10 



BULLETIN 1069, TJ. S. DEPARTMENT OF AGRICULTURE. 



are feeding concentrates intelligently, according to known production. 

 That, however, is not at all a general practice outside of the cow-test- 

 ing associations. 



RETURNS FOR $1 EXPENDED FOR FEED. 



The figures in Table 4, also taken from the same tabulation as those 

 in Table 2, show the relation of butterfat production to returns for $1 

 expended for feed, and to feed cost per pound of butterfat. 



50 /OO /SO 200 250 300 S50 400 450 500 

 POUWPS OF &UTrEff/54T PER cow 



Fig. 5. — Relation between butterfat production per cow and the returns from $1 expended 



for feed. 



The returns for $1 expended for feed increased quite regularly, 

 and the feed cost per pound of butterfat decreased quite regularly 



