MILK PRODUCTION 



185 



The total available energy of this ration is not sufficient 

 for the maintenance of the animals. The yield of milk was 

 just over one gallon, and this must have been produced at the 

 expense of the tissues. No record of the actual weight of 

 the animals is available, but they presented all the appear- 

 ance of being starved, and must very soon have gone dry. 



RATION V 



In this ration the hay alone is more than sufficient for 

 maintenance. The balance of the hay and all the other food 

 is, therefore, available for milk production. The average 

 yield of milk was only about 3 gallons, for which i -4 Ibs. of 

 digestible protein and 5*6 Ibs. of "starch" would be required. 

 This ration must, therefore, be condemned as badly balanced 

 and extravagantly excessive. It would not, of course, be 

 entirely wasted, as some of the excess would be stored up as 

 fattening increase. There is, unfortunately, no record of the 

 live weight of the animal, but it is not generally considered 

 advisable to fatten cows in milk. 



RATION VI. 



