000			03532nam a2200409 4500
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008			080598 th eng
035			_a.b10380474
099		9	_aAIT Thesis no. AE-93-32
100	1		_aSikawa, Daniel C.
245	1	3	_aAn investigation of tilapia (Oreochromis niloticus) fry quality produced by small-scale farmers in Eastern Thailand
260			_aBangkok : _bAsian Institute of Technology, _c1993
300			_a97 leaves
490	1		_aThesis ; _vno. AE-93-32
500			_aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development
502			_aThesis (M.Sc.) - Asian Institute of Technology, 1993
520			_aFry from 6 different farms in Eastern Thailand were raised in 5.4 rn2 nylon blue hapas at AIT aquaculture farm, for 85 days, inorder to compare quality characteristics. The fry was of four different size categories, Tiny,Small, Medium and large with average weights and lengths respectively as follows; 0.26 ±0.02 g, and 2.66 ± 0.06 cm (tiny), 0.70 ± 0.04 g and 3.75 ± 0.07 cm (small), 1.77 ± 0.12 g and 4.90 ± 0, 11 cm (medium), 10.49 ± 0.7 g and 8.10 ± 0.14 cm (large). The stocking density was 300 fry per hapa. Results showed no significant difference (P>O.05) in weight gain between fry from the 6 farms and compared to fry from AIT farm. However, large fry had superior weight gain over medium, small and tiny. The fry started spawning 3 months after stocking, and farms 1 and 5 showed higher frequency and number of observed spawning than fry from other farms and AIT fry. However, there were no significant differences (P>O.05) in terms of time of on{u2014}set of maturation in all the treatments. Mature female gonads first appeared in week 8 (60 days after stocking) with higher frequency in fry from farms 1, 2 and 5. There was no significant difference (P>0.05) in female gonadosomatic index in all the treatments. There was no significant (P<O.05) association between the quality characteristics of the fry in terms of weight gain and on set of maturation and survival with the management systems of fry production from the 6 farms, Water quality did not exert great influence on the results, however Dissolved Oxygen declined 10 days after stocking of fry (<1.00 mg/L).
650		0	_aTilapia
700	1		_aLittle, David C., _eChairperson
700	1		_aEdwards, Peter, _eExamination Committee
700	1		_aDemaine, Harvey, _eExamination Committee
710	2		_aThe British Council, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. AE-93-32
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B17871
907			_a.b10380474 _bmnait _cx
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909			_aBarcode : 30050003008959 _bCREATED : 1994-05-17 _cRECORD # : i10475734 _dLPATRON : 1017252 _eLCHKIN : 2005-03-12 _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 1 _jTOT RENEW : 1
909			_aBarcode : 30050120726939 _bCREATED : 1994-05-17 _cRECORD # : i10475746 _dLPATRON : 1011536 _eLCHKIN : 1998-08-23 _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 4 _jTOT RENEW : 0
909			_aBarcode : 30050120375992 _bCREATED : 2016-01-06 _cRECORD # : i13010797 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
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