36 



cases chiefly shelled corn, with some supplement like cotton- 

 seed meal or linseed meal in a number of cases in both summer 

 and winter, and in other cases, corn alone. The roughness in 

 winter was in most cases timothy hay. In a few cases however, 

 clover or cowpea hay was used. 



COMPARISON OF RESULTS OF SUMMER AND WINTER FEEDING. 



The quality of the cattle used in the different experiments 

 was essentially the same. The cattle used in the winter trials 

 were about six months older than those used in the summer 

 tests. In other words, the summer feeding began in the spring, 

 when the cattle were just two years old, whereas the winter 

 feeding experiment began in the fall, when the cattle were ap- 

 proximately 30 months old. This is to the disadvantage of the 

 winter feeding, because the presumption is that the cattle being 

 six months younger when fed in summer were making gains 

 somewhat cheaper. It will be noted, however, that the average 

 length of the feeding period in the winter trials was only io7 

 days, whereas in the summer experiments it was 210 days, or 

 practically twice as long. This means that the summer fed cat- 

 tle were made much fatter, and it is fair to assume that what- 



