A STUDY IN THE COST OF PRODUCIKG MILK. 



31 



Table XV. — Yearly savings in cost of milk production effected on the four farms by dis- 

 placing low-yielding cows with higher-yielding coivs, figured on the basis of data presented 

 in Table XIV. 



(a) DISPLACING A COW PRODUCING 3,000 POUNDS OR LESS. 



Basis of classi- 

 fication (pro- 

 duction of milk 

 per cow). 



Average 



Cost per 



produc- 



100 



tion. 



pounds. 



Pounds. 





2,349.0 



$3.57 



3,648.0 



2.59 



4, 596. 1 



2.29 



5,450.0 



2.10 



6, 445.0 ■ 



1.86 



7,513.5 



1.79 



9,049.0 



1.70 



Cost of 



2,349 

 pounds. 



Saving 



yearly in 



cost per 



cow. 



Performance of cow displaced 



Comparative performance of better cows. 



Pounds. 

 3,000 or less. 

 3, 001 to 4, 000 

 4,001 to 5, 000 

 5,001 to 6, 000 

 6, 001 to 7, 000 

 7,001 to 8,000 

 Over 8, 000 



$83.90 

 60.84 

 53.79 

 49.33 

 43.69 

 42.05 

 39.93 



S23.06 

 30.11 



34.47 

 40.21 

 41.85 

 43.97 



(6) DISPLACING A COW PRODUCING 3,001 TO 4,000 POUNDS. 



Performance of cow displaced 3,001 to 4, 000 



14, 001 to 5, 000 

 5, 001 to 6, 000 

 6, 001 to 7, 000 

 7, 001 to 8, 000 

 Over 8,000 



3,648.0 



%2.59 



4,596.1 



2.29 



5, 450. 



2.10 



6,445.0 



1.86 



7, 513. 5 



1.79 



9,049.0 



1.70 



Cost of 3,848 

 pounds. 

 $94. 48 

 83.54 

 76.61 

 67. 85 

 65.30 

 62.02 



17.87 

 26.63 

 29.18 

 32.46 



(c) DISPLACING A COW PRODUCING 4,001 TO 5,000 POUNDS. 



Performance of cow displaced 



Comparative performance of better cows. 



4,001 to 5,000 

 5,001 to 6,000 

 6,001 to 7,000 

 7, 001 to 8, 000 

 Over 8, 000 



4,596.1 



$3.29 



5, 450. 



2.10 



6,445.0 



1.86 



7, .513. 5 



1.79 



9,049.0 



1.70 



Cost of 

 4,596.1 

 pounds. 

 $105. 04 

 96.52 

 85.49 

 82.27 

 78.13 



88.52 

 19.55 

 22.77 

 26.91 



(d) DISPLACING A COW PRODUCING 5,001 TO 6,000 POUNDS. 



Performance of cow displaced 



Comparative performace of better cows. 



5, 001 to 6, 000 



6, 001 to 7, 000 



7,001 to 8, 000 



Over 8, 000 



5,450.0 



$2. 10 



6, 445. 



1.86 



7,513.5 



1.79 



9,049.0 



1.70 



Cost of 5,450 



pounds. 



$114..'f3 



101. 37 



97. 56 



92.65 



$13. 05 

 16..% 

 21.77 



(e) DISPLACING A COW PRODUCING 6,001 TO 7,000 POUNDS. 



Performance of cow displaced 



Comparative performance of better cows. 



6,001 to 7,000 



6,445.0 



$1.86 



7, 001 to 8, 000 



7,513.5 



1.79 



Over 8, 000 



9, 049. 



1.70 



Cost of 6,44s 

 pounds. 



$im. 03 



115. 37 

 109. 57 



84.66 

 10.46 



From the standpoint of economic milk production it would seem 

 that the easiest step in the building up of a poor dairy herd is rela- 

 tively the most profitable. Certainly the step from the poor cow to 

 the cow of medium capacity is the one which promises the largest 

 dividends on a modest expenditure of money and effort. In this 

 connection the reader should study Table XV, which shows the 

 gains resulting from progressively displacing a low-yielding cow with 



