International Journal of Fisheries and Aquatic Studies
Volume 1, Issue 4, 2014
Nutritional assessment of fern (Asplenium barteri) in diets of Clarias gariepinus fingerlings
Author(s): Reginald I. Keremah and Timothy P. Agraka
Abstract: A study was conducted for 56 days to test the effect of varying levels of fern (Asplenium barteri) at 0%, 5%, 10%, 15%, 20% and 25% on the growth, survival and nutrient utilization of Clarias gariepinus in plastic aquaria. Growth rate decreased as level of fern increased. Highest weight gain of 1.38±0.18 g and % weight gain, 184.16±71.89% was observed for fish fed 5% fern diet and was followed by 10% fern diet but no difference with 0% fern (P<0.05). Results were similar between 0%, 5% and 10% in feed conversion, protein efficiency ratio and fish condition. Fish survival was 48.22±3.56-72.92±3.56% for all diets. Diet containing 25% fern was most economical while 0% fern diet was uneconomical. By performance and economic considerations, authors suggest maximum dietary inclusion of fern to be 10%.
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