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VOL. 9, ISSUE 1 (2024)
Potentials of Azadirachta indica leaves in masculinisation, growth enhancement and survival of Oreochromis niloticus fry
Authors
Olofintila OO, Agbebi OT, Taiwo IO, Oyelakin AS
Abstract
The present study was conducted to evaluate the potentials of Azadirachta
indica leaves (AIL) in the masculinisation of Oreochromis niloticus
fry of undifferentiated sex. Fresh plant leaves of A. indica were cut,
washed, shaded dried and grinded to powder. 100 g of the powdered leaves was
soaked in 500 ml ethanol for 24 hours with constant shaking. Five dietary
concentrations of AIL in three replicates at 0.0g/kg (TR1), 0.5g/kg (TR2),
1.0g/kg (TR3), 1.5g/kg (TR4) and 2.0g/kg (TR5) were weighed, mixed (with Nutra0
Skretting Tilapia feed) and fed to one thousand five hundred O niloticus
fry stocked at a density of 100 fry/m2 for the first 30 days.
Feeding after 30 days was with feed containing no AIL until their sex were
determined macroscopically through their genital
papillae. Results shows that Azadirachta indica leaves feed significantly
induced masculinisation in Oreochromis niloticus fry as increase in the
concentration level of Azadirachta indica leaves from TR1 to TR5 resulted in significant
higher male percentage (72.97%) and survival rate (93.67%) in TR4 against the
lowest male percentage (43.13%) and survival rate (90.33%) in TR1. TR4 and TR5
gave the best weight gain (115g and 11,7g), specific growth rate (4.77g and
4.79g), daily weight gains (0.56g and 0.57g) feed conversion ratio (0.53 and
0.57) and condition factor (2.13 and 2.17) respectively. This study suggested
that Azadirachta indica leaves contain phytochemicals that were
beneficial in the masculinisation of Oreochromis niloticus fry.
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Pages:44-48
How to cite this article:
Olofintila OO, Agbebi OT, Taiwo IO, Oyelakin AS "Potentials of <i>Azadirachta indica</i> leaves in masculinisation, growth enhancement and survival of <i>Oreochromis niloticus</i> fry". International Journal of Advanced Education and Research, Vol 9, Issue 1, 2024, Pages 44-48
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