GROWTH 423 



of a small paddock in which they can root stimulates the growth 

 of pigs to a degree quite out of proportion to the amount of 

 actual feed thus obtained. Furthermore, they have shown 

 that, with both pigs and cows (438), rations consisting exclu- 

 sively of wheat products seem to have a direct effect in hinder- 

 ing growth. The subject is one which is hardly ripe for dis- 

 cussion, but it opens up an interesting field for investigation, 

 while it emphasizes the importance of variety in rations. 



No data have been published regarding the percentage 

 utilization of the feed actually consumed in these experiments 

 as measured by the amount of growth actually made on the 

 inadequate rations. 



