286 AGRICULTURAL CHEMISTRY 



soil. As great a difference is found in the composition 

 of wheats raised in various parts of the United States, as 

 between wheats of different countries where there exist 

 similar varieties of climate and soil. In the case of 

 American wheats, the tables given were compiled before 

 any large number of Northwestern wheats were analyzed, 

 hence the protein content is low because so small a number 

 of wheats of highest protein content are included in the 

 averages. In general, the tables of analyses show that 

 wheat grown in tropical climates is less nitrogenous than 

 that grown in more northern latitudes on equally fertile 

 soils. In making use of the figures given in the follow- 

 ing tables, it should be remembered that the comparisons 

 are only relative as some of the samples contain a much 

 larger amount of moisture than others, and an equal num- 

 ber, or samples proportional to the wheat-growing regions, 

 are not included in the averages. 



389. Wheat as Animal Food. Wheat is not generally 

 used for fattening farm animals because of its high value 

 as human food. Occasionally, however, it is more 

 economical to use it in preference to other grains for the 

 feeding of stock. Experiments have shown that it has a 

 high feeding value. As a food for growing pigs, it is 

 somewhat preferable to corn ; for fattening pigs, there is 

 but little difference between wheat and corn. The best 

 results, however, are obtained when wheat is ground and 

 fed with other grains. A mixture of equal parts of 

 ground wheat and corn gives better results than when 

 either wheat or corn is fed alone. When the price of 

 wheat is low and it can be purchased for the same 



