Sengsouly P, Visam V, Sangkhom I and Preston T R 2012: Effect on growth performance of ducks of supplementing a basal diet of rice bran with water spinach, duckweed or ensiled taro leaves. Livestock Research for Rural Development. Volume 24, Article #53. Retrieved , from http://www.lrrd.org/lrrd24/3/seng24053.htm