Antibacterial agents for marine pathogenic bacteria and their use in the ocean.One aspect of the present invention is an antibacterial agent for marine pathogenic bacteria that use the extract of the sea cucumber extract as an active ingredient.In one aspect of the present invention, an antimicrobial agent is contacted to the marine fish, which would like to prevent the onset of infectious disease caused by marine pathogenic bacteria.One aspect of the present invention is a feed of marine fish with an antimicrobial agent.One aspect of the present invention is a method for producing marine fish using antibacterial agents.In one aspect of the present invention, a feed containing an antimicrobial agent is fed into the marine fish, which is intended to prevent the occurrence of an infectious disease caused by marine pathogenic bacteria, during the breeding in the ocean.No selection【課題】海洋病原細菌に対する抗菌剤とその海洋での利用を提供すること。【解決手段】本発明の一態様はクマザサエキスを有効成分とする海洋病原細菌に対する抗菌剤である。本発明の一態様において、海洋病原細菌による感染症の発症を予防させたい海洋魚類に、抗菌剤を、海洋で飼育中に接触させる。本発明の一態様は、抗菌剤が混合された、海洋魚類の飼料である。本発明の一態様は、抗菌剤を用いた海洋魚類の生産方法である。本発明の一態様では、海洋病原細菌による感染症の発症を予防させたい海洋魚類に、抗菌剤が混合された飼料を、海洋で飼育中に摂取させる。【選択図】なし
