TYPES AND MARKET CLASSES OF LIVE STOCK 179 



2. If the manure is properly conserved and used, dairy 

 farming increases soil fertility. A ton of butter removes only 

 64 cents' worth of plant food from the farm, while a ton of corn 

 removes $6.56 worth of plant food. By feeding the crops and 

 purchased supplementary feeds to dairy cows, the land may be 

 made more productive. 



3. The dairy cow is a continuous source of revenue. The 

 cream or milk checks come in at frequent and regular intervals. 



4. Skim milk is a most excellent feed for hogs and poultry. 



5. Good grade and purebred dairy cows meet with ready 

 sale. 



It is also true that the dairy cow yields about six times as 

 much edible solids in her milk for every 100 pounds of digestible 

 nutrients consumed as the beef steer or mutton sheep in its 

 carcass. The dairy cow is a more economical producer of food 

 for human beings than is the steer, sheep, or pig. 



