Effect of Recirculation Aquaculture System (RAS) on Fish Farming and Vegetables

Periodic Research (P: ISSN No. 2231-0045 RNI No. UPBIL/2012/55438 VOL.-IV, ISSUE-II, November-2015 E: ISSN No. 2349-9435)

Abstract



 Ranjeet Shanbhag

Technical Officer, Deptt. of Aguriculture, Vigyan Ashram Pabal, Pune


Sumed Thorat 

Assistant Professor, Deptt. of Hotriculture, DBSKKV, Dapoli, Ratangir

High density fish farming with Recirculation Aquaculture System (RAS) is one of the advanced technique in fish farming with add-on benefits like agriculture production, less capital intensive and water re-use (recirculation) features as compare to other conventional method like pound or tank based indoor systems. The RAS farming experiment was conducted with tilapia fish and leafy vegetables on bio-bed. The RAS system was consist of fish tank with HDPE (sipolin) plastic paper lining, bio-bed (bio-filter) and water circulation system. During trail it was found that, the bio-bed was effectively established by water circulation system and NH3 levels in were maintained below 1 PPM in fish tank. The high FCR was mainly fluctuating dissolved oxygen levels during night time, accumulation of particulate (bottom sludge) in fish tank and low quality fish feed formulation. The higher fish mortality was due to excessive handling of fished during weight gain recoding. Even though at first impression it seems trial has recorded high FCR and negative economic value proportion, but if the required system corrections are successfully achieved, the RAS defiantly has a potential of large scale replication in selected agro-climatic region.

for full paper please visit below link :

http://www.socialresearchfoundation.com/upoadreserchpapers/2/80/1601191049011st%20ranjeet%20shanbhag.pdf

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