adult weight and when Bonga communities prefer to restrict changes in adult weight. Genetic and economic gains were evaluated as well as sensitivity to feed cost assumptions and to repeated dam records. After independent culling on preponderant traits such as coat colour and horn/tail type, sires in Abergelle goat community breeding programmes should be selected on indexes including at least own early live weight and their dams average milk production records. Sires for Bonga sheep programmes should be selected on own early live weight and desirably also on their dam’s number of offspring born. Sensitivity to feed cost assumptions was negligible but repeated measurements of dam records improved index accuracies considerably. Restricting genetic changes in number of offspring born or adult weight is not recommended.EEA BarilocheFil: Mueller, Joaquin Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; ArgentinaFil: Getachew, Tesfaye. International Centre for Agricultural Research in the Dry Areas; EtiopíaFil: Rekik, Mourad. International Centre for Agricultural Research in the Dry Areas; TúnezFil: Rischkowsky, Barbara. International Centre for Agricultural Research in the Dry Areas; EtiopíaFil: Abate, Zelalem. Bonga Agricultural Research Center; EtiopíaFil: Wondim, B. Sekota Dryland Agriculture Research Center; EtiopíaFil: Haile, Aynalem. International Centre for Agricultural Research in the Dry Areas; EtiopíaElsevier2023-08-07T15:04:40Z2023-08-07T15:04:40Z2021-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/14878https://www.sciencedirect.com/science/article/pii/S17517311210004091751-732Xhttps://doi.org/10.1016/j.animal.2021.100198Animal 15 (5) : 100198. (May 2021)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-10-23T11:18:24Zoai:localhost:20.500.12123/14878instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-23 11:18:24.577INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Converting multi-trait breeding objectives into operative selection indexes to ensure genetic gains in low-input sheep and goat breeding programmes
title Converting multi-trait breeding objectives into operative selection indexes to ensure genetic gains in low-input sheep and goat breeding programmes
spellingShingle Converting multi-trait breeding objectives into operative selection indexes to ensure genetic gains in low-input sheep and goat breeding programmes
Mueller, Joaquin Pablo
Ovinos
Caprinos
Programa de Crianza
Mejora Genética
Sheep
Goats
Breeding Programmes
Genetic Gain
title_short Converting multi-trait breeding objectives into operative selection indexes to ensure genetic gains in low-input sheep and goat breeding programmes
title_full Converting multi-trait breeding objectives into operative selection indexes to ensure genetic gains in low-input sheep and goat breeding programmes
title_fullStr Converting multi-trait breeding objectives into operative selection indexes to ensure genetic gains in low-input sheep and goat breeding programmes
title_full_unstemmed Converting multi-trait breeding objectives into operative selection indexes to ensure genetic gains in low-input sheep and goat breeding programmes
title_sort Converting multi-trait breeding objectives into operative selection indexes to ensure genetic gains in low-input sheep and goat breeding programmes
dc.creator.none.fl_str_mv Mueller, Joaquin Pablo
Getachew, Tesfaye
Rekik, Mourad
Rischkowsky, Barbara
Abate, Zelalem
Wondim, B.
Haile, Aynalem
author Mueller, Joaquin Pablo
author_facet Mueller, Joaquin Pablo
Getachew, Tesfaye
Rekik, Mourad
Rischkowsky, Barbara
Abate, Zelalem
Wondim, B.
Haile, Aynalem
author_role author
author2 Getachew, Tesfaye
Rekik, Mourad
Rischkowsky, Barbara
Abate, Zelalem
Wondim, B.
