~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Second FAO Electronic Conference on Tropical Feeds Livestock Feed Resources within Integrated Farming Systems ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Abstract of twenty seventh paper, from B.X. Men. Questions that might stimulate discussion on this topic include: 1. Do you know other farming systems where ducks play a key role (weeding, fertilization...) as in the Vietnamese ricefields? 2. Are there economical figures demonstrating the benefit of raising ducks in the ricefields? 3. Do you have figures on strategic supplementation of ducks with local feed resources as aquatic plants for protein and sugarcane or palm juice for energy? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ THE ROLE OF SCAVENGING DUCKS, DUCKWEED AND FISH IN INTEGRATED FARMING SYSTEMS IN VIETNAM Bui Xuan Men Faculty of Agriculture, Cantho University, Vietnam E-mail: c/o Dr Thu thu%cantho2%cantho%sarec%ifs.plants@ox.ac.uk ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ABSTRACT There are some 30 million ducks raised annually in Vietnam. Most are scavengers raised seasonally in rice fields during the early growth of the crop and immediately post-harvest; and in backyards or gardens of farm households throughout the year. Duck and fish production has been expanding and contributes to increased income and improved living standards of the farmers, especially for poor farmers in the remote rural areas. Trials on using duckweed cultivated as a partial or complete replacement of protein supplement for feeding crossbred and Muscovy ducks gave encouraging results. The practice of using scavenging ducks to control insects and weeds in the rice fields contributes to decreased investment and brings more benefits for the farmers. Duckweed grown in the integrated farming system is also a high quality feed for fish. KEY WORDS: Ducks, local, scavenging, rice fields, duckweed, fish ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ FAO ELECTRONIC CONFERENCE: LIVESTOCK FEED RESOURCES WITHIN INTEGRATED FARMING SYSTEMS ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ DISCLAIMER: Neither the conference organizers nor FAO accept any legal responsibility for either the contents of this message or any copyright laws that the person sending this electronic message may have violated. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ TO COMMENT: Unless you want to reply only to the person sending this information, please send your comments to the address: TFCONF2-L@MAILSERV.FAO.ORG or TFCONF2-ABS-L@MAILSERV.FAO.ORG ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~