The previous paper reports a series of experiments in which three different varieties of soy beans were fed to rats at levels from ten to seventy-three and three tenths percent as the sole source of vitamins B and G. Normal growth was observed on all the levels of each variety of soy bean. The high mortality of the adults on the ten percent level of Virginia soy bean indicated a border line supply of vitamins B and G. Satisfactory lactation was not obtained on any of the experiments where soy beans were included in the diet as the only sources of vitamins B and G. It was therefore deemed advisable to ascertain if the soy bean rations could be supplemented by a single food stuff so that lactation would be normal.
Proceedings of the Iowa Academy of Science
©1930 Iowa Academy of Science, Inc.
Wilkinson, P. D. and Nelson, V. E.
"Some Observations on the Relation of the Composition of the Diet to Lactation,"
Proceedings of the Iowa Academy of Science, 37(1), 227-230.
Available at: https://scholarworks.uni.edu/pias/vol37/iss1/42