Published 2007

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Publication details

Journal : Aquaculture , vol. 266 , p. 70–76–7 , 2007

Publisher : Elsevier

International Standard Numbers :
Printed : 0044-8486
Electronic : 1873-5622

Publication type : Academic article

Contributors : Ødegård, Jørgen; Olesen, Ingrid; Gjerde, Bjarne; Klemetsdal, Gunnar

Issue : 1-4

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Kjetil Aune
Chief Librarian


Using cross-sectional models, moderate to high heritabilities were estimated for ISA resistance both on the observable scale, using a linear model (0.21), and on the underlying scale, using a threshold model (0.32). Estimated test-day heritability was low (0.01) on the observable scale (linear model), but moderate (0.16) on the underlying scale (logit model). Relatively small differences were observed with respect to predictive ability for the different models. Still, the results suggested that test-day models for survival may improve accuracy of selection by 10-12% over what can be obtained by cross-sectional models. (c) 2007 Elsevier B.V. All rights reserved.