| dc.description.abstract | Applications of organic and inorganic fertilizers in the aquaculture ponds are very
common and traditional practices to boost fish production. Day by day fish farmers used
to provide regular balanced feed. Providing the factory feeds are often very costly and
increasing the cost of fish production. To overcome the problem, recently farmers of many
regions are providing fermented manure in the form of compost that are made by
fermenting the cowdung, rice bran, mastered oil cake, urea, TSP etc. Hence, this study was
aimed to assess the impacts of using compost on the physico-chemical parameters of the
water body and plankton production from March 2017 to November 2017. Farmer’s pond
located around the HSTU campus selected based on the inputs provided and named as
pond type; providing compost (pond type –I), providing inorganic and organic fertilization
(pond type-II) and providing factory feed (pond type –III). The experimental laboratory
work such as plankton identification, counting and water quality measurement were
conducted in the laboratory of the Department of Fisheries Management of HSTU.
Statistical analyses were conducted through the use of SPSS version 22.0 and MS Excel
(2010). The transparency, pH and DO were ranged from 24.00-29.00 cm, 7.44-8.15, 6.56 -
7.75 9 (mg/l) respectively in different ponds. A Total of 61 genera of plankton were
identified that consist of 56 phytoplankton and 5 of zooplankton. Chlorophyceae,
Bacillarophyceae, Cyanophyceae, Euglenophyceae, Rotifera, Copepoda, Cladocera and
Crustacean larvae were identified as the major groups of plankton. The enumeration of
plankton showed that the highest number of plankton 61.38 (×10³ cell/L), phytoplanktons
56.46 (×10³ cell/L), and zooplanktons 5.85 (×10³ cell/L) in pond type- I. It was found that
in all ponds, the plankton, phytoplankton and zooplankton were abundantly available in
autumn and followed by summer and rain. The study concluded that the use of compost
had no negative impact on the physico-chemical parameters and produced more plankton
population than other treatments and control measure. To establish the use of compost in
the aquaculture ponds, experiment needed to conduct at research station with replication.
Moreover the fish growth and survival rate were also need to be studied to recommend use
fermented manure in the form of compost in aquaculture ponds as the alternative to
factory feeds | en_US |
