scholarly journals IMPACT OF AQUAFAT-O® ON GROWTH PERFORMANCE, FEED UTILIZATION, CHEMICAL COMPOSITION AND ECONOMIC EFFICIENCY OF ADULT NILE TILAPIA, Oreochromis niloticus

2015 ◽  
Vol 6 (5) ◽  
pp. 287-299
Author(s):  
F Khalil ◽  
A. Gabr ◽  
M. Refaey ◽  
M. Al Samarae
Keyword(s):  
Chemical Composition ◽  
Growth Performance ◽  
Economic Efficiency ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Feed Utilization ◽  
Nile Tilapia Oreochromis Niloticus

Evaluation of use effective microorganisms (EM) with different feeding strategies on growth performance, body chemical composition and economic efficiency of monosex Nile tilapia Oreochromis niloticus juveniles

2021 ◽  
Vol 34 ◽  
pp. 21
Author(s):  
Mohamed F. Abdel-Aziz ◽  
Yaseen A. Abdel-Tawwab ◽  
Mohamed F. Sadek ◽  
Abdel Moneim M. Yones
Keyword(s):  
Chemical Composition ◽  
Growth Performance ◽  
Economic Efficiency ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Basal Diet ◽  
Feed Utilization ◽  
Fish Growth ◽  
Feeding Strategies ◽  
Effective Microorganisms

A factorial trial was conducted to detect the effect of different feeding strategies of supplementation of effective microorganisms (EM) liquid on the growth performance, feed utilization, body chemical composition and economic efficiency of monosex Nile tilapia (Oreochromis niloticus) juveniles. Three experimental treatments were formulated a basal diet without any addition of EM (control; A), a diet supplemented with 2% EM (B), and a diet supplemented with 4% EM (C). All treatments were offered to fish through two different strategies of feeding the meal: 2/3 in the morning and 1/3 in the afternoon or 1/3 in the morning and 2/3 in the afternoon. Each treatment was replicated three times. Juveniles Nile tilapia with an average initial body weight of 3.85 ± 0.22 g (± SE) were randomly stocked at a rate of 90 juveniles per 1.5 m3 tank. Fish growth performance and feed utilization significantly (P ≤ 0.05) increased with increasing EM supplementation and were positively affected by different feeding strategies. Moreover, the economic evaluation showed that there were more benefits by when using the 4% EM diet and feeding 2/3 of daily meal in the morning.

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