Method of culturing Paralichthys olivaceus for suppression of sexual maturation

摘要

The present invention relates to a culturing method of Paralichthys olivaceus to suppress sexual maturation, which is characterized in using reproductive physiological characteristics of Paralichthys olivaceus. The culturing method of Paralichthys olivaceus to suppress sexual maturation using a photoperiodic adjustment method according to the present invention is able to effectively suppress the sexual maturation of Paralichthys olivaceus by adjusting the photoperiod of a fish farm for 12 hours or more for the entire breeding period, which promotes body growth of cultured Paralichthys olivaceus to produce Paralichthys olivaceus with good marketability, and are able to be widely used in Paralichthys olivaceus culture business. Furthermore, the culturing method of Paralichthys olivaceus to suppress sexual maturation does not use artificial hormone formulations, is environmentally friendly, and is not a method that gives stress to the Paralichthys olivaceus, which has the advantage of causing no environmental pollution. [Reference numerals] (AA) Gonadosomatic index; (BB) Natural photoperiod treated group; (CC) Long photoperiod treated group (14L/10D); (DD) Start of experiment; (EE) End of experiment