Maria Chaveewan Pattanapong creator Gartner, J.A. Chairperson Sornthep Tumwasorn Examination committee Suthad Setboonsarng Examination committee Canadian International Development Agency Scholarship donor text series technical report th Bangkok Asian Institute of Technology 1992 continuing eng 75, [34] leaves : ill. This study a ims to investigate the farming system of livestock farmer in Nang Yao s ub -di strict , Lat Yao district in the province of Nakhon Sawan where cattle are raised with crop cu l tivat ion. Using both interviewed by t h e questionnaire and observed beh avior of the farmers. Information was collected fro m 1 54 livestock farmers. Firs t broa d f i e ld survey to ge t information of overall picture in each system. The data was analyzed by using the Statistic Package for Social Scien ce program (SPSS) . Second sampling 48 farmers for the economic analysis of production within 1991, the study year. Four production systems were identified in the first s urvey of b eef raising. Three production syste ms of pawa , hired labor and owner operated were exten sive syst e m while feedl ot production system was an intensive syst em. Pawa i s a traditional extensive system of beef production where two farmers raised cattle together, one farmer "own " the a nimals a nd l et a nother farmer look after them to get calves . Th e b e nefit is s haring through these ca l ves. Th e study s how effect of economic statu s of far mers influ e n ce the system that accepted. The land is rainfed and topography of the v illage is mountainous a nd highla~d made t h e system of beef cattle improve and available. The result o f cost-benefit analysis shown that pawa production system gave highest rate of return to fa mily labor of 50 Baht per day. Th e owner operation , hired labor for operation and the feed l ot system gave 47, 29 and 14 Baht per day respectively. Pawa production system was most profitable but the owner operation and feedlot system r eceive consistency profit. A Thesis submitted in partial fulfillment of the requirements f or the Degree of Master of Science. Thesis (M.Sc.) - Asian Institute of Technology, 1992 Beef cattle Thailand Nakhon Sawan Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B16518 http://203.159.5.9/ait-thesis/detail.php?q=B16518 111010 20260817171208.0