A5080905505- Genetic and phenotypic traits in livestock
- Aquaculture Nutrition and Growth
- Genetic Mapping and Diversity in Plants and Animals
- Fish Ecology and Management Studies
- Aquaculture disease management and microbiota
- Animal Behavior and Welfare Studies
- Milk Quality and Mastitis in Dairy Cows
- Genetic diversity and population structure
- Animal Nutrition and Physiology
- Genetics and Plant Breeding
- Gene expression and cancer classification
- Fish Biology and Ecology Studies
- Invertebrate Immune Response Mechanisms
- Effects of Environmental Stressors on Livestock
- Reproductive biology and impacts on aquatic species
- Reproductive Physiology in Livestock
- Meat and Animal Product Quality
- Wheat and Barley Genetics and Pathology
- Animal Virus Infections Studies
- Cancer-related molecular mechanisms research
- Isotope Analysis in Ecology
- Identification and Quantification in Food
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Parasite Biology and Host Interactions
- Microbial infections and disease research
Norwegian University of Life Sciences
2012-2024
AquaGen (Norway)
2015-2024
Fafo Foundation
2009-2023
Nofima
2009-2023
University of Oslo
2009
Norwegian Institute for Nature Research
2009
Akvaforsk Genetics Center (Norway)
2007-2008
Resistance against specific diseases affecting aquaculture species often show moderate to high heritabilities, and there is thus a large potential for genetic improvement. However, evaluation of disease resistance based on survival under challenge testing still face some challenges that may complicate both recording statistical analysis resistance, e.g., susceptibility time until death be different aspects or an inadequate measure resistance. Hence, diseases, more advanced modelling and/or...
Abstract Infectious pancreatic necrosis virus (IPNV) is the cause of one most prevalent diseases in farmed Atlantic salmon (Salmo salar). A quantitative trait locus (QTL) has been found to be responsible for genetic variation resistance virus. Here we describe how a linkage disequilibrium-based test deducing QTL allele was developed, and it used produce IPN-resistant salmon, leading 75% decrease number IPN outbreaks farming industry. Furthermore, whole-genome sequencing individuals with...
Understanding genetic architecture is essential for determining how traits will change in response to evolutionary processes such as selection, drift and/or gene flow. In Atlantic salmon, age at maturity an important life history trait that affects factors survival, reproductive success, and growth. Furthermore, can seriously impact aquaculture production. Therefore, characterizing the underlies variation of key interest.Here, we refine our understanding male salmon using a genome-wide...
To study genetic variation in meat quality traits measured by rapid methods, data were recorded between 2005 and 2008 on samples of M. longissimus dorsi (LD) Landrace (n = 3838) Duroc 2250) pigs included the Norwegian pig breeding scheme. In addition, ultimate pH levels glycolytic LD (loin muscle) gluteus medius (GM, ham muscle), oxidative m. profundus (GP, as an extended set 16 732 n 7456 for Duroc, respectively) from 1998 to 2008. Data analysed with a multi-trait animal model using AI-REML...
With the advent of genomic selection, alternative relationship matrices are used in animal breeding, which vary their coverage distant relationships due to old common ancestors. Relationships based on pedigree (A) and linkage analysis (G LA ) cover only recent because limited depth known pedigree. identity-by-state (G) include up age SNP (single nucleotide polymorphism) mutations. We hypothesised that latter were too old, since QTL (quantitative trait locus) mutations for traits under...
In this study, computed tomography (CT) technology was used to measure body composition on live pigs for breeding purposes. Norwegian Landrace (L; n = 3835) and Duroc (D; 3139) boars, selection candidates be elite boars in a programme, were CT-scanned between August 2008 2010 as part of an ongoing testing programme at Norsvin's boar test station. Genetic parameters the growth rate muscle (MG), carcass fat (FG), bone (BG) non-carcass tissue (NCG), from birth ∼100 kg weight, calculated CT...
GBLUP (genomic best linear unbiased prediction) uses high-density single nucleotide polymorphism (SNP) markers to construct genomic identity-by-state (IBS) relationship matrices. However, identity-by-descent (IBD) relationships can be accurately calculated for extremely sparse markers. Here, we compare the accuracy of prediction genome-wide breeding values (GW-BV) a sib-evaluated trait in typical aquaculture population, assuming either IBS or IBD matrices, and by varying marker density size...
Genomic selection methods require dense and widespread genotyping data, posing a particular challenge if both sexes are subject to intense (e.g., aquaculture species). This study focuses on alternative low-cost genomic (IBD-GS) that use selective with sparse marker panels estimate identity-by-descent relationships through linkage analysis. Our aim was evaluate the potential of these in programs for continuous traits measured sibs candidates typical breeding population. Phenotypic data were...
Genetic selection of disease resistant fish is a major strategy to improve health, welfare and sustainability in aquaculture. Mapping single nucleotide polymorphisms (SNP) the genome may be fruitful tool define relevant quantitative trait loci (QTL) we here show its use for characterization Vibrio anguillarum rainbow trout ( Oncorhynchus mykiss ). Fingerlings were exposed pathogen V. serotype O1 solution 1.5 × 10 7 cfu/ml observed 14 days. Disease signs appeared 3 days post exposure (dpe)...