The impact of feeding method on food consumption , productivity and the different environmental properties of fish rearing ponds.

The study was conducted in kalet al –Madiq fish farm ( Alghab region) – of the General Authority for fish Wealth in the period from 22-11-2008 to 10-4-2009 for the first duplicate year ad 2-10-2009 to 2-4-2010 for the second duplicate carp fingerlings were planted