Two series of experiments have been successively conducted to determine the modalities of food farming pond. In the first experiments, three daily 165.81 ± 4.59 g. These are: (T1) = 4% of fingerlings total weight the whole duration of breeding, (T2) = 5%, 4% and 3.5% of fingerlings total weight, respectively the first month, the second month and the last one for the continuation of the duration of breeding. At the end of this experiment, T2 gave the best growth results in the fish which reached for this ration a final average weight of 933.79 ± 7.52 g. The second experiment concerned the frequency of feeding. Fingerlings of 281.26 ± 19.05 g, have been subjected to three frequencies of nourishment namely: (2md) = 2 meals per day, (3md) = 3 meals per day and (6md) = 6 meals per day. The highest final and the best food efficiency were observed in fish receiving 6 meals per day. The frequency of 3 meals can also be recommended insofar as the obtained growth results of the fish are not significantly different from those obtained with 6 meals per day.
BI et al. (Fri,) studied this question.