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Abstract

Background: Accurate QTL mapping is a prerequisite in the search for causative mutations. Bayesian genomic selection models that analyse many markers simultaneously should provide more accurate QTL detection results than single-marker models. Our objectives were to (a) evaluate by simulation the...

Author(s)
Berg, I. van den; Fritz, S.; Boichard, D.
Publisher
BioMed Central Ltd, London, UK
Citation
Genetics, Selection, Evolution, 2013, 45, 19, pp (19 June 2013)
Abstract

Background: Milk quality in dairy cattle is routinely assessed via analysis of mid-infrared (MIR) spectra; this approach can also be used to predict the milk's cheese-making properties (CMP) and composition. When this method of high-throughput phenotyping is combined with efficient imputations of...

Author(s)
Sanchez, M. P.; Ramayo-Caldas, Y.; Wolf, V.; Laithier, C.; El-Jabri, M.; Michenet, A.; Boussaha, M.; Taussat, S.; Fritz, S.; Delacroix-Buchet, A.; Brochard, M.; Boichard, D.
Publisher
BioMed Central Ltd, London, UK
Citation
Genetics, Selection, Evolution, 2019, 51, 34, pp (1 July 2019)
Abstract

Marker-assisted selection (MAS) of young males of dairy cattle breeds to be progeny-tested can depend on when typing is carried out. Current versions are s-MAS where typing occurs after entering station and f-MAS where typing occurs earlier, on the farm. A new version might be e-MAS where embryos...

Author(s)
Colleau, J. J.; Fritz, S.; Ponsart, C.; Bourhis, D. le; Lacaze, S.; Tissier, M.; Mervant, G.; Amigues, Y.; Druet, T.; Malaeosse, A.; Boichard, D.; Humblot, P.
Publisher
Institut National de la Recherche Agronomique (INRA), Paris, France
Citation
15èmes Recontres autour des Recherches sur les Ruminants, Paris, les 3 et 4 décembre 2008, 2008, pp 427-430
Abstract

Background: With dense genotyping, many choices exist for methods to detect quantitative trait loci (QTL) in livestock populations. However, no across-species study has been conducted on the performance of different methods using real data. We compared three methods that correct for relatedness...

Author(s)
Legarra, A.; Croiseau, P.; Sanchez, M. P.; Teyssèdre, S.; Sallé, G.; Allais, S.; Fritz, S.; Moreno, C. R.; Ricard, A.; Elsen, J. M.
Publisher
BioMed Central Ltd, London, UK
Citation
Genetics, Selection, Evolution, 2015, 47, 6, pp (12 February 2015)
Abstract

Recently, the amount of available single nucleotide polymorphism (SNP) marker data has considerably increased in dairy cattle breeds, both for research purposes and for application in commercial breeding and selection programs. Bayesian methods are currently used in the genomic evaluation of dairy ...

Author(s)
Colombani, C.; Legarra, A.; Fritz, S.; Guillaume, F.; Croiseau, P.; Ducrocq, V.; Robert-Granié, C.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2013, 96, 1, pp 575-591
Abstract

Background: Genome-wide association studies (GWAS) were performed at the sequence level to identify candidate mutations that affect the expression of six major milk proteins in Montbéliarde (MON), Normande (NOR), and Holstein (HOL) dairy cattle. Whey protein (α-lactalbumin and β-lactoglobulin) and...

Author(s)
Sanchez, M. P.; Govignon-Gion, A.; Croiseau, P.; Fritz, S.; Hozé, C.; Miranda, G.; Martin, P.; Barbat-Leterrier, A.; Letaïef, R.; Rocha, D.; Brochard, M.; Boussaha, M.; Boichard, D.
Publisher
BioMed Central Ltd, London, UK
Citation
Genetics, Selection, Evolution, 2017, 49, 68, pp (18 September 2017)
Abstract

A QTL detection experiment was performed in French dairy cattle to search for QTL related to male fertility. Ten families, involving a total of 515 bulls, were phenotyped for ejaculated volume and sperm concentration, number of spermatozoa, motility, velocity, percentage of motile spermatozoa after ...

Author(s)
Druet, T.; Fritz, S.; Sellem, E.; Basso, B.; Gérard, O.; Salas-Cortes, L.; Humblot, P.; Druart, X.; Eggen, A.
Publisher
Blackwell Publishing, Berlin, Germany
Citation
Journal of Animal Breeding and Genetics, 2009, 126, 4, pp 269-277
Abstract

The purpose of this study was to map quantitative trait loci (QTL) influencing female fertility estimated by non-return rate (NRR) in the French dairy cattle breeds Prim'Holstein, Normande and Montbeliarde. The first step was a QTL detection study on NRR at 281 days after artificial insemination on ...

Author(s)
Jemaa, S. B.; Fritz, S.; Guillaume, F.; Druet, T.; Denis, C.; Eggen, A.; Gautier, M.
Publisher
Blackwell Publishing, Berlin, Germany
Citation
Journal of Animal Breeding and Genetics, 2008, 125, 4, pp 280-288

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