Selection for environmental variance of litter size in rabbits

Genetics, Selection, Evolution : GSE
A BlascoM J Argente

Abstract

In recent years, there has been an increasing interest in the genetic determination of environmental variance. In the case of litter size, environmental variance can be related to the capacity of animals to adapt to new environmental conditions, which can improve animal welfare. We developed a ten-generation divergent selection experiment on environmental variance. We selected one line of rabbits for litter size homogeneity and one line for litter size heterogeneity by measuring intra-doe phenotypic variance. We proved that environmental variance of litter size is genetically determined and can be modified by selection. Response to selection was 4.5% of the original environmental variance per generation. Litter size was consistently higher in the Low line than in the High line during the entire experiment. We conclude that environmental variance of litter size is genetically determined based on the results of our divergent selection experiment. This has implications for animal welfare, since animals that cope better with their environment have better welfare than more sensitive animals. We also conclude that selection for reduced environmental variance of litter size does not depress litter size.

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Citations

Jul 12, 2017·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·M J ArgenteA Blasco
Jul 12, 2018·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·Nora Formoso-RaffertyIsabel Cervantes
Sep 28, 2018·Annals of the New York Academy of Sciences·Torsten Nygaard KristensenIlkka Kronholm
Mar 30, 2019·Journal of Evolutionary Biology·María Alejandra Petino ZappalaJuan José Fanara
Aug 29, 2018·Animal : an International Journal of Animal Bioscience·M L GarcíaM J Argente
Feb 27, 2019·Animal : an International Journal of Animal Bioscience·M J ArgenteA Blasco
Jul 20, 2019·G3 : Genes - Genomes - Genetics·Adile TatliyerJuan Pablo Gutiérrez
Nov 12, 2019·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·Laiza Helena de Souza IungHerman Arend Mulder
May 30, 2020·Animals : an Open Access Journal From MDPI·Nora Formoso-RaffertyJuan Pablo Gutiérrez
May 8, 2020·Genetics, Selection, Evolution : GSE·Cristina Casto-RebolloNoelia Ibáñez-Escriche
May 21, 2020·Evolutionary Applications·Mads F SchouAry A Hoffmann
Sep 5, 2020·Animals : an Open Access Journal From MDPI·Dhekra BeloumiMaría-José Argente
Nov 11, 2017·Evolution; International Journal of Organic Evolution·Michael ØrstedTorsten Nygaard Kristensen
Jun 15, 2019·Genetics, Selection, Evolution : GSE·Nora Formoso-RaffertyLoys Bodin
Aug 16, 2019·The Journal of Experimental Biology·Jamilla Akhund-ZadeBenjamin de Bivort
Aug 28, 2019·Animals : an Open Access Journal From MDPI·Ivan AgeaMaría-José Argente
Jan 17, 2020·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·Jan DobrzańskiEwa Sell-Kubiak
Mar 16, 2019·Animal : an International Journal of Animal Bioscience·E M HeußC Große-Brinkhaus
Mar 7, 2019·Animal : an International Journal of Animal Bioscience·J CasellasS Id-Lahoucine
Dec 30, 2020·Animals : an Open Access Journal From MDPI·Iván AgeaMaría-José Argente
Nov 15, 2020·Fish Physiology and Biochemistry·Erick PereraJaume Pérez-Sánchez
Jul 15, 2021·Genetics, Selection, Evolution : GSE·Cristina Casto-RebolloNoelia Ibáñez-Escriche

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