National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The effect of fermented water hyacinth (FWH) leaf meal on plankton productivity and gut content analysis of common carp (Cyprinus carpio) was studies. FWH was incorporated into test diet, as an energy source, at different levels (@ 0 (T1), 40 (T2), 80(T3), 120 (T4) and 160 (T5) g/kg test diet, as a replacement for equal amount of rice bran. Fish were fed 3-5% of body weight for 120 days. All the water quality parameters were within the range for carp culture. Fermented water hyacinth has enhanced total phytoplankton population and resulted significantly high (P≤0.05) in T5 compared to control (T1).Green algae (Chlorophyceae) and blue green algae (Cyanophyceae) dominated the phytoplankton population. It also enhanced total zooplankton population in different treatments, T2, T3, T4 and T5 and resulted significantly high (P≤0.05) in T5 compared to the Non FWH treatment (T1). In the gut content analysis, phytoplankton and zooplankton were observed maximum (37.98 and 13.24% respectively) in T5 and minimum (23.49 and 4.67% respectively) in T1 treatment and the difference among the treatments were significant (P≤0.05). Diets containing the fermented water hyacinth might have enriched the water, leading to increased plankton population and subsequent consumption by the fish. Fermented water hyacinth leaf meal can partially replace rice bran in the common carp diet to reduce the cost of feed and improving the pond productivity.
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