Dr.Bireshwar Bera

INTRODUCTIONNanotechnology and nanoscience are the study of production, manipulation, and application of materials ranging in size from less than a micron to that of individual atoms [1]. The major key aspect of nanotechnology involves in the development of rapid and reliable experimental protocols such as biological and chemical processes for the synthesis of nanomaterials over wide range of chem ...

IntroductionFish are the most feed converser than all terrestrial animals' species. So, the world population consumes 17% of their food protein from fish. Nowadays, aquaculture production in Egypt reached to 80% of the total local fish production (GAFRD, 2016 and Abdelhamid, 2019b). Milstein and Svirsky (1996) reported that an appropriate-adequate fish density will utilize the available resources ...

From this study, and for the superiority of th 3rd treatment, it could be concluded that the fish – cum – duck integration system of production is important in producing meat duck and Nile tilapia fish under semi-intensive production system in earthen ponds. But it may gave attention to moderate stocking rate of ducks (125 - 250 duck / feddan) on fish ponds to safe water quality, particularly at l ...