03532nam a2200409 4500 20260818144353.0 080598 th eng .b10380474 AIT Thesis no. AE-93-32 Sikawa, Daniel C. An investigation of tilapia (Oreochromis niloticus) fry quality produced by small-scale farmers in Eastern Thailand Bangkok : Asian Institute of Technology, 1993 97 leaves Thesis ; no. AE-93-32 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development Thesis (M.Sc.) - Asian Institute of Technology, 1993 Fry 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). Tilapia Little, David C., Chairperson Edwards, Peter, Examination Committee Demaine, Harvey, Examination Committee The British Council, Scholarship Donor Asian Institute of Technology. Thesis ; no. AE-93-32 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17871 .b10380474 mnait x 240328 2 951012 m a x 3 mnait mnait mnarc 20 40 Barcode : 30050003008959 CREATED : 1994-05-17 RECORD # : i10475734 LPATRON : 1017252 LCHKIN : 2005-03-12 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 1 Barcode : 30050120726939 CREATED : 1994-05-17 RECORD # : i10475746 LPATRON : 1011536 LCHKIN : 1998-08-23 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 4 TOT RENEW : 0 Barcode : 30050120375992 CREATED : 2016-01-06 RECORD # : i13010797 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 64860 64860 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. AE-93-32 30050003008959 2026-08-18 14:43:53 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. AE-93-32 30050120726939 2026-08-18 14:43:53 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. AE-93-32 30050120375992 2026-08-18 14:43:53 2026-08-18 40