Potential impact of L-threonine and encapsulated butyric acid (ButiPEARL) on growth performance, serum biomarkers, intestinal histomorphometry and economic indices of Nile tilapia fingerlings

The inclusion of L-threonine (0.48g/kg) and encapsulated butyric acid (ButiPEARL) (0.3g/kg) in fish diets can serve as safe, natural, and cost-effective feed additives. It is recommended to use a combined inclusion level of these additives to enhance growth, boost immunity, support liver function, and promote intestinal development. Future research to evaluate the advantages of a dietary combination of encapsulated butyric acid and L-threonine at varying doses in aquaculture is encouraged by the findings of this investigation. However, additional research is required to ascertain these compounds' potential impact on other fish species.