Finally, it can be concluded that the usage of either Jade
Spirulina® or Ropadiar powder plus® can beneficially enhance
growth performance parameters, muscle protein composition,
serum antioxidant activity and immune status of O. niloticus;
and both concentrations of Ropadiar powder plus® (5% and
10%) in fish diet achieved the best results in raising the
immune response of O. niloticus towards bacterial infections
and this can be considered as a good candidate to be
alternative the use of antibiotics in feed.