Growth traits in simple crossbreeding among dam and sire lines

Twenty-five genetic groups were produced following a diallel-crossbreeding scheme among five lines: three dam and two sire lines belonging to two Spanish Research Institutions (UPV and IRTA). A total of 2773 young rabbits from 525 kindlings were controlled in different seasons. Growth traits were ev...

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Main Authors: Orengo, J., Gómez, Ernesto A., Piles, M., Rafel, O., Ramon Boyero, Juan
Format: Objeto de conferencia
Language:Inglés
Published: World Rabbit Science Association 2021
Subjects:
Online Access:http://hdl.handle.net/20.500.11939/7676
http://world-rabbit-science.com/WRSA-Proceedings/Congress-2004-Puebla/Papers/Genetics/G-Orengo.pdf
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author Orengo, J.
Gómez, Ernesto A.
Piles, M.
Rafel, O.
Ramon Boyero, Juan
author_browse Gómez, Ernesto A.
Orengo, J.
Piles, M.
Rafel, O.
Ramon Boyero, Juan
author_facet Orengo, J.
Gómez, Ernesto A.
Piles, M.
Rafel, O.
Ramon Boyero, Juan
author_sort Orengo, J.
collection ReDivia
description Twenty-five genetic groups were produced following a diallel-crossbreeding scheme among five lines: three dam and two sire lines belonging to two Spanish Research Institutions (UPV and IRTA). A total of 2773 young rabbits from 525 kindlings were controlled in different seasons. Growth traits were evaluated during the fattening period lasting from five to nine weeks. On average, genetic groups coming from lines selected for growth rate were heavier (+57 g at weaning and 311 g at 60 days), had a faster growth rate (+9g/d) and a realised higher daily feed intake (+12.9 g/d), improving feed conversion ratio (-0.21), than the groups originated from crosses among lines selected for litter size. Crossbreeding parameters were estimated using the Dickerson model. Maternal genetic and heterosis effects were close to 0 or very low. Direct genetic effects mainly regulated expression of these traits.
format Objeto de conferencia
id ReDivia7676
institution Instituto Valenciano de Investigaciones Agrarias (IVIA)
language Inglés
publishDate 2021
publishDateRange 2021
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publisherStr World Rabbit Science Association
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spelling ReDivia76762025-04-25T14:54:09Z Growth traits in simple crossbreeding among dam and sire lines Orengo, J. Gómez, Ernesto A. Piles, M. Rafel, O. Ramon Boyero, Juan L02 Animal feeding L52 Animal physiology - Growth and development L51 Animal physiology - Nutrition Growth Crossbreeding Heterosis Feed efficiency Rabbits Twenty-five genetic groups were produced following a diallel-crossbreeding scheme among five lines: three dam and two sire lines belonging to two Spanish Research Institutions (UPV and IRTA). A total of 2773 young rabbits from 525 kindlings were controlled in different seasons. Growth traits were evaluated during the fattening period lasting from five to nine weeks. On average, genetic groups coming from lines selected for growth rate were heavier (+57 g at weaning and 311 g at 60 days), had a faster growth rate (+9g/d) and a realised higher daily feed intake (+12.9 g/d), improving feed conversion ratio (-0.21), than the groups originated from crosses among lines selected for litter size. Crossbreeding parameters were estimated using the Dickerson model. Maternal genetic and heterosis effects were close to 0 or very low. Direct genetic effects mainly regulated expression of these traits. 2021-10-21T14:20:43Z 2021-10-21T14:20:43Z 2005 conferenceObject Orengo, J., Gomez, E. A., Piles, M., Rafel, O. & Ramon, J. (2005). Growth traits in simple crossbreeding among dam and sire lines. Proceedings of the 8th World Rabbit Congress, 114-121. http://hdl.handle.net/20.500.11939/7676 http://world-rabbit-science.com/WRSA-Proceedings/Congress-2004-Puebla/Papers/Genetics/G-Orengo.pdf en 2004-09-07 8th World Rabbit Congress Puebla, México Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess World Rabbit Science Association electronico
spellingShingle L02 Animal feeding
L52 Animal physiology - Growth and development
L51 Animal physiology - Nutrition
Growth
Crossbreeding
Heterosis
Feed efficiency
Rabbits
Orengo, J.
Gómez, Ernesto A.
Piles, M.
Rafel, O.
Ramon Boyero, Juan
Growth traits in simple crossbreeding among dam and sire lines
title Growth traits in simple crossbreeding among dam and sire lines
title_full Growth traits in simple crossbreeding among dam and sire lines
title_fullStr Growth traits in simple crossbreeding among dam and sire lines
title_full_unstemmed Growth traits in simple crossbreeding among dam and sire lines
title_short Growth traits in simple crossbreeding among dam and sire lines
title_sort growth traits in simple crossbreeding among dam and sire lines
topic L02 Animal feeding
L52 Animal physiology - Growth and development
L51 Animal physiology - Nutrition
Growth
Crossbreeding
Heterosis
Feed efficiency
Rabbits
url http://hdl.handle.net/20.500.11939/7676
http://world-rabbit-science.com/WRSA-Proceedings/Congress-2004-Puebla/Papers/Genetics/G-Orengo.pdf
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