The combination of Fish, Piggery & Duck farming is called integrated farming. You can ensure that the waste from the piggery gets to the fish in the pond as well as place a cage on top of the pond in which the duck needs to be kept. The waste from the duck also becomes feeds to the fish in the pond.
Check these sites to understand more - http://agritech.tnau.ac.in/fishery/fish_ifs_pig.html or http://agritech.tnau.ac.in/fishery/fish_ifs_duck.html
We give Online & On-Field Consultancy regarding Khaki Campbell(Layer type) & White Pekins (Broiler Type) Duck Farming. Regarding Further information in this regard, Send in your Contact Details with your email id & Mbl. No. Thanks & Regds.,
Firoz Hassan. Horticulturist, Duck Farming & Organic Farming Expert.
Green Farm Organic.
Allahabad, Uttar Pradesh.
Mbl. + 9795495543 & 9559944441.
email: greenfarmorganics@gmail.com