Evaluering av stivelsesnivåer ved vintertemperaturer i ytelsen til postsmolt laks

Offentlig prosjektsammendrag

There is a big gap in the literature focussed on salmon nutritional trials, on feeding and performance at winter temperatures. However, sea temperature profile in some of the important production areas in Norway face those lower temperatures for quite a few months each production cycle. Therefore, it is important to increase the knowledge on winter nutritional requirements to secure not only optimal performance but also robustness of our fish. From those very few papers performed at low temperatures, it was found that high levels of starch as well as lower digestibility of certain raw materials, mainly plant meals, in salmon diets, could play a detrimental role in performance. Since the levels of plant meals increased in commercial diets and will potentially increase further to complain with more sustainable schemes, we performed a trial following those concepts to optimise the current offer of winter feeds to secure optimal performance in salmon in cold water.