Combination of photoperiod and temperature manipulation, and LHRHa treatment permits prolonged spawning of Atlantic salmon, Salmo salar

King H., Pankhurst N.

Published date: July 2008
Volume: 32
Number: 2 suppl.
Pagination: 194
Publisher: Société Française d'Ichtyologie

Female Atlantic salmon (Salmo salar) were exposed to a natural, or an advanced photoperiod from the austral summer solstice under natural or advanced temperature conditions, and injected with a commercial LHRHa preparation or vehicle. This created six photothermal- and LHRHa-treatment combinations, which generated a more than 4-fold increase in the total duration of the spawning period.

Keywords: Atlantic salmon - LHRHa - Ovulation - Photoperiod - Temperature
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