THIRTY-SEVENTH ANNUAL CONVENTION. 



315 



TABLE 3. — Area of Different Crops and Digestible Nutrients Required 

 To Support a Cow the Summer Six Months. 



CROP 



Pounds 



Digestible nutrients 



Protein 



Carbo- 

 hydrate 



Fat 



Acres required 



For one 

 cow 



For 38 

 cows 



Pasture 



* Green oats 1500 



z Green corn 6000 



Corn (grain) 182 



Total 319 



Nutrients required for one cow 

 producing 11 lbs. milk daily for 

 182 days 235 



235 



860 



66 



1.47 



56. 



15 



106 



7 



.1 



3.8 



54 



678 



42 



.25 



9.5 



15 



122 



8 



.06 



2.28 



1766 



1835 



123 



53 



1. 



71.58 



It will be noted that the protein allowed in the feed ex- 

 ceeds that required, but where the cows are kept on mixed pas- 

 ture during the summer the protein is in excess unless the cows 

 are giving a large flow of milk. 



In this system 1.47 acres of pasture are allowed per cow, 

 and the 56 acres available will support 38 cows. Since it re- 

 quires .1 of an acre of oats and .31 of an acre of corn per cow 

 to supplement the pasture, to support 38 head of cows will re- 

 quire 3.8 acres of oats and 11.78 acres of corn, making a total 

 of 71.58 acres of land to support the herd during the summer 

 six months. 



There are 32.76 acres of oats available for dairy stock, 3.8 

 acres of which are used for soiling and 28.96 acres for winter 

 feeding. There are 34.6 acres of corn available for dairy stock, 

 11.78 acres of which are used for soiling and 22.82 acres for 

 winter feeding. 



* Green oats are figured as yielding 15,000 pounds per acre. The 

 digestible nutrients are figured as including all grain and one-half straw 

 consumed, the analysis of the dry grain and straw being the basis. 



z Green corn and corn silage are figured as yielding 12 tons per acre, 

 and the digestible nutrients are figured from the average composition of 

 silage given in Henry's Feeds and Feeding. 



