Chittavong Malavanh, Preston T R and Brian Ogle B 2007 Effect of replacing soybean meal by a mixture of taro leaf silage and water spinach on reproduction andpiglet performance in Mong Cai gilts.  MEKARN International conference on "Matching Livestock Systems with Available Resources". (Editors: T R Preston and B Ogle), 26-27 November 2007, Ha Long Bay, Vietnam http://mekarn.org/prohan/abstracts/malavan.htm