Evaluation of feed quality and growth performance of Nile tilapia, Oreochromis niloticus fed with fermented soybean enriched pellet feed | |
| Author | Srithar, Harihara Sudhan |
| Call Number | AIT Thesis no.AQ-21-03 |
| Subject(s) | Fishes--Feeding and feeds Fishes--Growth Nile tilapia |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Aquaculture and Aquatic Resources Management |
| Publisher | Asian Institute of Technology |
| Abstract | Farming tilapia using low-protein pellet feed containing plant protein sources is a common practice in Thailand, which needs improvement in quality and better acceptability to the fish. This study was aimed to improve feed quality and utilization attributes of low-protein pellet feed for tilapia by enriching with fermented soybean (FSB) and to evaluate the growth performance of the tilapia fed with the FSB-enriched pellet feed. This study consisted of a control (T0) with a commercial pellet of 18 % protein without any FSB coating; three treatments containing different levels of FSB coated on the pellet feed, namely, T1 (FSB, 100ml/ kg), T2 (FSB, 200ml /kg), T3 (FSB, 300ml /kg), and T4 (positive control) commercial pellet of 30 % protein without any FSB coating. The attractability percentage of T2 (44.29 ± 11.65) was found to be significantly higher (p < 0.05) than control T0 (31.9 ± 9.81). The palatability (mg of feed /g of fish) of the T2 (47.68 ± 3.04) feed was found to be significantly higher (p < 0.05) than control T0 (43.87 ± 4.36). The durability (%) and water stability (%) of fermented soybean (FSB) coated feed T1 (85.8 ± 0.17) (62.42 ± 1.2), T2 (85.67 ± 0.7) (57.37 ± 2.85) has no significant effect compared to control T0 (84.83 ± 0.4) (66 ± 2.25). The durability (%) and water stability (%) of treatment T3 (81.8 ± 0.44) (45.77 ± 5.88) were found to be significantly (p > 0.05) lower compared to control T0. The growth performances of Nile tilapia fed with different level of FSB coated pellet (T1, T2 and T3) has no significance (p > 0.05) compared to control T0. From the result of this experiment, the FSB can be coated to plant protein pellet at the rate of 200 ml / Kg of feed. The coating can increase attractability and palatability. The coating of the pellet at this rate has no negative effect on the physical quality of the pellet. Further research on the analysis of amino acid, fatty acid and digestibility of FSB are recommended. |
| Year | 2021 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Aquaculture and Aquatic Resources Management (AQ) |
| Chairperson(s) | Salin, Krishna R. |
| Examination Committee(s) | Yakupitiyage, Amararatne;Bhujel, Ram C. |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 2021 |