Arigbede O M, Anele U Y, Olanite J A, Adekunle I O, Jolaosho O A and Onifade O S 2006: Seasonal in vitro gas production parameters of three multi - purpose tree species in Abeokuta, Nigeria. Livestock Research for Rural Development. Volume 18, Article #142. Retrieved , from http://www.lrrd.org/lrrd18/10/arig18142.htm