Vol. 12, Issue 5 (2023)

Author(s):
Naresh Kumar, ML Ojha, BK Sharma, SK Sharma and NL Meena

Abstract:
The 60 days experiments was conducted to assessment of water quality parameters when Nile tilapia (Oreochromis niloticus) fingerlings fed with Tulsi (Ocimum sanctum). Tilapia fingerlings were stocked at the rate of 10 fishes per tank. In this experiment 5 experimental diets were prepared by using dried leaves of Tulsi. T₀ diets were considered as control. Tulsi (Ocimum sanctum) leaves powder was added at the rate of 2%, 4%, 6% and 8% per kg of feed in T₁, T₂, T₃ and T₄ respectively. The range of water quality reported during the test was observed water temperature from (24.70 °C to 26.80 °C), electrical conductivity from (1230.75-1420.25 µS/cm), pH from (7.23 to 8.32), dissolved oxygen from (6.22 to 9.00 mg/l), total alkalinity from (74.5 to 132.5 mg/l), and total hardness from (319.12 mg/l to 468.00 mg/l). In the present study, the water quality parameters remained suitable during experimental period and were suitable for fish growth and survival. The result shows that 8% of Tulsi leaves powder added in experimental diet showed highest relative percent survival and growth in (Oreochromis niloticus). We can conclude that by added Tulsi leaves powder in the diet had shown positive impact on water quality.