22 FARMERS' BULLETIN 743. 



Mixture 24. Per cent of digestible protein, 16.7 : 



200 pounds corn meal. 



100 pounds peanut nieal (with hulls). 



100 pounds cottonseed meal. 



100 pounds wheat bran. 

 Mixture 25. Per cent of digestible protein, 16.4 : 



100 pounds corn meal. 



100 pounds oats, ground. 



100 pounds 'cottonseed meal. 



100 pounds wheat bran. 



The above-named mixtures which contain linseed meal are par- 

 ticularly adapted for use when no succulence is in the ration. 



QUANTITIES OF ROUGHAGE AND GRAIN TO FEED. 



In this connection the general principles brought out earlier in 

 the discussion should always be kept in mind, namely, that eco- 

 nomical feeding demands that the cows be fed to full capacity. To 

 do this and to have the best effect on the individual cow requires a 

 thorough knowledge of feeds and of cows. To give a few prac- 

 tical rules to guide the beginner in obtaining this knowledge is all 

 that has been attempted in this publication. Rules of this nature 

 in reference to the quantities to feed will not be out of place. 



1. Under most circumstances the cow should be fed all the rough- 

 age that she will eat up clean, adjusting the grain ration to the 

 milk production. Only when the cow tends to become over/at should 

 the quantity of roughage be restricted. 



2. A grain mixture should be fed in the proportion of 1 pound to 

 each 3 pints or pounds of milk produced daily by the cow, except in 

 the case of a cow producing a flow of Ifi pounds or more, when the 

 ration can be 1 pound to each 3% or 4 pounds of milk. An even bet- 

 ter rule is 1 pound of grain each day for every pound of butter fat 

 produced during the week by the cow. 



3. Feed all the cow will respond to in milk production. When she 

 begins to put on flesh, cut down the grain. 



INDIVIDUAL FEEDING. 



Different cows have different capacities for converting feed into 

 milk. For this reason the above-mentioned rules can serve only as 

 indicators for the inexperienced feeder. No man who has not a full 

 appreciation of the wide variation in individual cows will be fully 

 successful as a feeder. Some cows may have natural capacity for 

 producing large quantities of milk, and may not receive feed enough 

 for maximum production. By increasing the feed of the highest- 

 producing cows and carefully consulting the milk sheets on which 

 each cow's daily production is recorded, the skillful feeder will soon 

 find that some cows in the herd will respond to the increased allow- 



