324 



ILLINOIS STATE DAIRYMEN'S ASSOCIATION. 



13 pounds of corn and 15 pounds of alfalfa hay, with the ex- 

 ception of a six weeks' rest period during the winter, when no 

 grain is fed*, they will consume 7.98 acres of corn and 4.05 acres 

 of alfalfa, or 12.03 acres in all. To this 12.03 acres add 8 acres 

 required for roads, yards, etc., making 20.03 acres to be taken 

 from the farm for these purposes. This leaves a total of 139.97 

 acres — 87.02 acres of corn and 52.95 acres of alfalfa — available 

 for dairy stock. 



During the summer six months, or 182 days, the -cows 

 should produce an average of 13 pounds of milk per day, and 

 would require the following ration: 



Ration No. 4. 



FEED 



Pounns 



Digestible nutrients 



Protein 



Carbo- 

 hydrate 



Fa 



Nutritive 

 ratio 



Silage 40 .36 4-52 .28 



Alfalfa hay 13.5 1.49 5.34 .17 



Total nutrients 1.65 9.86 .45 



Nutrients required for 1100-lb. cow- 

 Producing 13 pounds milk daily.. 1.38 10.51 .32 



1:5.9 



TABLE 11. — Feed and Acreage for One Cow for the Summer Six Months. 





Pounds fed per cow 



Acres per 

 cow 



Corn silage 



Alfalfa 



7280+5% waste = 7644 



2457 



.32 

 .31 



.63 



This shows that it takes .63 of an acre to supply the feed for 

 one cow during the summer six months. 



*It has been demonstrated at the University of Illinois that this is 

 a practical ration to feed horses. 



