80 



conditions. It seems probable that much of this variation is due to 

 differences in the temperament of the animals. Obviously, the main- 

 tenance requirement of a quiet, placid animal will be considerably 

 less than that of a restless one. 



The individuality of cows, therefore, and especially in the 

 matter of their responsiveness to feed 1 , ought to be a matter of con- 

 tinual study to the dairyman. 







HOW TO USE THE TABLES OF COMPOSITION AND THE FEEDING STANDARDS. 



To show how to use the tables of feed composition as given on 

 page 117 et seq. } in such a way as to learn the probable value of a 

 given ration, or to compound an entirely new ration, the feeds avail- 

 able being known, the following problems and their solutions are 

 given. 



Problem 7. ' To a thousand-pound Ayrshire cow, yielding 30 

 Ibs. of milk a day, there is being fed 35 Ibs. corn ensilage, 10 Ibs. cut 

 oat straw, 5 Ibs. clover hay, 3 Ibs. bran and Q Ibs. crushed oats. Could 

 this ration be improved upon, and, if so, how?.' 



Discussion. Reference to the Feeding tables shows the following 

 to be the feeding value of the ration described : 



This ration, according to any or all of the Feeding Standards 

 given, is evidently much too wide, and to correct this condition it 



