Dragon fruit peel powder significantly improves farmed shrimp health and disease resistance when added to their feed. According to Gram Research analysis, shrimp receiving the highest dose of dragon fruit peel powder achieved 80% survival after bacterial infection, compared to only 35% survival in shrimp on regular feed. The additive also boosted growth performance, strengthened immune system markers, and improved digestive efficiency over a 10-week study period.
Researchers discovered that adding dragon fruit peel powder to shrimp feed dramatically improves the shrimp’s health, growth, and ability to fight disease. In a 10-week study, shrimp fed the highest dose of dragon fruit peel powder grew better, had stronger immune systems, and survived bacterial infections at much higher rates than shrimp on regular feed. This finding could help shrimp farmers produce healthier seafood while using natural ingredients instead of synthetic additives, making aquaculture more sustainable and environmentally friendly.
Key Statistics
A 10-week research study of 240 Pacific white shrimp found that those fed the highest dose of dragon fruit peel powder (6 grams per kilogram of feed) achieved 80% survival after exposure to harmful bacteria, compared to 35% survival in control shrimp.
Research on 60 shrimp per treatment group showed that dragon fruit peel powder supplementation significantly increased white blood cell counts, antibacterial protein activity, and antioxidant enzyme levels, with the strongest effects at the 6 grams per kilogram dose.
A 2026 study published in Developmental and Comparative Immunology demonstrated that shrimp receiving dragon fruit peel powder showed improved feed conversion efficiency and better digestive enzyme activity compared to control groups receiving no supplementation.
Dragon fruit peel powder improved hepatopancreas structural integrity in all supplemented shrimp groups and upregulated immune-related gene expression, including prophenoloxidase and lysozyme genes, compared to control shrimp.
The Quick Take
- What they studied: Whether adding dragon fruit peel powder to shrimp feed improves their growth, immune system strength, and ability to survive bacterial infections
- Who participated: 240 Pacific white shrimp (60 per group) with an average starting weight of about 4.2 grams, divided into four groups receiving different amounts of dragon fruit peel powder over 10 weeks
- Key finding: Shrimp receiving the highest dose of dragon fruit peel powder (6 grams per kilogram of feed) showed 80% survival after exposure to harmful bacteria, compared to only 35% survival in shrimp on regular feed
- What it means for you: Dragon fruit peel powder appears to be a natural, effective way to make farmed shrimp healthier and more disease-resistant. This could lead to safer seafood and reduce the need for antibiotics in shrimp farming, though more research in larger farms is needed to confirm these results
The Research Details
Scientists divided 240 shrimp into four equal groups of 60 shrimp each. Each group received a different diet: one group got regular feed with no dragon fruit peel (the control group), while the other three groups received feed mixed with increasing amounts of dragon fruit peel powder (2, 4, or 6 grams per kilogram of feed). All shrimp were fed these diets for 10 weeks under identical conditions. The researchers then measured how much the shrimp grew, how efficiently they converted feed into body weight, and how well their immune systems worked. They also tested whether the shrimp could survive exposure to a harmful bacterium called Vibrio parahaemolyticus, which commonly infects farmed shrimp.
Throughout the study, researchers collected blood samples to measure immune system markers like white blood cell counts and antibacterial proteins. They examined the shrimp’s digestive organs to see if the dragon fruit peel improved digestion. They also analyzed the shrimp’s genes to understand which immune and antioxidant genes were activated by the dragon fruit peel. This multi-layered approach allowed them to see not just whether the shrimp got healthier, but also how the dragon fruit peel was making them healthier.
This research approach is important because it goes beyond just measuring whether shrimp grow bigger. By examining immune markers, digestive enzymes, antioxidant levels, and gene expression, the researchers could prove that dragon fruit peel actually strengthens the shrimp’s internal defense systems rather than just providing extra calories. The bacterial challenge test was especially valuable because it shows real-world disease resistance, not just laboratory measurements. This comprehensive approach gives confidence that the benefits are genuine and meaningful for actual shrimp farming operations.
