03635nas a2200469 a 4500 20260817173146.0 220301s2020 th ar ||| 000 eng d .b12381950 AIT Thesis no.AQ-20-05 More, Sagar Ravindra Colour enhancement of the Siamese fighting fish betta splendens by incorporation of spirulina in its diet Pathum Thani, Thailand: Asian Institute of Technology, 2020 75 leaves : ill. Thesis ; no. AQ-20-05 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Aquaculture and Aquatic Resources Management Thesis (M. Sc.) - Asian Institute of Technology, 2020 One of the main factors on which the market value of the ornamental fishes depends are its colours. Enhancement of the colour of the fishes increases its market price. However, fishes cannot synthesize carotenoids by themselves and need to obtain them through their dietary intake. In this study, a popular aquarium fish, the Siamese fish (Betta splendens) was fed diets incorporated with varying levels of spirulina. Six diets were made as treatments; T0 with no supplementation of carotenoids, T1 with 20ppm astaxanthin, T2, T3, T4 and T5 with 30, 60, 90 and 120ppm spirulina respectively. The pigmentation of the fish skin was compared by doing the carotenoid analysis in the fish skin and the colour intensity by using the rapid image colour summarizer software. The skin of the fish fed with 120 ppm spirulina (T 5) had the highest carotenoid content (5.02æg/g±0.32) followed by the fish fed with 90 ppm spirulina,T4 (3.36 æg/g ±0.34). Other doses did not differ with control. Inclusion of spirulina significantly enhanced the color of the Siamese fighting fish at highest dose (120 ppm) but had no significant difference (P>0.05) in the growth rate during the experimental trial. Further, more extensive work with higher doses needs to be done to find out the optimum spirulina levels required to enhance the colour of the Siamese fighting fish. Ornamental fish trade Siamese fighting fish Life cycles Aquaculture Nepal Krishna R. Salin, Chairperson Yakupitiyage, Amararatne, Examination Committee Bhujel, Ram C., Examination Committee Asian Institute of Technology Fellowship, Scholarship Donor Asian Institute of Technology. Thesis ; no. AQ-20-05 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B15908 .b12381950 mnait m 240419 0 220301 m a m 0 mnait mnait mnarc mnarc 20 67 40 Barcode : 30050211020036 CREATED : 2022-01-03 RECORD # : i13370613 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050211020028 CREATED : 2022-01-03 RECORD # : i13370625 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : - CREATED : 2022-03-03 RECORD # : i13371289 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120884977 CREATED : 2022-03-03 RECORD # : i13371393 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 18952 18952 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.AQ-20-05 30050211020036 2026-08-17 17:31:46 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.AQ-20-05 30050211020028 2026-08-17 17:31:46 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.AQ-20-05 2026-08-17 17:31:46 2026-08-17 67 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.AQ-20-05 30050120884977 2026-08-17 17:31:46 1 2026-08-17 40