The researchers studied how mulberry leaves extract affects the growth of giant freshwater prawn post-larvae. They mixed the extract with prawn food and fed it to the prawns for 30 days. Prawns fed with 10% mulberry extract had the highest survival rate and number of moulting. This shows that mulberry extract can help prawns grow better and reduce their chances of dying. It could be a useful supplement in prawn feed to increase their production.