FN Archimer Export Format PT J TI Hatchery-scale trials using cryopreserved spermatozoa of black-lip pearl oyster, Pinctada margaritifera BT AF HUI, Belinda VONAU, Vincent MORICEAU, Jacques TETUMU, Roger VANAA, Vincent DEMOY-SCHNEIDER, Marina SUQUET, Marc LE MOULLAC, Gilles AS 1:1;2:1;3:1;4:1;5:1;6:2;7:3;8:1; FF 1:PDG-DOP-DCOP-AQUAPOL-LDHP;2:PDG-RBE-RMPF-EP;3:PDG-RBE-PFOM-ARN;4:PDG-RBE-RMPF-EP;5:PDG-RBE-RMPF-EP;6:;7:PDG-RBE-PFOM-PI;8:PDG-RBE-RMPF-EP; C1 IFREMER, Lab Domesticat Huitre Perliere, Ctr Pacifique, Taravao 98719, Tahiti, Fr Polynesia Univ Polynesie Francaise, CNRS, UMR EA4239, Lab Biodivers Terr & Marine, Faaa 98702, Tahiti, Fr Polynesia IFREMER, UMR Physiol & Ecophysiol Mollusques Marins 100, F-29840 Argenton En Landunvez, France C2 IFREMER, FRANCE UNIV POLYNESIE FRANCAISE, FRANCE IFREMER, FRANCE SI TAHITI BREST ARGENTON SE PDG-DOP-DCOP-AQUAPOL-LDHP PDG-RBE-RMPF-EP PDG-RBE-PFOM-ARN PDG-RBE-PFOM-PI IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 1.152 TC 18 UR https://archimer.ifremer.fr/doc/00040/15098/12446.pdf LA English DT Article DE ;Cryopreservation;Spermatozoa;Fertility;Larval rearing;Pearl oyster;Pinctada margaritifera AB Cryopreservation is a valuable tool for genetic improvement programs. Several bivalve mollusc species have already been the subject of such programs and the Tahitian black pearl oyster industry is now planning the development of selective breeding for desirable traits in Pinctada margaritifera. The ability to cryopreserve spermatozoa would, therefore, offer significant benefits to the cultured black pearl industry. Spermatozoa were cryopreserved with CPA 0.7 M trehalose in 0.8 M Me2SO and a two-step freezing process was used: straws were first maintained in nitrogen vapour for 10 minutes, then directly plunged into liquid nitrogen and stored for one week before use. The viability of thawed sperm was 23 % lower than that of fresh sperm. When using thawed sperm, therefore, a higher sperm/egg ratio of 100 000:1 was required to reach 80 % oocyte fertilization, compared with 100:1 for fresh sperm. Nevertheless, this first demonstration of cryopreserved sperm fertility in black pearl oyster confirms the hatchery applicability of the cryopreservation technique defined here. Monitoring for larval viability during the first 23 days of life revealed no significant differences between the progeny produced with cryopreserved sperm and that produced using fresh sperm. PY 2011 PD APR SO Aquatic Living Resources SN 0990-7440 PU Edp Sciences S A VL 24 IS 2 UT 000293593900014 BP 219 EP 223 DI 10.1051/alr/2011117 ID 15098 ER EF