Positive genetic correlation between resistance to bacterial (furunculosis) and viral (infectious salmon anaemia) diseases in farmed Atlantic salmon (Salmo salar)

被引：51

作者：

Odegard, Jorgen ^{[1
]}

Olesen, Ingrid

Gjerde, Bjarne

Klemetsdal, Gunnar

机构：

[1] Norwegian Univ Life Sci, Dept Anim & Aquaculture Sci, N-1432 As, Norway

[2] AKVAFORSK, Inst Aquaculture Res, N-1432 As, Norway

来源：

AQUACULTURE | 2007年 / 271卷 / 1-4期

关键词：

fish breeding; disease resistance; challenge-testing; furunculosis; infectious salmon anaemia; Atlantic salmon; Salmo salar; genetic analysis;

D O I：

10.1016/j.aquaculture.2007.06.006

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

A total of 237,085 individuals, from 2960 different full-sib families, from 11 year-classes, were tested for the bacterial disease furunculosis or viral infectious salmon anaemia (ISA). Challenge-testing for the two diseases was carried out on different individuals of the same full-sib families (106,136 and 130,949 individuals for furunculosis and ISA, respectively). A bivariate sire-dam threshold model was developed for joint analysis of the two traits. The estimated heritabilities for furunculosis and ISA were 0.43 (+/- 0.02) and 0.32 (+/- 0.02), respectively, while the genetic correlation was weakly positive (0.15 +/- 0.05). Common family (environmental and nonadditive genetic) effects were estimated for both traits and explained 11 and 5% of total underlying phenotypic variance in liability for furunculosis and ISA resistance, respectively. The estimated correlation between common family effects of the two traits was positive (0.31 +/- 0.07). (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：173 / 177

页数：5

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