Rice bran as an energy-rich supplementary feed in a fertilized system for Nile tilapia | |
| Author | Zhang, Xin |
| Call Number | AIT Thesis no. AE-89-32 |
| Subject(s) | Tilapia Fishes--Feeding and feeds Rice bran |
| Note | A thesis submitted in partial fulfillment of requirements for the degree o f Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | The potential of rice bran as a supplementary feed in fertilized tanks for Nile tilapia (Qreochromis niloticus) was assessed. Optimal loading levels of fertilizers (urea a nd TSP) and buffalo manure were applied to the system based on a previous stud y . <Urea, 5. 4 kg/ha/day; TSP , 0. 99 kg / ha / da y ; buffalo manure, 50 kg/ha/day). Six different feeding levels o f rice bran with three replications were use d 0. 0, 0 . 5, 1. 0, 2. 0, 3. 0 a nd 4. 0 % of fish b o d y weight / d ay. Although different feeding levels of rice bran were applied , there was no significant difference C P < 0. 05) in fish growth performance. However, there was a trend that higher feeding levels led to higher fish yields. Th e range of the mean value of algal bi o mass for all treatments was 0 . 9 - 1 . 2 mg / l with n o significant differences (p < 0. 0 5> among the treatments, which indicated that phytoplankton was enough for fish growth a nd that it was unnecessary to add high- energy supplementary feed in this system at the stocking density used . However, higher rice bran feeding levels led to a higher fat content in final fish carcass composition, which increased the energy source in the fish body . |
| Year | 1989 |
| Type | Thesis |
| School | School of Environment, Resources, and Development |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Edwards, Peter ; |
| Examination Committee(s) | Little, David C. ;Yakupitiyage, Amararatne ; |
| Scholarship Donor(s) | German Academic Exchange Service ( DAAD) the Federal Republic of Germany; |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 1989 |
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