TAILIEUCHUNG - Báo cáo nghiên cứu nông nghiệp " Testing a practical artificial diet for mud crab, Scylla paramamosain, on grow-out in Mekong Delta, Vietnam "

To obtain the best practical diet (in terms growth rate, survival rate, feed conversion ratio and water quality) which can replace the Vital feed (an expensive feed for Kuruma prawn) and trash fish under laboratory conditions. Activities 1. Conduct Experiment 1: to test three practical diets: a) the "best" diet from Vu-anh Tuan' s PhD research; b) Diet a) plus additives (., vitamins and minerals); and c) Diet b) with further supplement (., vitamins and minerals plus mixed enzymes). 2. Conduct Experiment 2: To compare the "best practical diet" from experiment 1, with Vital feed and trash fish (small tilapia). | Project Number VIE36 IF04 Project Title Testing a practical artificial diet for mud crab Scylla paramamosain on grow-out in Mekong Delta Vietnam Vietnamese Institution Research Institute for Aquaculture No. 2 Australian Institution Charles Darwin University Commencement Date May 2006 Completion Date December 2006 Objectives To obtain the best practical diet in terms growth rate survival rate feed conversion ratio and water quality which can replace the Vital feed an expensive feed for Kuruma prawn and trash fish under laboratory conditions. Activities 1. Conduct Experiment 1 to test three practical diets a the best diet from Vu-anh Tuan s PhD research b Diet a plus additives . vitamins and minerals and c Diet b with further supplement . vitamins and minerals plus mixed enzymes . 2. Conduct Experiment 2 To compare the best practical diet from experiment 1 with Vital feed and trash fish small tilapia Miles ones Expected Nbr Milestone Description Deliverables Date 1 CARD Contract Signed Research Agreement signed. Milestones and payment schedules in place Apr. 2006 2 Research Report A summary report of all trial results including data of survival growth rate total bacteria and water quality feed conversion ratio and financial analysis of feed treatments. Dec. 2006 PROJECT COMPLETION REPORT 1. Introduction Although mud crab aquaculture has been rapidly expended throughout South East Asian countries most culture systems depended heavily on low value fish trash fish as feeds Sugama 1998 . In general trash fish has been shown to be suitable for mud crab culture but there are some disadvantages. Trash fish may not always be available particularly in the wet season and there are extra costs such as electricity and a freezer necessary for storage William Abdullah 1999 . Furthermore utilisation of juvenile fish as trash fish which would otherwise be consumed by the coastal local population can impact on fisheries due to the removal of juveniles of commercially valuable .

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