Journal of Aquaculture (한국양식학회지)

The Korean Society of Fisheries and Aquatic Science (한국양식학회)
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Effect of Phosphorus Supplemented Diet on Water Quality of Catfish Pond

  • Lee, Jeong-Yeol (Department of Marine Aquaculture and Biotechnology, Kunsan National University) ;
  • Boyd, Claude-E. (Department of Fisheries and Allied Aquaculture, Auburn University)
  • Published : 2001.06.01
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Abstract

Phosphorus is an essential element for growth and metabolism in fish. However high levels of phosphorus in the feed can lead to poor water quality of pond, and can also be a potential source of pollution, when pond water is released to the environment. In this study phosphorus supplemented diets containing 0.0, 0.9 or 1.9% of (dicalcium) phosphate were offered to channel catfish and changes in water quality of ponds and phosphorus levels in fish were measured. Higher level of (1.9%) supplementation of phosphorus in diet resulted in higher concentration of T-P and SRP in pond waters. Also it produced negative effects on fish production by lowering feed coefficient and rate of increment in body weight. Surplus phosphorus can affect fish growth and water quality of pond.

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References

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