Consulta: creatorFacets:"Quillet, Edwige"
Registros recuperados: 15
Data/hora: 01/06/2024 03:46:52

Assessment of Genetic Variability of Fish Personality Traits using Rainbow Trout Isogenic Lines
Provedor de dados: 5
Autores: Millot, Sandie; Pean, Samuel; Labbe, Laurent; Kerneis, Thierry; Quillet, Edwige; Dupont-nivet, Mathilde; Begout, Marie-laure.
The study of inter-individual variability of personality in fish is a growing field of interest but the genetic basis of this complex trait is still poorly investigated due to the difficulty in controlling fish genetic origin and life history. When available, isogenic lines that allow performing independent tests on different individuals having identical genotype constitute a very relevant experimental material to disentangle the genetic and environmental components of behavioural individuality. We took advantage of heterozygous isogenic lines to investigate the personality in rainbow trout through the analysis of their reactions to different experimental situations. To this end, seven to ten rainbow trout isogenic lines were screened for their spatial...
Tipo: Text
Palavras-chave: Personality; Isogenic lines; Genetic variability; Risk taking; Spatial exploration; Oncorhynchus mykiss.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00194/30496/29976.pdf

Variabilité génétique de la réponse aux organismes pathogènes : un outil pour améliorer la santé des mollusques et poissons d'élevage
Provedor de dados: 5
Autores: Quillet, Edwige; Boudry, Pierre; Lapegue, Sylvie.
Controlling health of livestock has become of considerable importance to the aquaculture industry. Selective breeding of animals with increased resistance to pathogens is likely to complete efficiently the use of drugs, vaccines or prophylactic approaches that may be difficult to implement. A review of the scientific literature shows that the prospect of selecting for increased resistance is quite hopeful in both molluscs and fish. Yet, selecting for disease resistance is hampered by the difficulty to measure the resistance of individuals. Prospects for the development of «markers» that would predict the genetic merit of individuals without pathogen challenge are presented. The breeding schemes that may be implemented for fish and molluscs in the French...
Tipo: Text
Palavras-chave: Marqueurs phénotypiques; Marqueurs génétiques; Poissons; Mollusques; Agents pathogènes; Variabilité génétique.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2979.pdf

Detection of new pathways involved in the acceptance and the utilisation of a plant-based diet in isogenic lines of rainbow trout fry
Provedor de dados: 5
Autores: Callet, Therese; Dupont-nivet, Mathilde; Cluzeaud, Marianne; Jaffrezic, Florence; Laloe, Denis; Kerneis, Thierry; Labbe, Laurent; Quillet, Edwige; Geurden, Inge; Mazurais, David; Skiba-cassy, Sandrine; Medale, Francoise.
o meet the growing demand of fish feed for aquaculture, an increasing proportion of marine ingredients are being replaced by blends of plant products. However, the total replacement of marine ingredients in salmonid diets impairs fish performance. This is particularly true during the early fry stage and this stage is therefore considered of particular importance. In rainbow trout (RBT), the existence of a genetic variability to survive and grow with plant-based diets devoid of marine ingredients has now been proved, but the mechanisms behind are little studied especially at early stage. To investigate these, we analysed the whole transcriptome of three isogenic lines of RBT fry, which have similar growth when fed a marine resources-based diet (M diet) but...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00452/56371/57969.pdf

Selection for Adaptation to Dietary Shifts: Towards Sustainable Breeding of Carnivorous Fish
Provedor de dados: 5
Autores: Le Boucher, Richard; Dupont-nivet, Mathilde; Vandeputte, Marc; Kerneis, Thierry; Goardon, Lionel; Labbe, Laurent; Chatain, Beatrice; Bothaire, Marie Josee; Larroquet, Laurence; Medale, Francoise; Quillet, Edwige.
Genetic adaptation to dietary environments is a key process in the evolution of natural populations and is of great interest in animal breeding. In fish farming, the use of fish meal and fish oil has been widely challenged, leading to the rapidly increasing use of plant-based products in feed. However, high substitution rates impair fish health and growth in carnivorous species. We demonstrated that survival rate, mean body weight and biomass can be improved in rainbow trout (Oncorhynchus mykiss) after a single generation of selection for the ability to adapt to a totally plant-based diet (15.1%, 35.3% and 54.4%, respectively). Individual variability in the ability to adapt to major diet changes can be effectively used to promote fish welfare and a more...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00107/21845/19429.pdf

Genetic variability of environmental sensitivity revealed by phenotypic variation in body weight and (its) correlations to physiological and behavioral traits
Provedor de dados: 5
Autores: Lallias, Delphine; Quillet, Edwige; Begout, Marie-laure; Auperin, Benoit; Khaw, Hooi Ling; Millot, Sandie; Valotaire, Claudiane; Kerneais, Thierry; Labbe, Laurent; Prunet, Patrick; Dupont-nivet, Mathilde.
Adaptive phenotypic plasticity is a key component of the ability of organisms to cope with changing environmental conditions. Fish have been shown to exhibit a substantial level of phenotypic plasticity in response to abiotic and biotic factors. In the present study, we investigate the link between environmental sensitivity assessed globally (revealed by phenotypic variation in body weight) and more targeted physiological and behavioral indicators that are generally used to assess the sensitivity of a fish to environmental stressors. We took advantage of original biological material, the rainbow trout isogenic lines, which allowed the disentangling of the genetic and environmental parts of the phenotypic variance. Ten lines were characterized for the...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00416/52769/53631.pdf

