FEEDING FARM ANIMALS 



The cows average, let us say, 1,000 pounds in 

 weight, and yield on an average 30 pounds of milk 

 daily. According to the standard the total feed 

 requirements per day and head will be as follows: 

 Dry matter, 27 to 33 pounds ; digestible protein, 2.2 

 to 2.5 pounds; starch value, n.8 to 13.9 pounds. 



The first step is to determine the starch value of 

 each of these feeding stuffs. Taking the feeds in 

 order, the following calculation will be made : 



1. Starch value, 100 pounds linseed cake = ( (25 



X .94) + 32 + (9-5 X 2.4) ) X -97 = 76.3 



2. Starch value, 100 pounds oats = ( (9 X -94) + 



45 + (5 X 2.1) ) X -95 = 60.8 



3. Starch value, 100 pounds clover hay = (5.4 X 



.94) + (38 (25 X 0.58) + (1.5 X 1.9) = 



30-9 



4. Starch value, 100 pounds green alfalfa = (2 



X .94) + (9 (7 X 36) +_ (0.5 X 1.9) = 



9-3i 



The next step in the construction of the ration is 

 to choose the quantity of each feed that is to be used. 

 This will be governed by what is good practice, 

 leaving the actual balancing of the ration to the con- 

 centrates that are to be supplied in addition. As a 



