... country is white-grained and low in tannin. In contrast, most of the sorghum grown in the Lake Zone, including Shinyanga, Mwanza, and Mara, is brown-grained and high in tannin. Individual farmers ... Tanzania.Minde, I. and Mbiha, E.R. 1993. Production, technology and constraints in sorghum and millet basedfarming systems. Pages 2 8-4 4 in Sorghum and millet marketing and utilization in Tanzania (Minde, ... book-keeping, inventory control, and calculation of trading margins.ReferencesAmira, C.D. 1992. Small grains in monogastric and ruminant feed formulations: prospects and problems. Pages 18 3-1 90 in...