This study was well-designed with clear controls and adequate sample sizes per group (60 shrimp each). The researchers measured multiple outcomes using established scientific methods, which strengthens the reliability of their findings. However, the study was conducted in a controlled laboratory setting, so results may differ in actual farm conditions with different water quality, temperature, or stocking densities. The study lasted 10 weeks, which is a reasonable timeframe but doesn’t show long-term effects. The findings are published in a peer-reviewed scientific journal, meaning other experts reviewed the work before publication. To be most confident in these results, similar studies should be repeated by other research groups in real farm settings.
What the Results Show
Shrimp fed dragon fruit peel powder grew significantly larger and more efficiently than control shrimp. The highest dose group (6 grams per kilogram) showed the best results, with improved weight gain and better conversion of feed into body tissue. The shrimp’s survival rate also improved with dragon fruit supplementation, indicating the additive reduced stress and disease.
The immune system improvements were striking. Shrimp receiving dragon fruit peel had higher counts of white blood cells and elevated levels of lysozyme, a natural antibacterial protein. Their antioxidant defenses also strengthened, with increased activity of protective enzymes like superoxide dismutase and catalase. These changes suggest the dragon fruit peel activated multiple layers of the shrimp’s immune system.
When exposed to the harmful bacterium Vibrio parahaemolyticus, the differences became dramatic. Control shrimp (no dragon fruit peel) had only a 35% survival rate after bacterial infection. Shrimp receiving the highest dose of dragon fruit peel achieved 80% survival, more than doubling the survival rate. Even the lower doses (2 and 4 grams per kilogram) improved survival to 55% and 65% respectively, showing a clear dose-response relationship.
At the cellular level, the dragon fruit peel improved the structure and function of the hepatopancreas, the organ responsible for digestion and immune function in shrimp. Digestive enzyme activity increased significantly, meaning shrimp could break down and absorb nutrients more efficiently. Gene expression analysis confirmed that immune-related genes were turned on more strongly in shrimp receiving dragon fruit peel.
Blood chemistry improved substantially in shrimp receiving dragon fruit peel. Total protein, albumin, and globulin concentrations increased, indicating better nutritional status and protein metabolism. Liver enzyme markers (AST and ALT) decreased, suggesting reduced liver stress and better organ health. The shrimp’s body composition improved, with better proportions of protein and other essential nutrients. These findings indicate that dragon fruit peel doesn’t just boost immunity but improves overall metabolic health and nutrient utilization.
According to Gram Research analysis, this study aligns with growing evidence that natural plant-based feed additives can enhance aquaculture health outcomes. Previous research has shown that various fruit and vegetable byproducts contain compounds that strengthen immune function in fish and shrimp. This study is notable because dragon fruit peel, often discarded as waste, proves to be particularly effective. The magnitude of disease resistance improvement (more than doubling survival after bacterial challenge) is substantial compared to typical results from other natural additives. The comprehensive measurement of immune markers and gene expression provides stronger evidence than studies that only measure growth performance.
This study was conducted in a controlled laboratory environment with ideal water conditions, so results may differ in actual shrimp farms where water quality fluctuates and stocking densities are higher. The study lasted only 10 weeks, so long-term effects and safety of extended use are unknown. Only one bacterial species was tested, so effectiveness against other common shrimp pathogens remains unclear. The study used a specific shrimp species and size range, so results may not apply to other shrimp species or different life stages. The cost-effectiveness of dragon fruit peel powder compared to other additives or antibiotics was not evaluated. Finally, the study involved only 60 shrimp per group, which is adequate for research but smaller than commercial farm operations, so scaling up may reveal unexpected challenges.
The Bottom Line
Strong evidence supports using dragon fruit peel powder as a feed additive in shrimp aquaculture, with the 6 grams per kilogram dose showing the best results. Shrimp farmers should consider sourcing or producing dragon fruit peel powder as a sustainable alternative to synthetic additives or antibiotics. The additive appears safe based on this study, though long-term safety data would be valuable. Moderate confidence: these results are from a well-designed study but need confirmation in real farm settings before widespread adoption.
