Ginkgo Biloba Extract Boosted Nile Tilapia Growth
Researchers found that specific dietary levels of Ginkgo biloba leaf extract improved growth and immunity in fish.
Updated on Oct. 5, 2026 in Nutrition
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In a 98-day feeding trial, scientists evaluated the impact of Ginkgo biloba leaf extract (GBLE) on Nile tilapia. The study sought sustainable alternatives to in-feed antibiotics in aquaculture.
Why it matters
The findings explore natural dietary supplements to improve aquaculture health and growth efficiency. This research aims to provide alternatives to conventional in-feed antibiotics used in commercial fish farming.
A 98-day randomized trial tested five GBLE concentrations ranging from 0 to 24 g/kg on Nile tilapia with an initial weight of 8.39 g. Results showed improved growth and antioxidant status at optimal levels, though these preliminary findings await validation in commercial settings.
The details
GBLE supplementation enhanced the activity of digestive enzymes, including amylase, lipase, and protease, which likely improved nutrient utilization. The extract also increased hemoglobin concentrations and lymphocyte percentages, suggesting a boost to the fish immune system. Notably, hepatic sections revealed no signs of inflammation or necrosis in the supplemented groups, indicating the extract was well-tolerated at the tested levels.
Timeline
The feeding trial lasted for a total of 98 days.
Health Landscape
The global aquaculture industry is increasingly shifting toward botanical additives to replace traditional in-feed antibiotics. This study contributes to the growing evidence base for using natural compounds to manage livestock health.
While these findings focus on aquaculture, they reflect ongoing efforts to improve food quality through sustainable farming practices. Consumers interested in the origins of their protein can follow advancements in antibiotic-free production standards.
The takeaway
Ginkgo biloba leaf extract shows potential as a growth-promoting and immune-boosting supplement in aquaculture. Future practical trials will be necessary to determine if these results can be successfully replicated outside of a laboratory environment.
Further reading
Learn more about the role of plant-based interventions in our Nutrition section.
More information
Read the full peer-reviewed research study for more details.
Source note: This article includes information reported by Nature.
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Should the aquaculture industry prioritize natural phytogenic feed additives over traditional antibiotic growth promoters?
