Effects of Vermicompost on Growth of Cyprinid Fish and Water Quality of Warm Water Earthen Ponds

Abstract

Experiment was conducted in 0.0-ha earthen ponds to promote growth performance of silver carp and Cyprinus carpio and big head (cyprinid) plus phytoplankton and zooplankton and were estimated in a pond receiving mixed fertilizer with vermicomposting, with 6000 and 12000 kg per/ha/year mixed with fertilizer (VC6 and VC12) and 6000, 12000 kg per/ha/year without vermicomposting (CO6and CO12). All treatments were compared finally. Significant differences were found in diversity and abundance of plankton in the pond exposed to fertilizer having CO6, CO12 and VC6, VC12 The used fertilizer and manure could be graded in the following descending order VC12, VC6, CO12, and CO6. The least concentration was accounted in control sets with 6000 kg manure. The highest production of fish was found in vats treated with VC12 (12000kg/ha/year) followed by VC6 (6000 kg / ha/year), CO12 (12000 kg/ha/year), CO6 (6000 kg/ha/year). The highest yield of fish in vats applied with VC12 may be related to its highest manorial value.