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Photoperiod control of puberty in farmed fish: Development of new techniques and research into underlying physiological mechanisms

Objective

Precocious puberty in farmed fish is a major constraint to aquacultural production efficiency. Currently, production losses in salmonid and sea bass industries are estimated to exceed 30 million Europe. An array of genetic, environmental, nutritional, hormonal and developmental factors influences puberty, but the exact determinants remain unclear. Artificial light, nutrition and genetic background can affect timing of puberty.

The main innovative aspect of the present study is to combine the possibilities provided by these determinants to generate groups with large differences in timing of puberty. These groups then serve to identify key components of the brain-pituitary-gonad (BPG) axis, i.e. reproductive hormones and their receptors, which control puberty.

Objectives
Controlling photopenod can be an effective way to prevent early sexual maturation.

Coordinator

INSTITUTE OF MARINE RESEARCH
Address
Nordnesgaten 50
Bergen
Norway

Participants (7)

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
France
Address
Campus De Beaulieu Bat.13
Rennes
CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
Spain
Address
Ribera De Cabanes
Torre De La Sal (Castellón)
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE CENTRE DE RECHERCHE DE RENNES
France
Address
Campus De Beaulieu Bâtiment 16
Rennes
UNIVERSITY OF BERGEN
Norway
Address
Hib, Thormøhlens Gate, 55 High Technology Center
Bergen
UNIVERSITY OF STIRLING
United Kingdom
Address
Airthrey Road
Stirling
UNIVERSITY OF UTRECHT
Netherlands
Address
Padualaan 8
Utrecht
UNIVERSITÉ DE RENNES I
France
Address
Campus De Beaulieu Av. Du Général Leclerc 263
Rennes