questions: asked about fish feed management for improvement of fish growth 
 answers: lime @ 10 kg per bigha, mix with water and keep for 4 hrs before broadcast
cowdung @ 130 kg per bigha, mix with water and broadcast
urea @ 3.2 kg & ssp @ 2.6 kg per bigha mix with water and apply on the pond
supplementary feed @ 3% per body weight:
floating feed, company name abis, cp feed, godrez, nsff with protein % not less than 24 crude protein
13 kg supplementary feed for 200 kg grass carp, 90 kg silver carp and 150 kg rohu and mrigal(total weight is 440 kg)
you can give 10 kg for 440 kg fish
observe wether fish eats or not. thank you