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Effects of astaxanthin supplementation on color, growth performance and hematology values in red tilapia (Oreochromis sp.) grown in a recirculating water system |
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| รหัสดีโอไอ | |
| Creator | Phutthaphorn Phumrojana |
| Title | Effects of astaxanthin supplementation on color, growth performance and hematology values in red tilapia (Oreochromis sp.) grown in a recirculating water system |
| Contributor | Suksan Kumkhong, Nitchanan Chukerd, Nattanan Srisakultiew |
| Publisher | Faculty of Agriculture |
| Publication Year | 2568 |
| Journal Title | Khon Kaen Agriculture Journal |
| Journal Vol. | 53 |
| Journal No. | 2 |
| Page no. | 272-287 |
| Keyword | red tilapia, Astaxanthin, recirculating water system |
| URL Website | https://li01.tci-thaijo.org/index.php/agkasetkaj |
| Website title | Khon Kaen Agriculture Journal |
| ISSN | 3027-6497 (Online) |
| Abstract | The objective of this study was to investigate the effect of supplemented astaxanthin in the feed of juvenile red tilapia with an average weight of 7.53±0.56 g, supplemented with astaxanthin at concentrations of 0 (control), 150, 300, and 450 mg/kg, in triplicate. The fish were kept in plastic tanks containing 100 L of water at a density of 15 fish/tank in a recirculating water system, equipped with an automatic feeder and a water replenishment system to maintain water levels throughout the culture period. The study was conducted over two periods: 30 days (Sampling I) and 45 days (Sampling II). The results for 30 days, supplementation with astaxanthin at concentrations of 150-450 mg/kg affected growth performance, feed efficiency, hematology (hematocrit) blood chemistry, (total protein), muscle color (L*-lightness and a*-Redness) and scale color (a*-Redness and b*-Yellowness) (P<0.05). However, it did not significantly affect intestinal microbiota populations (P>0.05) in red tilapia. The results for 45 days, the feed supplemented with astaxanthin at concentrations of 150-450 mg/kg affected growth performance (P<0.05), feed efficiency, hematology (hemoglobin and hematocrit), blood chemistry (total protein), muscle and scale color (L*; a* and b*) (P<0.05), as well as intestinal microbiota (Total bacteria; Bifidobacteria spp. and Vibrio spp.) of red tilapia (P<0.05). In conclusion, astaxanthin supplementation at a concentration of 300 mg/kg is the most suitable and effective level for juvenile red tilapia culture in a recirculating water system. |
