METHOD FOR PREVENTING EPIDEMICS OF FISHES

摘要

PROBLEM TO BE SOLVED: To provide a method for enhancing a prevention ability of epidemics of fishes inexpensively and conveniently.SOLUTION: A method for preventing epidemics of fishes of the invention comprises administering to fishes a feed, which contains high-protein rapeseed meal and fish meal with a protein content of 40 to 50%, and in which the high-protein rapeseed meal to the total amount of the high-protein rapeseed meal and the fish meal is 10-50% by weight, to enhance the epidemic ability of the fishes. According to the invention, particularly bactericidal activity of blood serum is enhanced from a young fish or fry stage.