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Bio-Flock System of Fish Farming |
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by sagar koirala | 14-10-2019 15:21
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Bio-flock is an innovative and cost-effective technology in which toxic materials to the fish and shellfish such as Nitrate, Nitrite, Ammonia can be converted to useful product, ie., proteinaceous feed. This technology is used in aquaculture system with limited or zero water exchange under high stocking density, strong aeration and biota formed by bio-floc. Biofloc system is a wastewater treatment which has gained vital importance as an approach in aquaculture. High stocking density and rearing of aquatic animals requires wastewater treatment.principle of this technique is the generation of nitrogen cycle by maintaining higher C: N ratio through stimulating heterotrophic microbial growth, which assimilates the nitrogenous waste that can be exploited by the cultured spices as a feed. The biofloc technology is not only effective in treating the waste but also grants nutrition to the aquatic animal. Higher C : N is maintained through the addition of carbohydrate source (molasses) and the water quality is improved through the production of high quality single cell microbial protein. In such condition, dense microorganisms develop and function both as bioreactor controlling water quality and protein food source. Immobilization of toxic nitrogen species occurs more rapidly in bioflocs because the growth rate and microbial production per unit substrate of heterotrophs are ten-times greater than that of the autotrophic nitrifying bacteria. This technology is based on the principle of flocculation within the system. Bio-Flock system was invented in Indonesia .From there, it spreaded all over the world. Last Week ,I visited farm of Mr. Rajan Budhathoki, who has installed two bio-flock plant in his farm in Itahari. This is very good initiation to promote Food Security.
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Former E-gen Ambassador
sagar koirala
Previous : Paddy Cultivation 
7 Comments
Hello Sagar dai,
I hope you are doing great,
Thank you so much for your informative report on fish farming,
Bio-flock system is the new term for me,
Keep writing,
Green Cheers,
Bindu
Posted 18-07-2021 13:54
Greetings Sagar
I hope you are doing well
Great
Thank you so much for this report.
I hope yo read more from you
Keep writing
Green cheers!
Regards
Hema
Posted 18-03-2020 11:50
Hello sagar dai
I hope you are fine.
Bio flock, j have heard about it for the first time.
Thank you so much for introducing us about it.
Thank you so much for this report.
Green cheers
Yours
Asmita Gaire
Posted 16-10-2019 13:27
Hello Sagar,
Bio-flock is system is really good and beneficial.Thank you for this great report.
Keep writing.
Green Cheers,
Shreya
Posted 15-10-2019 00:35
Hello Sagar,
I do hope you are fine and doing great with your works,
Thanks for your well written report .
Keep writing such a great report,
Looking forward to read much more from you,
Yours,
Sandhya
Green cheers!!!!!!
Posted 15-10-2019 00:34
Hello Sagar,
I hope you are fine and doing great . Thank you so much for posting bio flock system on fish farming.
Keep writing
Regards
Yours
Madhu Aryal
Posted 14-10-2019 18:02
Hello Sagar!!!
I hope you are fine and doing great.
Thank you for well-written report.
Keep writing and shining.
Hope to know more from you.
Warm regards,
Meena Pandey
GREEN CHEERS
Posted 14-10-2019 15:53