THIRTY-SEVENTH ANNUAL CONVENTION. 



259 



more efficient than a narrow one. In view of this it was thought 

 desirable to duplicate the work to see if the results obtained 

 could be substantiated or reasonably duplicated. 



In the second trial the kind, amount, and proportion of feed 

 as well as the general method of recording results, were the 

 same as in the first trial. To add strength to the results, how- 

 ever, it was thought best to reverse the feeding periods. In the 

 first trial the narrow ration was fed during the first and third 

 periods and the medium ration during the second period. In the 

 second trial the medium ration was fed during the first and third 

 periods and the narrow during the second. The number of cows 

 in the first trial was eight, while only five were used in the second 

 trial. The results obtained from the individual cows during the 

 different periods of the second trial are presented in the follow- 

 ing table: 



TABLE III.— Showing Milk, Butterfat Test, Butterfat Yield and 

 Live Weight. 



NO. 

 COW 



PERIOD 



Milk- 

 Pounds 



Butter-fat 



—Per 



Cent 



Butterfat 

 —Lbs. 



Av'age 

 Weight 

 ofCows 

 -lbs. 





I. 



ii. 



III. 



Medium ration 



519.1 

 500.8 

 468.8 



5.60 

 6.00 

 6.15 



29.20 

 30.05 

 27.83 



852 



1 



Narrow ration 



865 





Medium ration 



876 











I. 

 III. 



Medium ration 



632.1 

 591.3 

 499.0 



5.55 

 6.06 

 6.23 



35.08 

 35.83 

 31.10 



903 



2 



Narrow ration 



890 





Medium ration 



899 











I. 



ii. 



III. 



Medium ration 



752.8 

 754.7 

 617.1 



3.7 



3.86 



4.15 



27.85 

 29.13 

 25.61 



934 



3 



Narrow ration 



961 





Medium ration 



993 











I. 



.1. 



III. 



Medium ration 



733.6 

 648.0 

 551.0 



4.75 

 5.62 

 5.73 



34.85 

 36.42 

 31.59 



769 



4 



Narrow ration 



765 





Medium ration 



760 











I. 



n. 



III. 



Medium ration 



636.7 

 581.7 

 536.1 



4.48 

 4.88 



4.77 



28.49 

 28.39 

 25.45 



794 



5 



Narrow ration 



809 





Medium ration 



820 









