Effects of dietary humic acid supplementation on gut microbiota of Nile tilapia (Oreochromis niloticus)

Aquaculture is a cornerstone in protein production with the cultivation of Nile tilapia (Oreochromis niloticus), but it has faced challenges from pathogens such as the emerging bacterium Lactococcus garvieae. Humic acid (HA) has been used as antimicrobial and immunostimulant and to evaluate its effect on the intestinal microbiota.