Assessment of the effects of fenobucarb on acetylcholinesterase activity and growth of silver barb puntius gonionotus (Bleeker, 1850) | |
| Author | Ha Phu Loi |
| Call Number | AIT Thesis no.AQ-10-05 |
| Subject(s) | Acetylcholinesterase Insecticides Barbs (Fish) |
| 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-10-05 |
| Abstract | The research was conducted to assess acute and chronic toxicity of fenobucarb on silver barb Puntius gonionotus, a common cultured fish species in Mekong River Delta. The LC50-96-hours was conducted in static, nonrenewable water. The result showed that fenobucarb insecticide was moderately toxic to silver barb with LC50-96-h determined at 8.01 mg/l. The second experiment was conducted using three fenobucarb exposure concentrations (0.16, 0.80 and 4.01 mg/l) to assess chronic toxicity under static and nonrenewable conditions. There was no mortality recorded but acetylcholinesterase inhibition was detected at 37, 56, and 76%, respectively, at each fenobucarb concentration. The full recovery of acetylcholinesterase was occurred eight days after initial exposure in the highest exposure concentration treatment. With the three similar concentrations, the effect of fenobucarb on the growth of silver barb was assessed. There were negative effects of fenobucarb insecticide on growth of silver barb. The weight gained of silver barb in the highest exposure concentration was 24% significantly lower than that in control treatment. The food conversion ratio in fenobucarb exposed to treatments of 0.16, 0.80, and 4.01 mg/l were 2.0, 2.7, and 3.1, respectively and significantly higher than that of control treatment with (1.8). |
| Year | 2010 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. AQ-10-05 |
| 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) | Yakupitiyage, Amararatne |
| Examination Committee(s) | Gallardo, Wenresti G.;Thakur, Dhirenda Prasad;Nguyen Thanh Phuong |
| Scholarship Donor(s) | SUDA, Vietnam |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2010 |