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035			_a.b10025790
099		9	_aAIT Thesis no. AE-89-53
100	1		_aShao, Qingjun
245	1	2	_aA comparison of grass carp (ctenopharyngodon idella) and puntius (puntius gonionotus) using paragrass (brachiaria mutica) as the primary feedstock
260			_aBangkok : _bAsian Institute of Technology, _c1989
300			_a89 p.
490	1		_aThesis ; _vno. AE-89-53
500			_aA thesis submitted in partial fulfillment of the requirement for the Degree of Master of Science, School of Environment, Resources and Development
502			_aThesis (M.Sc.) - Asian Institute of Technology, 1989
520			_aTwo herbivorous fish, grass carp (Ctenopharyngodon idella) and puntius (Puntius gonionotus) were compared in separate common polycultures of Nile tilapia (Oreochromis niloticus), common carp (Cyprinus carpio) and snakehead (Channa striata) over a period of 7 months. Stocking rates were 1 fish/m2 for grass carp, puntius and Nile tilapia, 0.25/m2 common carp and 0.05/m2 snakehead. There were two replicates for each treatment. All ponds were fertilized with buffalo manure, urea and triple superphosphate at the same rate. Feedstock was rice bran for first 2 months and chopped paragrass for the last 6 months of the experiment. After 7 months, the individual body weights of grass carp and puntius increased 337 g and 83 g, respectively. The mean daily weight gain of grass carp which was 1.60 g/fish/day is 4 times that of puntius, which was only 0.4 g/fish/day. The total net extrapolated yields of grass carp and puntius were 2205 and 1233 kg/ha/year respectively. Grass carp had an extremely low survival rate (38%> comparing to the survival rate of puntius which was 83%. The extrapolated net yield of fish from the polyculture of grass carp and puntius were 5,460 kg/ha/year and 3,941 kg/ha/year, respectively.
650		0	_aFishes _xFeeding and feeds
650		0	_aCarp
700	1		_aGartner, Joseph A., _eChairperson
700	1		_aLin, Chang Kwei, _eExamination Committee
700	1		_aWaibel, Hermann, _eExamination Committee
710	2		_aFrance, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. AE-89-53
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B17904
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