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Updated: May 31, 2026
04:54
Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon
Published on: October 29, 2021
Phytate and phytase in fish nutrition
V Kumar1, A K Sinha, H P S Makkar
1Institute for Animal Production in the Tropics and Subtropics, University of Hohenheim, Stuttgart, Germany.
Journal of Animal Physiology and Animal Nutrition
|June 23, 2011
Summary
Phytase enzymes can improve phosphorus availability in fish feed, boosting growth and nutrient absorption while reducing environmental pollution. This review explores phytase
Area of Science:
- Aquaculture
- Animal Nutrition
- Biochemistry
Background:
- Phytate in plant-based fish feed binds phosphorus (P), making it unavailable to fish.
- This negatively impacts fish growth, nutrient utilization, and mineral uptake.
Purpose of the Study:
- To review the effects of phytate on fish.
- To discuss phytase as a solution for phytate-bound phosphorus in aquaculture.
Main Methods:
- Literature review on phytate, dephytinisation, and phytase.
- Analysis of phytase production, application, and bioefficacy in fish diets.
Main Results:
- Phytase effectively converts phytate-bound P to available P.
- Phytase enhances fish growth, nutrient utilization, and mineral bioavailability.
- Phytase reduces phosphorus pollution in aquatic environments.
Conclusions:
- Phytase is a promising tool for improving aquafeed sustainability and fish health.
- Further research is needed to optimize phytase use in diverse fish species.
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