International Journal of Fisheries and Aquatic Studies
2020, Vol. 8, Issue 1, Part C
Evaluation of water hyacinth (Eichhornia crassipes) as a phytogenic diet for Nile tilapia (Oreochromis niloticus)Author(s):
Derribew Hailu, Alemayehu Negassa and Birhanu KebedeAbstract:
Water Hyacinth (Eichhornia crassipes) was cited among the major invasive plants currently threatening aquatic biodiversity in many parts of the world including Ethiopian freshwater lakes like Tana, Koka, and others which calls for an effective solution. Conversely, the replacement of fishmeal with locally available and cheaper plant feedstuffs is proved to be very essential for sustainable aquaculture. This study was conducted to assess the possibility of changing Water hyacinth collected from Lake Koka during January 2019 as fish feed. After analysis for its proximate composition, water hyacinth was mixed with fish meal, nug cake and wheat bran at 15%, 30%, 45% and 0% for treatment one, treatment two, treatment three and control group with equal isonitrogenous and isocaloric value of 32.2%CP and 376kcal GE/100g for each treatment. The feeding experiment was conducted in twelve plastic tanks of 60-liter capacity each stocked with 25 Nile tilapia fingerlings. The fish were fed three times per day at 5% of body weight. After termination of the experiment, results from one way ANOVA showed no significant difference in weight (P=0.69), length (P=0.96) and Fulton’s condition factor (P=1.65) among treatment fish as compared to control group. By using 15%, 30% and 45% fermented WH, 9 % wheat bran, 14% wheat bran and 14% wheat bran with 17% nug cake can be replaced as in T1, T 2 and T 3 respectively. However, based on the value of Fulton’s condition Factor and relative growth rate observed among treatments, 15%, and 30% WH were better than 45% WH.Pages: 210-218 | 602 Views 44 DownloadsDownload Full Article:
How to cite this article:
Derribew Hailu, Alemayehu Negassa, Birhanu Kebede. Evaluation of water hyacinth (Eichhornia crassipes) as a phytogenic diet for Nile tilapia (Oreochromis niloticus). Int J Fish Aquat Stud 2020;8(1):210-218.