UTILIZATION OF SOME AQUATIC PLANTS IN DIET OF NILE TILAPIA, OREOCHROMIS NLOTICUS, FINGERLINGS | ||
| Egyptian Journal of Aquatic Biology and Fisheries | ||
| Article 2, Volume 1, Issue 2, June 1997, Pages 19-34 | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejabf.1997.3373 | ||
| Author | ||
| Mohamed Essa | ||
| National Institute of Oceanography and Fisheries, Kayet Bay, Alexandria, Egypt | ||
| Abstract | ||
| The present study was undertaken to evaluate the value and inclusion of some available aquatic plants in the diet of Nile tilapia, Oreochromis niloticus, fingerlings held in net-enclosures in frtilized earthen pond at El-Mex Research Station, National Institute of Oceanography and Fisheries, Alexandria. The plants chosen were pondweed (Potamogeton pectinatus); coontail (Ceratophylim demersum) and duckweed (Lemna lemna). Comparing the results revealed that: 1) no significant difference were found in percentage dry matter, crude protein and ether extract of fish carcass composition, fed different levels of aquatic plants (25% and 50%) in the diet, but ash percent was significantly increased as the proportion of aquatic plants increased in the diet; 2) the fish tend to have more protein and less ash when fed diet containing 25% and 50% duckweed or 25% pondweed; and 3) tilapia used feed very efficiently at a level of 50% of the standard diet by duckweed and 25% by coontail or pondweed without any significantly adverse effects on appetite, feed utilization and growth performance. | ||
| Keywords | ||
| Nile tilapia; aquatic diet | ||
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