Abstract: The present invention provides methods for treating and preventing viral disease in farmed fish. In particular, the present invention relates to compositions and methods for improving heart health in farmed salmon.

Abstract: The present invention relates to a method for production of feed pellets comprising grinding of the raw materials prior to extrusion, and such pellets comprising 0-20 weight % carbohydrates, 30-45 weight % protein, 35-52 weight % lipid, 2.5-10 weight % water and the balance being water. The raw materials comprising 0-26 weight % carbohydrates, 30-70 weight % protein, 3-30 weight % lipid and 12-30 weight % water are ground to an average particle size of less than 0.25 mm. The pellets are a homogenous mixture of raw materials comprising 0-26 weight % carbohydrates, 30-70 weight % protein, 3-30 weight % lipid and 12-30 weight % water having an average particle size of less than 0.25 mm and having been extruded and coated with lipid constituting at least 75 weight % of the total lipid content of the pellets.