Preston, 2006. Workshop-seminar, 21-24 August 2006, MEKARN-CelAgrid Document reference Preston, T. R., 2006. Forages as protein sources for pigs in the tropics. Workshop-seminar, 21-24 August 2006, MEKARN-CelAgridWeb http://www.mekarn.org/proprf/preston.htmCitation key Preston, 2006Datasheets Black mulberry (Morus nigra)Cassava leaves and foliageDuckweedMalanga (Xanthosoma sagittifolium)Sweet potato (Ipomoea batatas) forageWater spinach (Ipomoea aquatica)