Consulta: subjectFacets:"Gamete"
Registros recuperados: 3
Data/hora: 02/06/2024 08:37:33

Gamete quality in triploid Pacific oyster (Crassostrea gigas)
Provedor de dados: 5
Autores: Suquet, Marc; Malo, Florent; Quere, Claudie; Ledu, Christophe; Le Grand, Jacqueline; Benabdelmouna, Abdellah.
Triploidy induction in shellfish aims to obtain faster growth and sterility of reared individuals. Triploid Pacific oysters are most often not totally sterile, but have greatly reduced reproductive capacities compared to those recorded in diploid individuals. The description of gamete output in triploid aquatic animals is most often confined to the assessment of fecundity in females. The present work aims at further describing gamete quality of triploid Pacific oysters and comparing it to values observed in diploid individuals. Diploid and triploid oysters (produced by mating tetraploid males × diploid females) were reared in standard conditions and then transferred to the wild to allow the offspring to attain reproductive maturity. At the end of...
Tipo: Text
Palavras-chave: Crassostrea gigas; Reproduction; Triploidy; Gamete.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00277/38835/37581.pdf

The quality of great scallop (Pecten maximus) sperm after thawing
Provedor de dados: 5
Autores: Suquet, Marc; Gourtay, Clemence; Donval, Anne; Le Goic, Nelly; Quere, Claudie; Malo, Florent; Le Grand, Jacqueline; Ratiskol, Dominique; Mingant, Christian; Fauvel, Christian.
Most publications devoted to the cryopreservation of mollusc sperm have focused on the definition of technical protocols, avoiding the description of sperm quality after thawing. The present study investigated the effects of cryopreservation on sperm quality in the great scallop. Wild scallop were fished during the natural spawning period and conditioned in the hatchery before use. Sperm samples were obtained after intragonadal injection of serotonin and cryopreserved using a previously published protocol.  Sperm quality was assessed using a panel of four parameters: sperm motility characteristics, using a a computer assisted sperm analysis plugin with Image J, intracellular ATP content using an ATP-Lite kit, sperm integrity, using flow cytometry and sperm...
Tipo: Text
Palavras-chave: Pecten maximus; Reproduction; Gamete; Sperm; Cryopreservation.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00317/42862/43912.pdf

Review of the reproductive physiology of the scallop, Pecten maximus, applicable to intensive aquaculture
Provedor de dados: 5
Autores: Devauchelle, Nicole; Mingant, Christian.
This paper presents a summary of information on reproduction biology in the scallop, Pecten maximus, which is required for the successful reseeding and intensive aquaculture programs developed in France since 1982. Data are presented on the following subjects: environmental factors that sustain gametogenic activity and the time of year this activity occurs; biochemical changes that are associated with gametogenesis; the consistency of egg quality; and development of a simple test to predict egg quality.
Tipo: Text
Palavras-chave: Aquaculture; Pecten maximus; Ecloserie; Physiologie de la reproduction; Embryon; Gamète; Aquaculture; Pecten maximus; Scallop; Hatchery; Reproductive physiology; Egg quality; Embryo; Gamete.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00038/14890/12216.pdf