Phytochemical Applications in Sustainable Tilapia Aquaculture

The sustainable culture of Nile tilapia has increasingly turned to plant‐derived compounds, or phytochemicals, as eco-friendly alternatives to synthetic additives. Phytochemicals—such as saponins, flavonoids, phenolic acids and alkaloids—offer multifunctional benefits including growth promotion, feed‐efficiency enhancement and immune modulation. When incorporated into formulated feeds or administered as botanical extracts, these bioactive compounds can improve antioxidant status, bolster disease resistance and support optimal reproductive control. Notably, certain plant extracts enable monosex production without reliance on synthetic hormones, thereby reducing ecological risk and consumer concern. Research has demonstrated that judicious inclusion of herbal powders, seed meals and leaf extracts can elevate weight gain, specific growth rate and survival, while decreasing feed conversion ratio and oxidative damage. Such applications not only address the intensification challenges of tilapia farming—disease outbreaks, poor feed utilisation and off-target reproduction—but also align with global objectives for food security, environmental stewardship and sustainable livelihoods. Moving forward, refinement of extraction methods, dosage standardisation and mechanistic understanding of phytochemical action will be key to translating laboratory findings into scalable aquaculture practice.

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Phytochemical Applications in Sustainable Tilapia Aquaculture publication trend

The graph below shows the total number of articles in phytochemical applications in sustainable tilapia aquaculture across all publications each year (not limited to Nature Index journals).

Technical terms

Phytochemical: A biologically active compound produced by plants, including flavonoids, saponins, phenolics and alkaloids.

Monosex culture (Sex reversal): An aquaculture practice that induces a single-sex population, often via hormonal or phytochemical agents, to optimise growth and reproduction control.

Specific Growth Rate (SGR): The percentage increase in body weight per day, calculated as (ln(final weight) – ln(initial weight)) × 100 / number of days.

Feed Conversion Ratio (FCR): The mass of feed required to produce one unit of fish weight gain, a measure of feed efficiency.

Bioactive compound: A chemical constituent that exerts a physiological effect on organisms, often responsible for antioxidant, immunomodulatory or hormonal activities.

References

1. Review on the progress in the role of herbal extracts in tilapia culture. Cogent Food & Agriculture (2019).
2. Chemical composition of Tithonia diversifolia (Hemsl.) and its effect on growth performance, feed efficiency and metabolic biochemistry of juvenile hybrid tilapia Oreochromis mossambicus × Oreochromis niloticus. Notulae Botanicae Horti Agrobotanici Cluj-Napoca (2023).
3. Comparable to 17α- methyl testosterone, dietary supplements of Tribulus terrestris and Mucuna pruriens promote the development of mono-sex, all-male tilapia fry, growth, survival rate and sex-related genes (Amh, Sox9, Foxl2, Dmrt1). BMC Veterinary Research (2024).