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Genetic relationship between koi herpesvirus disease resistance and production traits inferred from sibling performance in Amur mirror carp 5
Zhao, Jinfeng; Prchal, Martin; Palaiokostas, Christos; Houston, Ross D.; Kause, Antti; Vandeputte, Marc; Vergnet, Alain; Bugeon, Jérôme; Bestin, Anastasia; Veselý, Tomáš; Pokorová, Dagmar; Piačková, Veronika; Pojezdal, Lubomír; Genestout, Lucie; Gela, David; Kroupová, Hana K.; Kocour, Martin.
Koi herpesvirus disease (KHVD) is currently the most serious threat to global carp farming. Prevention is a sensible strategy for tackling this disease and improved genetic resistance of carp strains is a desirable breeding goal. To study the potential for multitrait selection, the objective of the current study was to estimate the genetic correlations between KHVD resistance and production traits in Amur mirror carp. A total of 1500 fingerlings from four factorial crosses of five dams and ten sires were challenged with Koi herpesvirus (KHV). Juvenile growth-related traits were collected on the same individuals before the challenge test. Production traits were measured on siblings of the challenged population at different life stages (yearling to market...
Tipo: Text Palavras-chave: Common carp; KHVD; Body shape traits; Slaughter yields; Heritability; Genetic correlation.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00604/71623/70066.pdf
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Morphological predictors of slaughter yields using 3D digitizer and their use in a common carp breeding program 5
Prchal, Martin; Kocour, Martin; Vandeputte, Marc; Kause, Antti; Vergnet, Alain; Zhao, Jinfeng; Gela, David; Kašpar, Vojtěch; Genestout, Lucie; Bestin, Anastasia; Haffray, Pierrick; Bugeon, Jérôme.
Slaughter yields are traits of high interest especially for fish species sold in processed form like headless carcass or fillets, as well as with regard to increasing consumer preference for easy-to-prepare fish products. However, slaughter yields cannot be measured on live fish and thus their genetic improvement through mass selection is impossible. The usual alternatives are sib selection and/or indirect selection on correlated traits or morphological predictors of slaughter yields. In the present study, we assessed the possibility of using a combination of 3D digitized landmarks and ultrasound measurements in genetic improvement of slaughter yields in common carp. DNA – pedigreed market-size carp (n = 1553 fish) were produced from a partial factorial...
Tipo: Text Palavras-chave: Fillet yields; 3D predictors; Genetic parameters; Indirect selection; Breeding program.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00604/71625/70070.pdf
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Potential for Genetic Improvement of Resistance to Perkinsus olseni in the Manila Clam, Ruditapes philippinarum, Using DNA Parentage Assignment and Mass Spawning 5
Smits, Morgan; Enez, Florian; Ferraresso, Serena; Dalla Rovere, Giulia; Vetois, Emilie; Auvray, Jean-françois; Genestout, Lucie; Mahla, Rachid; Arcangeli, Giuseppe; Paillard, Christine; Haffray, Pierrick; Bargelloni, Luca.
The Manila clam Ruditapes philippinarum, a major cultured shellfish species, is threatened by infection with the microparasite Perkinsus olseni, whose prevalence increases with high water temperatures. Under the current trend of climate change, the already severe effects of this parasitic infection might rapidly increase the frequency of mass mortality events. Treating infectious diseases in bivalves is notoriously problematic, therefore selective breeding for resistance represents a key strategy for mitigating the negative impact of pathogens. A crucial step in initiating selective breeding is the estimation of genetic parameters for traits of interest, which relies on the ability to record parentage and accurate phenotypes in a large number of...
Tipo: Text Palavras-chave: Manila clam (Ruditapes philippinarum); Perkinsus olseni infection; Disease resistance; Genetic selection; Genetic parameter estimation.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00658/77031/78319.pdf
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Potential for Genetic Improvement of the Main Slaughter Yields in Common Carp With in vivo Morphological Predictors 5
Prchal, Martin; Bugeon, Jerome; Vandeputte, Marc; Kause, Antti; Vergnet, Alain; Zhao, Jinfeng; Gela, David; Genestout, Lucie; Bestin, Anastasia; Haffray, Pierrick; Kocour, Martin.
Common carp is a major aquaculture species worldwide, commonly sold alive but also as processed headless carcass or filets. However, recording of processing yields is impossible on live breeding candidates, and alternatives for genetic improvement are either sib selection based on slaughtered fish, or indirect selection on correlated traits recorded in vivo. Morphological predictors that can be measured on live fish and that correlate with real slaughter yields hence remain a possible alternative. To quantify the power of morphological predictors for genetic improvement of yields, we estimated genetic parameters of slaughter yields and various predictors in 3-year-old common carp reared communally under semi-intensive pond conditions. The experimental...
Tipo: Text Palavras-chave: Heritability estimates; Genetic correlations; Indirect selection; Morphological landmarks; Slaughter yields; Ultrasound imagery.
Ano: 2018 URL: http://archimer.ifremer.fr/doc/00451/56242/57806.pdf
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