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International Journal of Fisheries and Aquatic Studies
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(ICV-Poland) Impact Value: 76.37, Impact Factor: RJIF 5.69
E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2015, Vol. 3, Issue 2, Part A

Effects of dietary protein levels and stocking densities on growth, and survival of monosex Oreochromis niloticus


Author(s): Olele NF, Ikenga EE, Bratte L, Adaka GS

Abstract: Crude protein rations and stocking densities influence growth, and nutrient composition of fish, depending on environmental factors etc. 240 fish samples, with weight and size ranges between 10.01-12.11 g and 8.0-9.7cm respectively were hand-sexed. They were acclimated in 100 liters plastic bowl and fed compounded feed, 5% body weight, twice daily for 90 days. The experiment was 2 x 3 x 4 factorial. Data obtained revealed that the highest body weight (TC2 - 16.72±6.52) was obtained at 30% crude protein at a stocking density of 20 fish samples. The highest feed conversion ratio (TC3 -19.57±0.96) was obtained at 30% crude protein at a stocking density of 30 fish samples. The highest and lowest protein efficiency ratios were obtained at 35% crude protein diet (TD1 -1.76±0.48a) and 30% crude protein diet (TC3-0.35±0.12c). Fish survival at dietary rations and stocking densities was 100%. The study indicates that Oreochromis niloticus fed 30 % crude protein diet at a stocking density of 20 fish/100 liters bowl resulted in the highest growth.

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How to cite this article:
Olele NF, Ikenga EE, Bratte L, Adaka GS. Effects of dietary protein levels and stocking densities on growth, and survival of monosex Oreochromis niloticus. Int J Fish Aquat Stud 2015;3(2):12-16.
International Journal of Fisheries and Aquatic Studies