| Issue |
E3S Web Conf.
Volume 234, 2021
The International Conference on Innovation, Modern Applied Science & Environmental Studies (ICIES2020)
|
|
|---|---|---|
| Article Number | 00040 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.1051/e3sconf/202123400040 | |
| Published online | 02 February 2021 | |
Modeling of discharges from the breeding basins of rainbow trout fed with three extruded feeds (B, F1, and F2)
1 Environnemental engineering Team. Department of Biology, Faculty of Sciences and Techniques .University Sultan MoulaySlimane. M’ Ghila, B.O 523. 23 000 Beni-Mellal, Morocco
2 Fish Farming Ain Aghbal, Azrou – Morocco
* Corresponding author: khadijaouaissa89@gmail.com
The main of this study is to estimate the maximum density of fish in the growing basins of rainbow trout (Oncorhynkiss Mykiss) species by mathematical equations, which will be used to introduce environmental concerns. Indeed, these equations make it possible to estimate the maximum density of fish fed by the extruded feed B and the two elaborated exruded feeds (F1 and F2) to achieve an optimal production without harming the environment. Note that the elements (PO43-, NH4 +, NO2-, NO3-, SM, COD) were analyzed during the rainbow trout grow-out test in the breeding station of 'Oum Er rbia. According to the results of density modeling as a function of physicochemical parameters, production can increase up to a density of ρF2 = 237.09 Kg / m3 without affecting the quality of the water while respecting the required standards. Our results show that the F2 formulation, containing 60% protein of animal origin and 40% of vegetable protein gives great zootechnical growth of rainbow trout with a low production of fish waste.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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