| Author | Ubonrat Limtipsuntorn |
| Call Number | AIT Thesis no.AQ-07-19 |
| Subject(s) | Gobiidae--Feeding and feeds
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| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Aquaculture and Aquatic Resources Management, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. AQ-07-19 |
| Abstract | A bio-assay was conducted to assess the feeding response of fingerling marble goby (Oxyeleotris marmorata), to eleven feed attractants i.e. natural extracts (Mussel, Squid, Prawn) at 10 % inclusion level and crystalline amino acids (Glycine, L-Alanine, L-Proline, L-Valine, L-Taurine), mixture of amino acids, betaine and lnosine-5'-monophosphate (IMP) at a concentration of 10⁻²M. Purified agar was used as the carrier for these attractants. Two size groups of fish were used for the bio-assay. Observation on the feeding response showed that the prawn extract triggered tasting response. Among the tested attractants, the prawn extract was highly effective in stimulating feeding response of fish (p<0.05). Based on the results of the bio-assay, 4 experimental feed were formulated, i.e. control (no prawn meal), 5, 10, and 15 % inclusion of prawn meal, to confirm that the chemical compounds in freshwater prawn influence the feeding response of marble goby. Two feeding trials were conducted to evaluate feed ingestion, food conversion ratio, growth and survival of fish. In the first trial, feeding behavior of individual fish fingerling reared in aquaria under a manual-feeding regime was investigated. At level of 15 % prawn meal inclusion, feed intake was observed to be superior to that of other of treatments. The second feeding trial was. conducted using 12 outdoor concrete tanks (2.5x 2.O x 1.1 m³) for 15 weeks. One hundred fingerlings with average size of 0.69±0.04 g were stocked in each tank. The highest weight gain and specific growth rate were observed in fish fed the diet with 15 % prawn meal. Feed conversion ratio were not significantly different among treatments (p>0.05). However, mortality of fish fed with prawn meal treatments was higher than the fish fed with control diet. The results suggested that the dietary inclusion of 15 % of prawn meal promoted feed acceptability, feed intake and improve growth performance of marble goby. However, further studies are needed to investigate on the low survival rate of fish fed with 15 % prawn meal containing diet and also to develop commercial feed for marble goby. |
| Year | 2007 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. AQ-07-19 |
| 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) | Amararatne Yakupitiyage; |
| Examination Committee(s) | Yi, Yang;Bart, Amrit N;Gallardo, Wenresti; |
| Scholarship Donor(s) | Agricultural Research Development Agency (ARDA), Thailand; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2007 |