Siamese fighting fish (Betta splendens) is an ornamental fish that is the first exported economically valuable fish in the country, but there is a limitation to increase the production of betta fish due to climate variability and the shortage of Thai workers. This research aims to develop 2 systems: a betta fish fry nursery system and a market-sized betta fish rearing system by using automated technology to precisely control the water quality in the system and reduce labor costs. Using precise automation consists of two systems: a minimal-waste system, which repurposes some of the waste generated from farming, and a zero-waste system, which treats and recycles all wastewater from farming. These systems aim to address issues related to water quality, animal welfare, and labor requirements in Betta fish farming. Experimental results show that these systems improve Betta fish survival rates by 10-15% compared to traditional methods. When considering net returns, the zero- waste system provides the highest profitability.
ในการเพาะเลี้ยงปลากัดประกอบด้วย ระบบอนุบาลลูกปลากัด เป็นการเลี้ยงลูกปลากัดในบ่อปูนซีเมนต์ขนาดเส้นผ่านศูนย์กลาง 60-80 เซนติเมตร มีการเพิ่มระดับน้ำแทนการเปลี่ยนถ่ายน้ำสัปดาห์ละ 5-10 เซนติเมตรจากระดับน้ำเดิม และการเลี้ยงปลาขนาดตลาด เป็นการเลี้ยงปลากัดในขวดแบนเรียงต่อกันจำนวนมากบนพื้นคอนกรีต มีการให้อาหารหรือเปลี่ยนถ่ายน้ำโดยใช้แรงงานคน 1 คนต่อการเลี้ยงปลากัด 10,000 – 40,000 ตัว ดังนั้นระบบอนุบาลและการเลี้ยงปลากัดขนาดตลาดแบบพัฒนาใหม่โดยใช้เทคโนโลยีในการควบคุมคุณภาพน้ำ การให้อาหารและการเปลี่ยนถ่ายน้ำด้วยระบบอัตโนมัติ จะช่วยแก้ปัญหาอัตราการตายของปลา การใช้แรงงาน และยังสามารถเพิ่มอัตราการรอดของลูกปลากัดได้อีกด้วย
คณะเทคโนโลยีการเกษตร
The research aims to develop chili Thai commercial varieties for resistance to anthracnose and Pepper yellow leaf curl virus disease. The varieties allowing farmer to reduce the use of chemical pesticides for disease and pest control, also increases productivity and lowers production costs for farmers. The development new varieties are under studied of undergraduate, master's, and doctoral students by using conventional and molecular plant breeding. The new chili varieties were released to farmer and commercial companies for development for Thai commercial seed industry.
คณะสถาปัตยกรรม ศิลปะและการออกแบบ
The " Center of Invention for Future and Sustainability Project (Continuing)" serves as a continuation of a pilot initiative focused on the retrofitting of older buildings (Vach. 7), specifically a five-story structure. The primary aim of this project is to develop methodologies for enhancing the sustainability of existing buildings in order to mitigate carbon dioxide emissions. In the execution of the Future and Sustainability Innovation Development Center Project (Continuing), a comprehensive analysis of relevant data and theoretical frameworks has been undertaken, leading to the formulation of a research methodology designed to identify optimal strategies for retrofitting older buildings to reduce carbon dioxide emissions. This approach is structured into three principal phases: the combustion of fuels associated with transportation, labor, and materials; the electricity consumption during the construction process; and the accumulation of greenhouse gases from both existing and new construction materials. The project employs an experimental research design, wherein empirical data is collected to evaluate and quantify the equivalent carbon dioxide emissions arising from the construction of new buildings compared to the retrofitting of the selected case study building. Subsequent analysis of the collected data revealed that retrofitting the existing structure—through the integration of sustainable design principles—resulted in greenhouse gas emissions of 11.88 kgCO2e/sq.m. In contrast, the emissions associated with new building construction amounted to 299.35 kgCO2e/sq.m., indicating a reduction in carbon dioxide emissions by a factor of approximately 26 when compared to the construction of new buildings.
คณะสถาปัตยกรรม ศิลปะและการออกแบบ
The concept of building a friendly city for older people by adjusting the physical environment is considered one of the crucial components of promoting older people’s better health and quality of life. Based on this tenet, designing a suitable footpath and considering older people’s needs are vital to the reduction of risks and the increase of safety in travelling, especially for older people living in Wat-Thad and Wat-Klang communities where the proportion of the elderly has continuously, increased. The research aimed to 1) survey the physical environment of footpath, approaching public assistance, 2) observe the elderly’s behavior and satisfaction on footpath in communities, and 3) create the proposal concept in developing the suitable footpath with the elderly’s need in city area. This research used various tools, including the questionnaire on the footpath’s physical environment to analyse problems, limitations, and footpath potentials, the interview of staff in the Engineering Division, Khon Kaen municipality and the questionnaires collecting travelling behaviour, satisfaction and attitude of elderly on the footpath in community. The data analysis the physical environment following six components in the monitoring list showed three used descriptive statistics. Interestingly, from 370 samples, the results of investigating qualified evaluations, namely 1) land utilisation in the communities, 2) linking the transportation network, and 3) beautifully attractive places for walking. However, three unqualified evaluations were 1) safety footpath availability, 2) design for all people, and 3) walking on the footpath to access public assistance and facilities. Moreover, the results from the questionnaire to study older people’s travelling behaviour, indicated that the most travelling objectives were grocery shopping and accessing the recreation sites with frequent visits three to five times per week. Furthermore, older people’s satisfaction with the community footpath was overall at a high level, This research proposed suggestions for developing a safe footpath to ensure safe walking access to facilities and public assistance.