Dietary BmKn2-7 Supplementation Modulates Intestinal Microbiota and Hepatopancreatic Responses and Enhances Resistance to Vibrio parahaemolyticus in Litopenaeus vannamei

Background

Global expansion of Litopenaeus vannamei aquaculture has intensified the reliance on antibiotics for disease control, raising concerns about hepatotoxicity, microbiota dysbiosis and antimicrobial resistance. Synthesized scorpion venom-derived antimicrobial peptide BmKn2-7 is a promising alternative, but its efficacy and mechanisms as a dietary additive in shrimp remain unclear.