ABSTRACT
Abstract: The study was conducted to find out the effects of Moringa oleifera leaves and seeds as a supplementary feed on the growth performance of all-male tilapia. The main objectives of the study were to determine effects of the supplementary feed (leaves + normal feed, seeds + normal feed, leaves + seeds + normal feed) on all male tilapia in terms of their average standard length, total length, standard width, total width and weight. The parameters for each of the treatments were measured fortnightly over the entire eight weeks period. The sample covered a total population of 260 fishes - 20 each from the hapa and 60 from each of the 4 ponds. The results revealed significant differences among the treatments (normal feed, leaves + normal feed, seeds + normal feed, leaves + seeds + normal feed) used on the parameters measured (average: standard length, total length, standard width, total width and weight) at (p < 0.05). The results clearly demonstrated that the seeds recorded higher (best growth) performance in terms of the parameters measured than all the other treatments administered. This was followed by combination of seeds and leaves with the normal feed only recording the least performance.

ABSTRACT
Abstract: The major advantage of using plant extracts for silver nanoparticle synthesis is that they are easily available, safe, and nontoxic in most cases, have a broad variety of metabolites that can aid in the reduction of silver ions, and are quicker than microbes in the synthesis. The main mechanism considered for the process is plant-assisted reduction due to phytochemicals. In present we had selected two plant - Ziziphus mauritina commonly known as Indian jujube (Ber) and Coriandrum sativum commonly known as coriander for the phytochemical screening, nanoparticle synthesis and antibacterial activity against Kliebsella pneumonia, Clostridium per fringes, Citrobacter freundii and Staphylococcus aureus bacteria. All the bacteria selected in this study are highly and drug resistant. Potency of these plant extract against selected bacterial culture increases with formulation of nanoparticles .When compared with free extract in terms of zone of inhibition exhibited by bacterial culture. Zeta potential analysis of nanoparticles confirms that all the nanoparticles are of size loss them 100 nm. Stability of nanoparticles up to 15 days was observed which confirms the method of preparation of nanoparticle is stable and successful. Research finding confirms the format and stable nature of nanoparticles, which make them, potential and significant in drug delivery agent.