BREEDS OF BEEF CATTLE 



30(9 



Feed. 



Total dry 

 matter. 



Digestible 

 protein. 



Energy 

 value. 



Pounds. Pounds. Therms. 



Corn forage 57.8 2.13 30.53 



Cloverhay 84.7 5.41 34.74 



Cornmeal 8&.1 6.79 88.84 



Wheat bran 88.1 1O 21 48.23 



Glutenfeed 91.9 19.95 79.32 



The cows average 850 pounds per head and have produced in 

 previous years an average of 20 pounds of milk per day. According 

 to the table above, the maintenance requirement of such animals 

 per day and head would be approximately 



Digestible protein pound . . 0.45 



Energy therms . . 5.60 



For the production of 20 pounds of milk of average quality there 

 would be needed. 



Digestible protein (0.05X20) pounds.. 1 



Energy (0.3X20) therms.. 6 



The total feed requirements per day and head are therefore : 



Digestible Energy 

 protein. value. 



Pounds. Therms. 



For maintenance 0.45 5.6O 



For milk production , 1.00 6.00 



1.45 11.60^ 



The problem, then, is to find a mixture of the available feeding 

 stuffs which will yield these amounts of digestible protein and of 

 energy and which shall have a suitable bulk. The first step in the 

 construction of a ration is to fix upon the amounts of coarse fodders. 

 It is usually desirable to use as large a proportion of these as possible, 

 since they are usually cheaper sources of food than grain. On the 

 other hand, the amount of them which an animal can consume is 

 limited. Much depends upon the individual animals, and the proper 

 amount can only be told by trial, but it is aimed to get from 12 to 14 

 pounds of dry matter in the form of coarse fodder. Corn forage 

 being a cheap feeding stuff, it is best to use this freely, with prob- 

 ably some hay for variety. By a little trial, it is found that 14 

 pounds of corn forage and 6 pounds of clover hay will give us 12 

 pounds of dry matter and the amounts of digestible protein and of 

 energy shown below: 



Kind and amount of feed. 



Total dry 

 matter. 



Digestible 

 protein. 



Energy, 

 value. 



Corn forage. 12 pounds , 

 Clover bay. 6 pounds . 



Total. 



Pounds. 

 6.94 

 5.08 



12.02 



Pounds, 



0.26 



.32 



.58 



Therms. 

 3.66 

 2.08 



6.74 