Are sex ratios in wild European sea bass (Dicentrarchus labrax) populations biased?
Provedor de dados: 5
Autores: Vandeputte, Marc; Quillet, Edwige; Chatain, Beatrice.
Sex ratios in farmed European sea bass are highly biased towards males (75 to 95%), which is problematic for aquaculture. In this mini-review, we re-analyse fisheries literature data about sex ratios in wild sea bass from 13 population samples, representing altogether 4889 individuals covering the major part of the distribution range of the species. We find that as a whole, the sex ratio of wild populations is biased towards females (59.4% females, p &lt; 0.001), but that the sex ratio of the younger fish (&lt; 30 cm total length) is balanced (52.0% females, p = 0.15), while the sex ratio of the older fish is heavily biased towards females (69.5% females, p &lt; 0.01). Possible causes of these differences (differential longevity, biased sampling) are...
Tipo: Text
Palavras-chave: Sex ratio; Genetics; Sex determination; Fish aquaculture; Dicentrarchus labrax.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00078/18882/16450.pdf

Economic values of growth and feed efficiency for fish farming in recirculating aquaculture system with density and nitrogen output limitations: a case study with African catfish (Clarias gariepinus)
Provedor de dados: 5
Autores: Besson, M.; Komen, H.; Aubin, J.; De Boer, I. J. M.; Poelman, M.; Quillet, Edwige; Vancoillie, C.; Vandeputte, Marc; Van Arendonk, J A M.
In fish farming, economic values (EV) of breeding goal traits are lacking, even though they are key parameters when defining selection objectives. The aim of this study was to develop a bioeconomic model to estimate EV of 2 traits representing production performances in fish farming: the thermal growth coefficient (TGC) and the feed conversion ratio (FCR). This approach was applied to a farm producing African catfish (Clarias gariepinus) in a recirculating aquaculture system (RAS). In the RAS, 2 factors could limit production level: the nitrogen treatment capacity of the biofilter or the fish density in rearing tanks at harvest. Profit calculation includes revenue from fish sales, cost of juveniles, cost of feed, cost of waste water treatment, and fixed...
Tipo: Text
Palavras-chave: Economic values; Feed conversion ratio; Fish farming; Recirculating aquaculture system; Selective breeding; Thermal growth coefficient.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00245/35593/34277.pdf

A first insight into genotype x diet interactions in European sea bass (Dicentrarchus labrax L. 1756) in the context of plant-based diet use
Provedor de dados: 5
Autores: Le Boucher, Richard; Vandeputte, Marc; Dupont-nivet, Mathilde; Quillet, Edwige; Mazurais, David; Robin, Jean; Vergnet, Alain; Medale, Francoise; Kaushik, Sadasivam; Chatain, Beatrice.
This preliminary study assessed genotype x diet interaction in late growth of European sea bass (Dicentrarchus labrax) fed with either a fish meal (FM)- or a fish oil (FO)-based diet (M) or an all-plant-based (PB) diet. A total of 550 fish from 224 families were reared together and tagged. DNA was sampled and microsatellites were used to assign parentage. When fish weight was 192 +/- 54 g, two tanks were fed with M (FM: 100%; FO: 100%) and two others with PB (FM: 0% and FO: 0%). Body weight (BW), fork length (FL) and fillet lipid content (CorrFat) were analysed with a linear model and with REML methodology. We observed no significant differences between groups, but a slightly lower (P=0.03) daily growth coefficient in sea bass fed PB than in those fed M....
Tipo: Text
Palavras-chave: Genotype by diet x environment interaction; European sea bass; Plant diet; Genetic correlation.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00032/14335/12374.pdf

Are there genotype-diet interactions for main production traits when fish are fed marine vs plant-based diets from the first meal ?
Provedor de dados: 5
Autores: Le Boucher, Richard; Quillet, Edwige; Vandeputte, Marc; Lecalvez, Jean Michel; Goardon, Lionel; Chatain, Beatrice; Medale, Francoise; Dupont Nivet, Mathilde.
Facing the finite size of fisheries resources, the important increase of aquaculture production during the last decades has led to the evolution of feed composition with an increasing substitution of fish meal and fish oil with terrestrial plant products. During the same period, selective breeding has been developed in fish and major improvements were achieved on growth, resulting in 4 to 20 % gain per fish generation (Olesen, Gjedrem, Bentsen et al. (2003); Chevassus, Quillet, Krieg et al. (2004)), and also on health and flesh quality traits.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00038/14908/12234.pdf