Haile, Aynalem
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ovinos
Caprinos
Programa de Crianza
Mejora Genética
Sheep
Goats
Breeding Programmes
Genetic Gain
topic Ovinos
Caprinos
Programa de Crianza
Mejora Genética
Sheep
Goats
Breeding Programmes
Genetic Gain
dc.description.none.fl_txt_mv Small ruminant breeding programmes in low-input production systems are best organised at the community level. Participant farmers have to agree on goal traits and their relative importance. When BLUP breeding values of goal traits are not available in time, appropriate selection indexes can be used to aid visual selection. Taking Ethiopian Abergelle goat and Bonga sheep community-based breeding programmes (CBBPs) as an example, breeding objective functions were defined and selection indexes were constructed and evaluated. Breeding goals for Abergelle goats included early sale weight, survival and milk production. Breeding goals for Bonga included the number of offspring born, sale weight and survival. Economic weights of objective traits can be used in several ways depending on measured traits and the reliability of their genetic parameters. Selection indexes included combinations of objective traits measured on candidates and their dams and situations when Abergelle communities prefer to restrict genetic changes in number of offspring born or adult weight and when Bonga communities prefer to restrict changes in adult weight. Genetic and economic gains were evaluated as well as sensitivity to feed cost assumptions and to repeated dam records. After independent culling on preponderant traits such as coat colour and horn/tail type, sires in Abergelle goat community breeding programmes should be selected on indexes including at least own early live weight and their dams average milk production records. Sires for Bonga sheep programmes should be selected on own early live weight and desirably also on their dam’s number of offspring born. Sensitivity to feed cost assumptions was negligible but repeated measurements of dam records improved index accuracies considerably. Restricting genetic changes in number of offspring born or adult weight is not recommended.
EEA Bariloche
Fil: Mueller, Joaquin Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
Fil: Getachew, Tesfaye. International Centre for Agricultural Research in the Dry Areas; Etiopía
Fil: Rekik, Mourad. International Centre for Agricultural Research in the Dry Areas; Túnez
Fil: Rischkowsky, Barbara. International Centre for Agricultural Research in the Dry Areas; Etiopía
Fil: Abate, Zelalem. Bonga Agricultural Research Center; Etiopía
Fil: Wondim, B. Sekota Dryland Agriculture Research Center; Etiopía
Fil: Haile, Aynalem. International Centre for Agricultural Research in the Dry Areas; Etiopía
description Small ruminant breeding programmes in low-input production systems are best organised at the community level. Participant farmers have to agree on goal traits and their relative importance. When BLUP breeding values of goal traits are not available in time, appropriate selection indexes can be used to aid visual selection. Taking Ethiopian Abergelle goat and Bonga sheep community-based breeding programmes (CBBPs) as an example, breeding objective functions were defined and selection indexes were constructed and evaluated. Breeding goals for Abergelle goats included early sale weight, survival and milk production. Breeding goals for Bonga included the number of offspring born, sale weight and survival. Economic weights of objective traits can be used in several ways depending on measured traits and the reliability of their genetic parameters. Selection indexes included combinations of objective traits measured on candidates and their dams and situations when Abergelle communities prefer to restrict genetic changes in number of offspring born or adult weight and when Bonga communities prefer to restrict changes in adult weight. Genetic and economic gains were evaluated as well as sensitivity to feed cost assumptions and to repeated dam records. After independent culling on preponderant traits such as coat colour and horn/tail type, sires in Abergelle goat community breeding programmes should be selected on indexes including at least own early live weight and their dams average milk production records. Sires for Bonga sheep programmes should be selected on own early live weight and desirably also on their dam’s number of offspring born. Sensitivity to feed cost assumptions was negligible but repeated measurements of dam records improved index accuracies considerably. Restricting genetic changes in number of offspring born or adult weight is not recommended.
publishDate 2021
dc.date.none.fl_str_mv 2021-05
2023-08-07T15:04:40Z
2023-08-07T15:04:40Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/14878
https://www.sciencedirect.com/science/article/pii/S1751731121000409
1751-732X
https://doi.org/10.1016/j.animal.2021.100198
url http://hdl.handle.net/20.500.12123/14878
https://www.sciencedirect.com/science/article/pii/S1751731121000409
https://doi.org/10.1016/j.animal.2021.100198
identifier_str_mv 1751-732X
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Animal 15 (5) : 100198. (May 2021)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.982451

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