An Thomas, John creator Little, David C. Chairperson Edwards, Peter Examination Committee Demaine, Harvey Examination Committee Government of Australia Scholarship Donor text series technical report th Bangkok Asian Institute of Technology 1989 continuing eng 70, [48] p. An assessment of the use of rice bran as a fish feed was carried out in four areas in Udon Thani province of the North east Thailand, representi11g four agro-ecological zones in the region. The study included a survey of fisl1 farming population in The selected areas to assess t.li e use of rice bran as a fish feed; evaluation of rice .bran samples collected from the field in terms o f the quality; a storage study to evaluate l be quality changes of rice bran on storage and a case study of two villages to study The dynamics of rice bran marketing in the villages. Average area of a fish pond was found to be 1 .16 ha , yielding on an average 1 5 O O Kg/ha of which 20 . 1 per cent was us e d for home consumption. The survey confirmed The earlier observation s l hat rice bran was the most commonly used fish feed being used by 65 % of the fanners. Farmer ' s awareness of the locally available feed stuffs was a1so observed. The common fish pond inputs were vegetables, termites, duck weed, ipomea and cassava leaf. Differences in fish pond inputs used , reflected local availability and agricultural practices of Ll1e area. 77 % of the farmers were found to use less than 1 Kg of rice bran and 44 % of the farmers were found to feed rice bran once every day. Limited availability of rice bran was reported to be the reason for confining the use of rice bran . The low fish yie1d is attributed to the low usage of feed inputs of which rice bran is a major constituent. A clear difference in the proximate composition was observed between the rough, smooth and mixed rice bran available to the farmers. A rapid increase in free fatly acid was observed on storage, indicating development of rancidity which was a major reason restricting the storage of rice bran . Case study of marketing of rice bran revealed that the existing marketing system, was geared to the needs of the village , but the pig and the duck subsystems were found l o be the major consumers of rice bran, leaving the fish subsystems at a disadvantage Seasonal differences in price and availabi1ity was observed depending on the farming activities ln the village. A thesis Submitted in partial fulfilment of the requirements £or the degree of Master o f Science, School of Environment, Resources and Development Thesis (M.Sc.) - Asian Institute of Technology, 1989 Rice bran Fishes Thailand Udon Thani Feeding and feeds Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B17885 http://203.159.5.9/ait-thesis/detail.php?q=B17885 110920 20260817163717.0