Selection for muscle fat content and triploidy affect flesh quality in pan-size rainbow trout, Oncorhynchus mykiss
Provedor de dados: 5
Autores: Lefevre, Florence; Cardinal, Mireille; Bugeon, Jerome; Labbe, Laurent; Medale, Francoise; Quillet, Edwige.
A lean muscle line (L) and a fat muscle line (F) of rainbow trout were established (Quillet et al., 2005) by a two-way selection for muscle lipid content performed on pan-size rainbow trout using a non-destructive measurement of muscle lipid content (Distell Fish Fat Meter®). The aim of the present study was to evaluate the consequences of this selective breeding on flesh quality of pan size (290 g) diploid and triploid trout after three generations of selection. Instrumental evaluations of fillet color and pH measurement were performed at slaughter. Flesh color, pH, dry matter content and mechanical resistance were measured at 48 h and 96 h postmortem on raw and cooked flesh, respectively. A sensorial profile analysis was performed on cooked fillets....
Tipo: Text
Palavras-chave: Flesh quality; Lipid content; Muscle fiber; Triploid; Fish; Texture.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00271/38246/36431.pdf

Improving feed efficiency in fish using selective breeding: a review
Provedor de dados: 5
Autores: De Verdal, Hugues; Komen, Hans; Quillet, Edwige; Chatain, Beatrice; Allal, Francois; Benzie, John A. H.; Vandeputte, Marc.
Improving feed efficiency (FE) is key to reducing production costs in aquaculture and to achieving sustainability for the aquaculture industry. Feed costs account for 30–70% of total production costs in aquaculture; much work has been done on nutritional and husbandry approaches to improve FE but only a limited amount of research has been devoted to using genetics, despite its potential. This paper reviews past work to improve FE in fish using selective breeding and assess future directions. Direct selection on FE traits requires methods to measure individual feed consumption and estimate FE efficiently and accurately. This is particularly difficult to do in fish because of the environment in which they live. Many of the published studies on FE were found...
Tipo: Text
Palavras-chave: Feed conversion ratio; Feed efficiency; Feed intake; Fish; Genetics; Selection.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00415/52675/53771.pdf

Genetic improvement of fish: Achievements and challenges for tomorrow
Provedor de dados: 5
Autores: Vandeputte, Marc; Baroiller, Jean-francois; Haffray, Pierrick; Quillet, Edwige.
Genetic improvement is a major contributing factor in developing efficient aquaculture, as it is in other forms of animal production. Moreover, as most fish species are only slightly domesticated, the potential gains are very large. Many of the current methods, developed during the XXth century, are classically used in livestock rearing (choice of breeds, crossbreeding, selective breeding). Others are much more specific to aquatic organisms (genetic control of sex, sterilization through triploidization). The spread of selected lines in aquaculture has been effective only since the 1990s, with lines selected essentially on growth and producing some impressive results. Transgenesis, although technically feasible on growth rate, is not used in practice and...
Tipo: Text
Palavras-chave: Selection; Genomics; Fishes; Breeding; Aquaculture.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6564.pdf

A first insight into genotype-diet interactions in European seabass (Dicentrarchus labrax) in the context of plant-based diet use
Provedor de dados: 5
Autores: Le Boucher, Richard; Vandeputte, Marc; Dupont Nivet, Mathilde; Quillet, Edwige; Mazurais, David; Robin, Jean; Vergnet, Alain; Medale, Francoise; Kaushik, Sadasivam; Chatain, Beatrice.
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00038/14907/12233.pdf

Genetic differences for behaviour in juveniles from two strains of brown trout suggest an effect of domestication history
Provedor de dados: 5
Autores: Benhaim, David; Guyomard, Rene; Chatain, Beatrice; Quillet, Edwige; Begout, Marie-laure.
Because captivity constitutes a drastic environmental change, domestication is expected to induce a rapid genetic selection for behavioural traits. In this study, we searched for genetic differences in behaviour among brown trout juveniles from two strains differing for their domestication history, i.e. an almost pure native wild Mediterranean population (W) and an Atlantic domesticated strain (D). In order to assess pure genetic differences among strains, males from the two origins were mated with Mediterranean females to produce two experimental crosses (WW and WD). The swimming activity characteristics of individual WW and WD juveniles were compared before and after the application of a stress (light switched off suddenly, followed by a 5-min period of...
Tipo: Text
Palavras-chave: Domestication; Genotyping; Microsatellite; Swimming activity; Restocking.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00152/26301/24409.pdf

Plant-based diet in trout (O. mykiss): are there genotype-diet interactions for main production traits when fish are fed marine vs plant-based diets from the first meal ?
Provedor de dados: 5
Autores: Le Boucher, Richard; Quillet, Edwige; Vandeputte, Marc; Le Calvez, J. M.; Goardon, L.; Chatain, Beatrice; Medale, Francoise; Dupont Nivet, Mathilde.
To face future decrease of marine resources, replacement of fishmeal and fish oil by plant products is nowadays worldwide priority for the aquaculture of carnivorous fish, especially salmonids. Genetic variability has been recently evidenced for growth ability on plant-based diet and pointed out potential genetic gains. In a context of fast feed evolution, this work compares heritabilities of growth parameters between rainbow trout fed with diet containing fish oil and fish meal and fish fed on diet devoid of marine products. Assessment of genotype diet interaction informs on potential family reranking between diets and potential consequences on current breeding programmes.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00015/12614/9493.pdf