July 23, 191 7 Effects on Growth and Reproduction of Rations 



183 



26, A-C. With the addition of the organic salts to the wheat -grain and 

 wheat-straw ration the mature mothers remained in apparently good 

 condition for a very long time, as shown in the illustration of No. 570 

 (Fl 25, E-G). 



These records demonstrate clearly that in the wheat -grain and wheat- 

 straw ration at least two factors were operative against normal nutrition: 

 Poor ash and toxicity; but that a com and wheat-straw ration could be 

 made complete by a suitable ash adjustment, while a wheat and wheat- 

 straw ration could not. 



EFFECT ON REPRODUCTION OF BAKING THE WHEAT 



The extraordinary facts developed in these inquiries that the whole- 

 wheat grain, unless accompanied by certain roughages, was harmful to 

 growth and reproduction suggested inquiry into the possible effect of 

 baking on these nocuous properties. The fact that baking is always 

 resorted to in the preparation of either bolted-flour bread or whole-wheat 

 bread made this phase of the problem important from the standpoint 

 of human nutrition. 



Consequently the grain mixture of the all-wheat ration (wheat 

 grain plus wheat gluten) was sent to a baker, there mixed with water to 

 a dough, molded into loaves, and baked at the usual baking temperature 

 for ordinary white bread. It was then broken up, reground, and fed 

 with wheat straw alone, with straw and organic salts, or with corn 

 stover. In addition to the data on baked wheat, there are also added 

 two records of a medium-grade bolted flour used with com stover. 

 This flour was of a grade commonly used by the bakers of Madison 

 for bread making. The records of reproduction on these rations are 

 shown in Table IV. Plates 26, D-F, and 27 illustrate the condition of 

 the calves and cows receiving these rations. 



Table IV. — Record of reproduction and milk secretion with baked wheat and raio flour 



