| Summary: | 碩士 === 中原大學 === 生物醫學工程研究所 === 107 === In recent years, the culture of ornamental fish has become quite popular, and most of the common problems in the general culture of ornamental fish have not been properly controlled due to water quality problems, making it easy for bacteria to invade during the period of ornamental juvenile fish, and the struggle between adult fish groups will also make the fish body difficult to recover from the wounds caused by bacteria. If the growth period of the juvenile fish is shortened and the recovery rate of the adult fish is increased, the quality of the cultured fish can be improved. For the juvenile fish grow to the adult fish, it takes about 3 months, and the juvenile fish that can be purchased from the market has grown for 2 months, and the remaining one month can be used to grow into adult fish. The self-developed atmospheric plasma equipment is applied to the water. It has a working voltage Vpp of 10.6 kV, an operating current Ipp of 2.7 A, operating frequency of 102.4 kHz, and a total power consumption of 18.49 W for 20 days. The juvenile fish can be grown effectively to adult fish, and the plasma-burning group can increase the growth rate of juvenile fish by about 2 times. In the experiment, the plasma system is applied to the simulated fish group in the simulated wound group, and the recovery rate of the adult fish wound is increased by 10%. When the plasma is applied in water, the water can be converted into plasma-activated water. The main advantages of the plasma system can have sterilization effect on any bacteria, no thermal effect and no electrical stimulation. Microbes are inactivated to improve the growth rate of fish by purifying and control the water quality. The plasma reactor can effectively reduce the microbial content in water by circulating water for 30 minutes, while slowly reducing its pH, degrading organic waste in water and maintaining water quality at a certain level. Therefore, this research is focus at design and develop an atmospheric low temperature plasma system apply to water quality optimization that can increase the growth rate of juvenile fish and accelerate the recovery of adult fish wounds. If the future can apply this technology to other fish species, it is believed to bring higher benefits.
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