“…In the first assay, rice flour or casein was added to a basal diet in amounts to provide 1, 2, 3,4, and 5 % of protein. The basal diet contained 4% mineral mixture (Hegsted et al, 1941), 5% refined cottonseed oil, 1% cod liver oil, 90% refined corn starch, and 5 ml/100 g of diet of a complete vitamin mixture (Manna and Hauge, 1953). The rice or casein replaced an equivalent weight of the corn starch.…”