An overview on the potential of agro-industrial wastes as fertilizer in aquaculture

Aquaculture is currently the fastest growing animal manufacturing field in the world and aquaculture in general and fish culture in specific can significantly contribute and help in alleviation of both qualitative and quantitative food shortages. A fertilizer is natural substance added to soil or land to increase its fertility. The type of fertilizer used and the rate of application can affect fish growth and yield by influencing the abundance and composition of natural food. Agro-industrial integration is an organic link between agriculture and industries that uses agricultural raw materials on one hand and manufactures agricultural inputs and agriculture that uses them on the other hand. Composting of sewage sludge provides an environmentally sound and energy saving solution to the increasing problem of waste management and disposal. It is also one of the most promising technologies for treating bio-solids allowing their recycling.