Aquapreneur » farmed cod http://www.aquapreneur.com Fri, 03 Feb 2012 17:47:28 +0000 en hourly 1 http://wordpress.org/?v=3.1 Improving the Growth Rate of Farmed Cod with New Lighting Technology http://www.aquapreneur.com/2008/02/11/improving-the-growth-rate-of-farmed-cod-with-new-lighting-technology/ http://www.aquapreneur.com/2008/02/11/improving-the-growth-rate-of-farmed-cod-with-new-lighting-technology/#comments Mon, 11 Feb 2008 22:26:21 +0000 Admin http://www.aquapreneur/?p=64 Cod held in intensive culture typically mature within 2 years from hatching, with reduced somatic growth rates, deterioration of flesh composition and reduction of wet weight by at least 25%. A delay or cessation of maturation during on-growing is therefore crucial for profitable farming. The advent of a new lighting technology based on Cold Cathode Light Tubes enables fish farmers to improve the growth rate of farmed cod significantly. Overlaying of artificial illumination on the natural day-night cycle in day length masks this seasonally changing signal and has been shown to successfully regulate maturation in a number of tank-based studies in Atlantic cod in which a complete cessation of maturation and up to a subsequent 60% improvement in growth have been observed.

The CODLIGHT-TECH project is an EU-project involving parties from several European countries: MATIS – Food Research, Innovation & Safety and various fish farming companies in Iceland; The University of Stirling and Johnsons Sea Farms in Scotland; Institute of Marine Research (Havforskningsinstitutet) in Bergen, Fjord Marin and Intravision Group in Norway and; The Swedish University of Agricultural Science in Uppsala, Sweden.

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