Nouphone Manivanh, Le Duc Ngoan and Preston T R 2012 Apparent digestibility and N retention in growing pigs fed rice bran supplemented with different proportions of ensiled Taro foliage (Colocacia esculenta) and rice distillers’ by-product.    Proceedings of the International Conference "Livestock-Based Farming Systems, Renewable  Resources and the Environment", 6-9 June 2012, Dalat, Vietnam (Editors: Reg Preston and Sisomphone Southavong) http:/www.mekarn.org/workshops/dalat2012/html/noup24067.htm