Sweet Potato Leaves for Pigs

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Sixteen sweet potato varieties were evaluated with respect to the bio mass yield of the leaves, stems and tubers under different leaf harvesting intervals and defoliation techniques with the aim of selecting the best varieties for forage production. The biomass yields of leaves, stems and tubers were found to vary according to variety, season and defoliation technique. Sweet potato leaves can be used for feeding pigs in fresh, dry and ensiled forms. Sweet potato leaves are high in protein content compared to other protein-rich forages. Lysine is the first limiting amino acid. Growing pigs fed sweet potato leaves with addition of synthetic lysine had daily live-weight gains which was similar to that of pigs fed fish meal as the protein source. The study in this book is concluded that Sweet potato leaves can be considered as a potentially valuable protein source for pigs under small farm conditions.