Daniel Guémené - Academia.edu (original) (raw)
Uploads
Papers by Daniel Guémené
HAL (Le Centre pour la Communication Scientifique Directe), Jun 8, 2004
HAL (Le Centre pour la Communication Scientifique Directe), Nov 13, 2013
HAL (Le Centre pour la Communication Scientifique Directe), 2007
HAL (Le Centre pour la Communication Scientifique Directe), Aug 25, 2018
National audienc
HAL (Le Centre pour la Communication Scientifique Directe), Sep 9, 2019
INRA productions animales, May 6, 2020
Aquaculture, Jul 1, 2021
Abstract Aquaculture is presently the only sustainable way of enhancing sturgeon caviar productio... more Abstract Aquaculture is presently the only sustainable way of enhancing sturgeon caviar production as the use of wild stocks is banned throughout the world. Hence sustainable management and efficient genetic improvement of domesticated populations are major challenges for the development of farmed caviar. We estimated genetic parameters of caviar yields and quality traits (size, color and firmness) in the polyploid Siberian sturgeon A. baerii, one of the major sturgeon species farmed for meat and caviar worldwide. This study was performed in commercial breeding conditions, where two factorial mating plans were created to produce 77 families. Larvae were pooled at hatching and reared in common environment until the age of caviar production. We phenotyped 494 females, which were successfully assigned to their parents with microsatellite markers using a newly developed software, designed to manage genotypes with varying ploidy levels, up to 8 N. The genetic parameters were estimated using heteroscedastic multi-trait BLUP animal models. Heritability of body weight, ovary weight, caviar weight, caviar (egg) size, caviar yield, caviar firmness and caviar color were moderate to high (0.13 to 0.66) depending on the trait. Moderate negative genetic correlations were estimated between growth and caviar yields (−0.28 to −0.37) while genetic correlations between caviar (egg) size and caviar yield were more negative (−0.70 to −0.76). These results provide favorable grounds to improve the efficiency of farmed caviar production by selective breeding.
HAL (Le Centre pour la Communication Scientifique Directe), Aug 23, 2010
HAL (Le Centre pour la Communication Scientifique Directe), Mar 25, 2009
HAL (Le Centre pour la Communication Scientifique Directe), Jul 15, 2018
HAL (Le Centre pour la Communication Scientifique Directe), Mar 9, 2022
HAL (Le Centre pour la Communication Scientifique Directe), Jun 21, 2015
HAL (Le Centre pour la Communication Scientifique Directe), 2018
HAL (Le Centre pour la Communication Scientifique Directe), Sep 7, 2011
HAL (Le Centre pour la Communication Scientifique Directe), Aug 23, 2010
HAL (Le Centre pour la Communication Scientifique Directe), Aug 23, 2010
HAL (Le Centre pour la Communication Scientifique Directe), Oct 20, 2005
HAL (Le Centre pour la Communication Scientifique Directe), Mar 31, 1996
HAL (Le Centre pour la Communication Scientifique Directe), Jun 26, 2017
HAL (Le Centre pour la Communication Scientifique Directe), Sep 2, 2019
HAL (Le Centre pour la Communication Scientifique Directe), Jun 8, 2004
HAL (Le Centre pour la Communication Scientifique Directe), Nov 13, 2013
HAL (Le Centre pour la Communication Scientifique Directe), 2007
HAL (Le Centre pour la Communication Scientifique Directe), Aug 25, 2018
National audienc
HAL (Le Centre pour la Communication Scientifique Directe), Sep 9, 2019
INRA productions animales, May 6, 2020
Aquaculture, Jul 1, 2021
Abstract Aquaculture is presently the only sustainable way of enhancing sturgeon caviar productio... more Abstract Aquaculture is presently the only sustainable way of enhancing sturgeon caviar production as the use of wild stocks is banned throughout the world. Hence sustainable management and efficient genetic improvement of domesticated populations are major challenges for the development of farmed caviar. We estimated genetic parameters of caviar yields and quality traits (size, color and firmness) in the polyploid Siberian sturgeon A. baerii, one of the major sturgeon species farmed for meat and caviar worldwide. This study was performed in commercial breeding conditions, where two factorial mating plans were created to produce 77 families. Larvae were pooled at hatching and reared in common environment until the age of caviar production. We phenotyped 494 females, which were successfully assigned to their parents with microsatellite markers using a newly developed software, designed to manage genotypes with varying ploidy levels, up to 8 N. The genetic parameters were estimated using heteroscedastic multi-trait BLUP animal models. Heritability of body weight, ovary weight, caviar weight, caviar (egg) size, caviar yield, caviar firmness and caviar color were moderate to high (0.13 to 0.66) depending on the trait. Moderate negative genetic correlations were estimated between growth and caviar yields (−0.28 to −0.37) while genetic correlations between caviar (egg) size and caviar yield were more negative (−0.70 to −0.76). These results provide favorable grounds to improve the efficiency of farmed caviar production by selective breeding.
HAL (Le Centre pour la Communication Scientifique Directe), Aug 23, 2010
HAL (Le Centre pour la Communication Scientifique Directe), Mar 25, 2009
HAL (Le Centre pour la Communication Scientifique Directe), Jul 15, 2018
HAL (Le Centre pour la Communication Scientifique Directe), Mar 9, 2022
HAL (Le Centre pour la Communication Scientifique Directe), Jun 21, 2015
HAL (Le Centre pour la Communication Scientifique Directe), 2018
HAL (Le Centre pour la Communication Scientifique Directe), Sep 7, 2011
HAL (Le Centre pour la Communication Scientifique Directe), Aug 23, 2010
HAL (Le Centre pour la Communication Scientifique Directe), Aug 23, 2010
HAL (Le Centre pour la Communication Scientifique Directe), Oct 20, 2005
HAL (Le Centre pour la Communication Scientifique Directe), Mar 31, 1996
HAL (Le Centre pour la Communication Scientifique Directe), Jun 26, 2017
HAL (Le Centre pour la Communication Scientifique Directe), Sep 2, 2019