Effect of formulated and supplementary feeds on water quality parameters in concrete ponds stocked with Oreochromis shiranus fresh water fish Author/Editor(s): Tizita, A.Sikawa, D.Kaunda, E.Mtethiwa, A.Kang’ombe, J.Macuiane, M.Date of publication: 2016RUFORUM Working document series Read more about Effect of formulated and supplementary feeds on water quality parameters in concrete ponds stocked with Oreochromis shiranus fresh water fish