Aquaculture is crucial for Algeria’s economy, providing essential protein to support a balanced diet. This study at the Cherchell School of Fishing and Aquaculture focuses on assessing the effects of two diets on the growth of Nile tilapia (Oreochromis niloticus) to address the increasing demand for protein and the limitations of traditional fishing. The research compares a commercial feed (Feed A) with a specially formulated feed (Feed B), examining their impact on tilapia growth through a controlled experiment using four aquariums equipped with thermostats and air pumps to maintain optimal conditions.
Keywords : Biometric indices, Growth, Aquaculture, Oreochromis niloticus
During a 40-day internship, forty fish were monitored for growth, with daily tracking of water temperature, weight, and feeding. Feed B was specially prepared from fish waste, Azolla, vegetable oil, multivitamins, and wheat flour.
Results show significant differences in growth rates, with Feed A producing a 10g weight gain (from 24g to 32.5g) over 75 days, while Feed B resulted in an 8.5g increase (from 25.15g to 35.15g). The findings suggest that tailored feed formulations can enhance tilapia growth and support sustainable resource management, contributing to Algeria’s food security (Fig.1 a and b)
According to the results for Average Daily Gain (ADG) presented in Table X, we observe that individuals fed a diet containing 41% Azolla and 35% wheat flour have an ADG of 0.86 g/day. In comparison, the diet containing 41% soybean and 35% corn shows an ADG of 0.75 g/day. (Tabl.1)