Spawning manipulation, broodfish diet feeding and egg production in farmed Atlantic salmon

Published 2024

Publication details

Journal : Aquaculture , vol. 580 , p. 1–14 , 2024

International Standard Numbers :
Printed : 0044-8486
Electronic : 1873-5622

Publication type : Academic article

Contributors : Berge, Gerd Marit; Hamre, Kristin; Hansen, Tom Johnny; Hevrøy, Ernst Morten; Lein, Ingrid; Mommens, Maren; Næve, Ingun; Seim, Rudi R.; Skjærven, Kaja Helvik

Links :
DOI : doi.org/10.1016/j.aquaculture....
ARKIV : hdl.handle.net/11250/3114462

Research areas

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Summary

Atlantic salmon aquaculture relies on continuous supply of high quality eggs. Broodfish nutrition and manipulation of ovulation time (photoperiod and temperature) are key factors. The optimum feeding period with broodfish diet has not been investigated before. The present study examined how feeding period with broodfish diet (9 vs. 17 months) interacted with manipulation of ovulation time (early (Nov), normal (Dec), late (Feb)) on broodstock egg production capacity and egg quality in two-sea-winter female Atlantic salmon (∼12 kg). All groups were fed until June 2021 when they were transferred to tanks and starved until ovulation.