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Effect of different levels of phosphorus on growth and mineralization in African giant catfish Heterobranchus bidorsalis (Geoffrey Saint Hillarie, 1809

Department of Pure & Industrial Chemistry, University of Port Harcourt
Publication Date
  • Design


Eleven diets (D1-D11), designated as treatments (T1-T11), supplemented with different levels of inorganic phosphorus (P) (Ca2PO4) were fed to Heterobranchus bidorsalis (10.8 ±0.02 g) to determine the optimum P requirement. D1 - D11 contained total P of 10.2, 10.4, 11.0, 11.9, 12.3, 12.6, 13.4, 13.9, 14.2 14.7 and 15.4 g kg-1 respectively. After 84 days of feeding trial, there was increase in fish growth up to T5 with 12.3g P kg-1 diet, followed by consistent decline in growth towards T11 with the highest P content. However, fish in T5 had the best (P

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