000 03680nas a2200445 a 4500
005 20260817173332.0
008 200114s2017 th ar ||| 000 eng d
035 _a.b12311145
099 9 _aAIT Thesis no.AQ-17-03
100 1 _aLathief, Inamul Hassan Abdul
245 1 0 _aComparative evaluation of biofloc and aquamimicry systems :
_benergy fluxes affecting water quality, microbial activity and growth of fish
260 _aPathum Thani, Thailand :
_bAsian Institute of Technology,
_c2017
300 _a1 online resource (60 leaves) :
_bill.
490 1 _aThesis ;
_vno. AQ-17-03
500 _aA thesissubmittedin partial fulfillment of the requirements for the degree of Master of Science in Aquaculture and Aquatic Resources Management, School of Environment, Resources and Development
502 _aThesis (M.Sc.) - Asian Institute of Technology, 2017
520 _aThe present study comparatively evaluated the water quality dynamics, primary productivity, respiration and fish growth performances with biofloc and aquamimicry systems which used tapioca starch and fermented rice barn as a carbon source. It was carried out in 3500L tanks in triplicates with stoking of 4000 sex-reversed tilapia fry/tank for 8 weeks fed with powdered crumble feed.Results revealed that there was no significant difference in water quality dynamics, primary productivity and respiration between aquamimicry and biofloc systems except nitrate, alkalinity, free CO2and floc volume. In both systems, nitrogen removal was dominated by heterotrophic pathway. But photoautotrophic and chemoautotrophic mediated nitrogen removal were also occurring at a significant level during the initial and towards the end phase respectively. Comparatively, higher rate of chemoautotrophic nitrogen removal was observed in aquamimicry system than biofloc systems.In both systems, the negative NPP and GPP values revealed that systems were predominantly bacterial mediated and functions with serious oxygen deficit requiring continuous aeration. Fish growth performance was not affected by type of culture system. Apart from that, high FCR and the low survival rate were the major concern, can be solved by controlling the total suspended solids and usage of pelleted feed.
650 0 _aTilapia
650 0 _aMicrobial biotechnology
650 0 _aFishes
_xGrowth
700 1 _aSalin, Krishna R.,
_eChairperson
700 1 _aYakupitiyage, Amararatne,
_eExamination Committee
700 1 _aSoni, Peyush,
_eExamination committee
710 2 _aAIT Fellowship,
_eScholarship
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. AQ-17-03
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B04534
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