CHAPTER XIII. 

 AUTHOR'S METHOD OF FEEDING. 



Since the common practice of swine feeding needs fur- 

 ther development, and since the Wolff-Lehmann stand- 

 ard does not give maximum and most economical gains, 

 a new method of feeding has been developed. This work 

 was started by the writer in 1898 at the Wisconsin Agri- 

 cultural Experiment Station, continued for several years 

 by practical swine growing on the farm in which scien- 

 tific data were put into practice, and then continued in an 

 > experimental way since 1903 at the Illinois Experiment 

 Station, and is still in progress. Although this new 

 standard has not yet been definitely developed in every 

 detail, sufficient headway has been made and enough 

 facts of importance have been determined to warrant a 

 discussion of this new system of feeding. 



FACTORS IN FEEDING. 



In the cut on page 148, taken from a prospective 

 bulletin manuscript as well as part of the discussion rela- 

 tive thereto, the vertical lines represent the age of the 

 pigs in weeks as shown at the top. A D represents the 

 live weight from the time they were 17 weeks old, when 

 the experiment started, up to the close when they were 

 46 weeks old. As the feed is calculated in per cent of 

 live weight, and in order to make the illustration more 

 simple, this is represented as constant. The space be- 

 tween the curves L and A represents the total amount of 

 feed eaten daily in per cent of live weight multiplied by 



(147) 



