A5025409400- Genetic and phenotypic traits in livestock
- Aquaculture Nutrition and Growth
- Agriculture and Rural Development Research
- Genetic Mapping and Diversity in Plants and Animals
- Insect and Pesticide Research
- Plant and animal studies
- Fish Ecology and Management Studies
- Insect and Arachnid Ecology and Behavior
- Aquaculture disease management and microbiota
- Animal Genetics and Reproduction
- Animal Nutrition and Physiology
- Ruminant Nutrition and Digestive Physiology
- Genetics and Plant Breeding
- Animal Behavior and Welfare Studies
- Physiological and biochemical adaptations
- Cancer-related molecular mechanisms research
- Reproductive Physiology in Livestock
- Agriculture Sustainability and Environmental Impact
- Effects of Environmental Stressors on Livestock
- Reproductive biology and impacts on aquatic species
- Genetic diversity and population structure
- Agricultural Economics and Policy
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Identification and Quantification in Food
- Fish Biology and Ecology Studies
Université Paris-Saclay
2016-2025
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2025
AgroParisTech
2013-2025
Université d'Avignon et des Pays de Vaucluse
2024-2025
Génétique Animale et Biologie Intégrative
2015-2024
Centre Île-de-France - Jouy-en-Josas - Antony
2020-2024
Association pour l'Utilisation du Rein Artificiel dans la région Lyonnaise
2022-2024
Syndicat des Sélectionneurs Avicoles et Aquacoles Français
2022
Institut National de la Recherche Agronomique
1998-2014
Département Génétique Animale
1995-2006
Genotyping with the medium-density Bovine SNP50 BeadChip® (50K) is now standard in cattle. The high-density BovineHD BeadChip®, which contains 777 609 single nucleotide polymorphisms (SNPs), was developed 2010. Increasing marker density increases level of linkage disequilibrium between quantitative trait loci (QTL) and SNPs accuracy QTL localization genomic selection. However, re-genotyping all animals chip not economically feasible. An alternative strategy to genotype part impute genotypes...
Selective breeding is a relatively recent practice in aquaculture species compared to terrestrial livestock. Nevertheless, the genetic variability of farmed salmonid lines, which have been selected for several generations, should be assessed. Indeed, significant decrease due high selection intensity could occurred, potentially jeopardizing long-term progress as well adaptive capacities populations facing change(s) environment. Thus, it important evaluate impact practices on diversity limit...
Despite massive research efforts, the molecular etiology of bovine polledness and developmental pathways involved in horn ontogenesis are still poorly understood. In a recent article, we provided evidence for existence at least two different alleles Polled locus identified candidate mutations each them. None these was located known coding or regulatory regions, thus adding to complexity understanding basis polledness. We confirm previous results here exhaustively identify causative mutation...
Disease outbreaks are a major threat to the aquaculture industry, and can be controlled by selective breeding. With development of high-throughput genotyping technologies, genomic selection may become accessible even in minor species. Training population size marker density among main drivers prediction accuracy, which both have high impact on cost selection. In this study, we assessed training as well accuracy disease resistance traits European sea bass (Dicentrarchus labrax) gilthead bream...
Abstract The aim of this study was to assess the potential consequences selection for less aggressive or active animals during handling by estimating genetic correlations between different criteria temperament and Limousin heifer breeding traits. Data consisted records collected from 1992 2004 at progeny test station AI sires. Six traits recorded same behavioural – so-called docility were considered describe heifer's temperament: aggressiveness against handler, running time number escapes...
The genetic determinism of the calving and suckling performance beef cows is little known whereas these maternal traits are major economic importance in cattle production systems. This paper aims to identify QTL regions candidate genes that affect Blonde d'Aquitaine breed. Three were studied: effect on score from field data, pelvic opening recorded station for primiparous cows. other related also analysed: weaning weight milk yield udder swelling A total 2,505 animals genotyped various chip...
Rainbow trout is a significant fish farming species under temperate climates. Female reproduction traits play an important role in the economy of breeding companies with sale fertilized eggs. The objectives this study are threefold: to estimate genetic parameters female traits, determine architecture these by identification quantitative trait loci (QTL), and assess expected efficiency pedigree-based selection (BLUP) or genomic for traits.
Abstract In the context of parentage assignment using genomic markers, key issues are genotyping errors and an absence parent genotypes because sampling, traceability or problems. Most likelihood‐based software programs require a priori estimates proportion missing parents to set up meaningful decision rules. We present here R package APIS, which can assign offspring their without any prior information other than parental genotypes, user‐defined, acceptable error rate among assigned...
One of the top priorities aquaculture industry is genetic improvement economically important traits in fish, such as those related to processing and quality. However, accuracy evaluations has been hindered by a lack data on from sufficiently large population animals. The objectives this study were thus threefold: (i) estimate parameters growth-, yield-, quality-related rainbow trout ( Oncorhynchus mykiss ) using three different phenotyping technologies [invasive non-invasive:...
Selective breeding is a promising solution to reduce the vulnerability of fish farms heat waves, which are predicted increase in intensity and frequency. However, limited information about genetic architecture acute hyperthermia resistance available. Two batches sibs from rainbow trout commercial line were produced: first (N = 1382) was phenotyped for at nine months age second 1506) main production traits (growth, body length, muscle fat content carcass yield) 20 age. Fish genotyped on 57 K...
Abstract An economically sustainable production of royal jelly (RJ) requires the use genetics specifically improved for this very demanding trait. The French Royal Jelly Association has developed since 2010 a selection plan that purpose, based on collective data recording system and initial seedstock five beekeepers. aim study was to evaluate efficiency breeding program, decade after its concrete start. We considered three different genetic models describe phenotypes, hereafter named Colony,...
Calving difficulty was analyzed under threshold and linear models considering either a fixed or random herd-year effect. The aim of the study to compare for predicting breeding values according size groups. When simulating data sets with small herds, in order obtain an unbiased evaluation nonrandom negative association sire herd effects, best model practical model. Field included 246,576 records largest Charolais herds France. Models were compared using correlations estimated between...
Stochastic simulation was used to compare the efficiency of 3 pig breeding schemes based on either traditional genetic evaluation or genomic evaluation. The simulated population contained 1,050 female and 50 male animals. It selected for 10 yr a synthetic goal that included 2 traits with equal economic weights heritabilities 0.2 0.4. reference scheme, named BLUP-AM, phenotyping all candidates (13,770 animals/yr) Trait 1 relatives from 10% litters (270 BLUP-Animal Model evaluations. Under...
The aim of this study was to find a simple measure for calf temperament discrimination, which can be useful as selection criterion on-farm French beef cattle breeding schemes. Behavioral records were registered at an average age 5 and 7 mo, respectively, 1,282 1,440 Limousin calves born in 24 farms between August 2007 April 2008. Measures repeated 810 the 2 ages. test procedure consisted individually restraining chute, then exposing them stationary human situated front chute 10 s. For every...