03225cas a2200385 a 4500 20260818094652.0 111005s1990 th uu|m rtt 0| a1eng d .b10072433 AIT Thesis no.AE-90-45 Purba, Sirman An economic study of fry production systems in Northeast Thailand Bangkok : Asian Institute of Technology, 1990 89 p. Thesis ; no. AE-90-45 A thesis submitted in partial fulfilment of the requirements of the degree of Master of Science, School of Environment, and Development Thesis (M.Sc.) - Asian Institute of Technology, 1990 The objective of the study is to describe the economic performance of freshwater fish seed hatcheries, to describe the variability among the fry producers and to find out input output relationship . The market s hare of the small, medium, and large private and government hatcheries will also be described . A cross-sectional survey was conducted covering 8 provinces in Northeast Thailand and a total of 67 private hatcheries. The operator of small , medium and large hatcheries were interviewed u sing an open type of questionnaire to obtain the data on economic performance and productivity. The results showed that small hatcheries supplied 7% fry to t he market, the medium and the large supplied 27% a nd 62% respectively, while the government hatcheries supplied only 4% of freshwater fish seed to the market. There are 5 factors that can be used to describe the variability among the private hatcheries which are size of the hatcheries, access to water, location, market dimension and experience, and it was found out that size of the hatcheries is the most responsible factors in explaining the variability among the fry producers. The result indicated that, as the farm size increases the productivity is also increased. Ten types of input variables . have been identified, out of 10 only 3 input variables which are labor, manure, and energy, have significant effect in explaining the output. The efficiency of using input specific to location and farm size can be computed by using the Cobb- Douglas types of function. Fish hatcheries Thailand, Northeastern Waibel, Hermann, Chairperson Little, David C., Examination Committee Demaine, Harvey, Examination Committee Australian Government, Scholarship Donor Asian Institute of Technology. Thesis ; no. AE-90-45 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B18287 .b10072433 mnait s 240410 2 951012 m a s 3 mnait mnarc 22 40 Barcode : 30050120727283 CREATED : 2014-10-02 RECORD # : i12761011 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120363725 CREATED : 2016-05-27 RECORD # : i12999519 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 33459 33459 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.AE-90-45 30050120727283 2026-08-18 09:46:52 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.AE-90-45 30050120363725 2026-08-18 09:46:52 2026-08-18 40