Malavanh C, Preston T R and Ogle B 2008: Effect of replacing soybean meal with a mixture of Taro (Colocasia esculenta (L.)Schott) leaf silage and water spinach on apparent digestibility in Mong Cai gilts at two stages of gestation. Livestock Research for Rural Development. Volume 20, supplement. Retrieved , from http://www.lrrd.org/lrrd20/supplement/mala3.htm