Feed program calculates optimum pigment from smolt to harvest

摘要

The new OptiColour feed calculation program, developed by Skretting Aquaculture Research Centre (ARC), provides guidelines for feeding from smolt transfer to the desired pigmentation at harvest. Anita Viga, Skretting Norway marketing manager, explained the process: "We gathered a substantial body of data on feed pigment levels and fish colour in cooperation with customers over several years, with both spring and autumn smolts. The data show there are important differences in how the pigment is takenup. Skretting ARC and Akvaforsk developed a hypothesis that could be tested in trials, then used the trial results to develop the OptiColour model. The OptiColour pigment recommendations take biology, production conditions and economics into account. That means lower production costs and more consistent colour."