Purpose: This study aims to determine the stress response of snakehead fish fry given herbal probiotics in feed.
Method: The method used in this research is an experimental method by implementing a Completely Randomized Design (CRD)
Results: The stress response to the operculum opening parameters was 57 times/1 minute, survival was 71.11%, feed efficiency was 74.24%, and water quality with a temperature of 26 - 29oC and pH 6 - 8 showed the best results with this addition . . from a dose of 10 ml of probiotics into the feed.
Limitations: conducting research on snakehead fish using herbal probiotics 10 ml/kg
Contribution: Providing herbal probiotics in feed can stimulate fish appetite, increase fish immunity to disease and reduce fish stress levels against environmental changes, as well as stimulate the immune system and organ function related to the formation of blood cells.