Investigation into the probable use of water hyacinth (Eichornia Crassipes) in tilapia feed formulation.
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The possibility of wholly or partially replaced wheat offals with dried water hyacinth meal in the diets of Tilapia zillii fingerlings was investigated. Four diets, A, B., C and D were formulated. Diet A contain 45% wheat offal in addition to fishmeal and soyabean meal as sources of protein. B and C were diets in which 100% and 50% of the wheat offals were replaced by dried water hyacinth meal respectively. Diet D had 80% water hyacinth meal and an additional 18% Casein as the only other source protein. Results of four weeks feeding trial showed that Tilapia zillii fingerlings would not ingest diet D containing 80% water hyacinth meal without the addition of fishmeal. Water hyacinth meal could not wholly replace wheat offals in Tilapia diets unless at a level of 23% of the total diet.
- Technical Report