Shrimp farmers and aquaculture companies should care most about these findings, as they offer a practical way to improve shrimp health and reduce disease losses. Seafood consumers concerned about antibiotic use in aquaculture should care, since this natural additive could reduce antibiotic dependence. Environmental advocates should care because using agricultural waste (dragon fruit peels) as feed additive supports circular economy principles. Researchers studying aquaculture health should care as this work opens doors for testing other plant-based additives. People with shrimp allergies or sensitivities should not assume this changes anything about shrimp safety for them.
Growth improvements should be visible within 2 to 3 weeks of feeding dragon fruit peel powder, based on the 10-week study timeline. Immune system strengthening likely occurs gradually over the same period. Disease resistance benefits would only be apparent if shrimp are exposed to pathogens, but the immune markers suggest protection would develop within weeks. For commercial farms, the full economic benefit would take several months to assess, accounting for feed costs, growth rates, and reduced disease losses.
Frequently Asked Questions
Does dragon fruit peel powder actually make farmed shrimp healthier?
Research shows dragon fruit peel powder significantly strengthens shrimp immune systems and disease resistance. Shrimp receiving the additive had 80% survival after bacterial infection versus 35% in control shrimp, plus improved growth and digestive efficiency over 10 weeks.
How much dragon fruit peel should be added to shrimp feed?
The study found the optimal dose was 6 grams of dragon fruit peel powder per kilogram of feed. This dose produced the strongest improvements in growth, immune markers, and disease resistance compared to lower doses of 2 or 4 grams per kilogram.
Is dragon fruit peel powder safe for shrimp farming?
The 10-week study found no safety concerns with dragon fruit peel powder at doses up to 6 grams per kilogram. Shrimp showed improved organ health and no negative effects. However, long-term safety data from extended use in commercial farms would provide additional confidence.
Can dragon fruit peel powder replace antibiotics in shrimp farming?
This research suggests dragon fruit peel powder could reduce antibiotic dependence by strengthening natural disease resistance. The 80% survival rate after bacterial challenge is substantial, but more research in real farm conditions is needed before recommending it as a complete antibiotic replacement.
Where does dragon fruit peel powder come from for shrimp feed?
Dragon fruit peel is agricultural waste from fruit processing. Using it as shrimp feed additive converts waste into valuable product, supporting sustainable farming. Farmers would need to source or produce dried peel powder, which could come from local fruit processing facilities.
Want to Apply This Research?
- If tracking shrimp farm health, measure and log weekly weight gain, survival rate, and feed conversion ratio for shrimp receiving dragon fruit peel powder versus control groups. Compare these metrics monthly to establish whether the additive is delivering expected improvements in your specific farm conditions.
- Aquaculture managers should implement a trial period: source or produce dragon fruit peel powder, mix it into feed at the recommended 6 grams per kilogram rate, and feed it to a subset of shrimp ponds while maintaining control ponds on regular feed. Track growth, survival, and disease incidence over 8 to 10 weeks to determine if results match this research in your farm environment.
- Establish a long-term tracking system that measures shrimp growth rate, feed conversion efficiency, and disease outbreak frequency monthly. Compare ponds receiving dragon fruit peel powder to control ponds over multiple production cycles (6 to 12 months) to confirm consistent benefits and identify any seasonal variations or unexpected issues.
This research demonstrates promising results for dragon fruit peel powder as a shrimp feed additive in controlled laboratory conditions. However, results were obtained from a single 10-week study with 60 shrimp per group and have not yet been confirmed in large-scale commercial farm operations. Before implementing this additive in commercial shrimp farming, consult with aquaculture specialists and conduct pilot trials in your specific farm conditions, as results may vary based on water quality, temperature, stocking density, and other environmental factors. This information is for educational purposes and should not replace professional aquaculture management advice. Always follow local regulations regarding feed additives and aquaculture practices.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.