Ecology, Environment and Conservation Paper

Vol.18, Issue 1, 2012; Page No.(37-41)

GROWTH RESPONSES IN COMMON CARP CYPRINUS CARPIO (L.) FED WITH EXPERIMENTAL DIET OF NIGHT SOIL

V.P. Saini, L.L. Sharma and M.L. Ojha*

Abstract

Utility of night soil, a major urban waste, has been assessed as an additive to the conventional supplementary feed for the common carp (Cyprinus carpio Communis). Out of 3 levels of night soil offered to fish in the form of dried cake (50, 75, and 100%). The dose of 100% depicted the highest growth increment of 128.23% in the experimental fish reared for a period of 60 days in plastic pools. The proximate composition of common carp fed with night soil supplemented diet revealed appreciable increase in protein and fat contents in the fish as compared to the control fish. The Bacteriological screening of night soil supplemented diet fed fish for total & faecal coliforms, E. coli and faecal streptococci exhibited satisfactory low values in fish muscles. In the skin the values of total coliforms, faecal coliforms, E. coli and faecal streptococci were 2.5-5: 0-3.0 and 0-1 MPN/g respectively. These values were well within the safe levels prescribed for human consumption

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