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ผลงานตีพิมพ์ในวารสารวิชาการChanges in Sex Steroids, Growth Hormone, and Insulin-Like Growth Factor-I during Ovarian Development in Rainbow Trout Cultured in a Water Recirculating System with Continuous Lightผู้แต่ง: Gregory M. Webber, John W. Davidson, P. Brett Kenney, Christopher M. Good, Meghan L. Manor, Carla Welsh,  Dr.Aunchalee Aussanasuwannakul , Steven T. Summerfelt, วารสาร:    
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 ที่มา:KASETSART UNIVERSITY FISHERIES RESEARCH BULLETINหัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : PLA DUK DAN CULTURE IN CIRCULAR CONCRETE PONDS WITH WATER RECIRCULATING SYSTEM) ผู้เขียน:นายวิทย์ ธารชลานุกิจ, ศาสตราจารย์, นายเวียง เชื้อโพธิ์หัก, ศาสตราจารย์, นายประวิทย์ สุรนีรนาถ, รองศาสตราจารย์, Uthairat Na Nakorn สื่อสิ่งพิมพ์:pdf AbstractA study was conducted in circular concrete ponds with water recirculating system at the Kasetsart University Aquaculture Department to evaluate the effects of different stocking levels on fish survival, growth, production, feed conversion, and economic returns. On 16 June 1981, pla duk dan fry averaging 0.1 g each were stocked in six 15-m3 ponds at the following rates: 5,000 fish per pond, 2 ponds; 7,500 fish per pond, 2 ponds; and 10,000 fish per pond, 2 ponds. The fish were fed floating pellet until September 15. Results indicated that average fish survival (%), absolute growth (g), production (kg), feed conversion, and economic returns (%), respectively, were as follows: the low stocking level treatment, 79.53, 96.07, 381.49, 1.40, 44.38; the medium stocking level treatment, 91.06, 89, 607.32, 1.49, 53.62; and the high stocking level treatment, 90.73, 85.51, 775.04, 1.24, 80.93. The economic feasibility for small scale culture of this fish was also estimated. |
 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Pla Duk Dan Culture in Circular Concrete Ponds with Water Recirculating System) ผู้เขียน:นายวิทย์ ธารชลานุกิจ, ศาสตราจารย์, นายเวียง เชื้อโพธิ์หัก, ศาสตราจารย์, นายประวิทย์ สุรนีรนาถ, รองศาสตราจารย์, Uthairat Na Nakorn สื่อสิ่งพิมพ์:pdf AbstractA study was conducted in circular concrete ponds with water recirculating system at the Kasetsart University Aquaculture Department to evaluate the effects of different stocking levels on fish survival, growth, production, feed conversion, and economic returns. On 16 June 1981, pla duk fry averaging 0.1 g each were stocked in six 15-m ponds ; and 10,000 fish per pond, 2 ponds. The fish survival (%), absolute growth (g), production (kg), feed conversion, and economic returns (%), respectively, were as follows : the low stocking level treatment, 79.53, 96.07, 381.49, 1.40, 44.38 ; the low stocking level treatment,91.06,, 89, 607.32, 1.49, 53.62; and the high stocking level treatments, 90.73, 85.51, 775.04, 1.27, 80.93. The economic feasibility for small scale culture of this fish was also estimated. |
ผลงานตีพิมพ์ในวารสารวิชาการA review on the "in vitro" culture of freshwater mussels (Unionoida)ผู้แต่ง:Lima, P., Lima, M.L., Dr.Uthaiwan Kovitvadhi, Associate Professor , Kovitvadhi, S., Owen, C., Machado, J., วารสาร: |
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ที่มา:KASETSART UNIVERSITY FISHERIES RESEARCH BULLETINหัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : A Comparison Study on Production and Plankton between Two Water Exchange Rates of Recirculating Shrimp Culture (Penaeus monodon) System Using Low Salinity Water) ผู้เขียน:Tanyanan Kaweekityota, ดร.วราห์ เทพาหุดี, รองศาสตราจารย์ , ดร.ชลอ ลิ้มสุวรรณ, รองศาสตราจารย์ , ดร.นิติ ชูเชิด, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractA recirculating shrimp culture system was studied at a commercial shrimp farm in Thailand. Low salinity water was used for supply in the farm. Four experimental ponds were employed. Postlarvae 15 (PL 15) were stocked at a density of 44 PL/m2. After 60 days of culture, two water exchange rates (i.e. 10% of pond water volume, once and twice a week) were tested. The system production from low percentage water exchange rate was 824?96.2 kg/rai, average weight of 20.9?1.84 g, The production from high percentage water exchange rate was 876+46.0 kg/rai, average weight of 23.4 ?2.33 g, growth rate of 0.17?0.05g, survival rate of 56.4?1.2 % and FCR of 1.55 ?0.06. growth rate of 0.15?0.064 g/day, survival rate of 56.3?1.6 % and FCR of 1.55?0.06. However, there was not a statistically significant difference. Most water quality parameters were in an acceptable range. A large number of blue-green algae were often found during the culture period. Results show that the water exchange rate of 10% once a week could obtain acceptable production results, which was not a statistically significant difference from the other rate. Therefore shrimp culture in recirculating systems using low salinity water with water exchange starting 60 days after culture, using 10% of pond water volume every week, was found acceptable. |
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Researcherดร. อุทัยวรรณ โกวิทวที, รองศาสตราจารย์ที่ทำงาน:ภาควิชาสัตววิทยา คณะวิทยาศาสตร์ สาขาที่สนใจ:Ecology, Taxonomy, Culture Gloehidia in Modified Media nad Rearing Adult of Freshwater Mussel Freshwater Ecology, Aquaculture Resume |