||Purpose Rising demand of fish generates various pressures
on aquatic ecosystems, causing its deterioration and the
loss of its biodiversity. With the aim of a better management
and fish production in a salubrious environment, this
study proposes the utilization of organic fertilizers from
Methods The treatments consisted of manure of rabbits fed
with: manufactured diet (T1), improved diet with Ipomea
aquatic (T2), improved diet with Elaeis guineensis (T3),
and improved diet with Panicum maximum (T4). Indeed,
experimental design was a completely randomized block
design with three replications. 6 g in 10 L of water from
the different manures from each diet was followed during 50 days. Various nutrients were measured.
Results After the mineralization process, the best manure
which released more nutrients was T4 with measured proportions
of N-NO2-, N-NO3 -, N-NH3, P-PO43-, Ca2+,
Mg2+, K+, and suspended matter being 0.06 ± 0.0,
0.38 ± 0.1, 0.85 ± 0.1, 8.27 ± 0.9, 12.11 ± 0.8, 4.47 ±
0.3, 3.02 ± 0.2, and 140.78 ± 18.6 mg/L, respectively.
The highest content of phosphorus and nitrogen was
recorded in T4 and T2, respectively. The principal component analysis showed a positive correlation between P-PO43-, Ca2+, Mg2+, MES, conductivity, and salinity during mineralization.