2<>S 



ILLINOIS STATE DAIRYMEN'S ASSOCIATION. 



The results presented in Table I show that with one ex- 

 ception all cows produced more butter fat during the first period 

 than during the second, while in the third period some cows pro- 

 duced a little more, and some a little less butter fat than was pro- 

 duced in the second period. The weight of the cows was prac- 

 tically the same throughout the experiment except of cows Nos. 

 3 and 8. Cow No. 3 gradually lost in weight, while cow No. 8 

 gained during the progress of the trial. Attention is also called 

 to the test of the milk, which was practically lower with most 

 cows during the middle period than either during the preceding 

 or following period. 



The results of the experiment are brought out more forcibly 

 in the following table : 



TABLE II. — Showing Total Yield of Milk and Butterfat and Total 



Live Weight. 



PERIOD 



Milk - 

 Pounds 



Butter-fat 

 —Per 

 Cent 



Butter-fa 

 —lbs. 



Total 



Live 



Weight 



—Lbs. 



I. Narrow ration 



4978.3 



4.90 



237.7 



6623 







II. Medium ration 



4668.3 



4.67 



206.0 



6580 



III. Narrow ration 



4279.3 



4.92 



205.6 



6593 



Average of Periods I and III 



4628.8 



4.91 



221.5 



6610 



Comparing the average results secured in periods I and III 

 with those of period II it is found that the narrow ration produc- 

 ed 7.5 per cent more butterfat, increased the butterfat test 0.24 

 per cent and the total live weight 30 pounds. The milk yield 

 was practically the same. 



Second Trial. 



The results of this trial are rather contrary to matters gen- 

 erally regarded as fairly mixed, namely, that the feed does not 

 influence the richness of milk and that a fairly wide ration is 



