Phiny C and Rodríguez L 2001: Digestibility and nitrogen retention in Mong Cai pigs fed sugar palm (Borassus flabiller) juice and fresh water fish ensiled with rice bran and sugar palm syrup. Livestock Research for Rural Development. Volume 13, Article #17. Retrieved , from http://www.lrrd.org/lrrd13/2/phiny132.htm