IMPORTANCE OF COW TESTING 



129 



good cows and ten bad ones. An accurate account of 

 feed and milk production was kept: 



Ten most profitable cows. 



1 $123.58 



2 116.96 



3 I o8-74 



4 108.10 



5 IQ 4.i5 



Ten least profitable cows. 



1 (Loss) $1373 



1.62 



6 



7 

 8 



9 



10 



96.66 



95-59 



94-97 

 92.11 



92.02 



2 



3 



4 



5 

 6 



7 



2.84 



3.85 

 7.10 



9.09 



10.27 



8 11. 14 



9 12.07 



10 13-57 



Total $1,032.88 Total $85.28 



From this table the reader will notice that a herd com- 

 posed of 10 of the best cows would yield a profit of over 

 $1,032. Compare with this the meagre profit of only 

 $85 that would come to the dairyman as a result of a 

 year's work with a herd composed of 10 of the poorest 

 cows, and there is at least one evident reason why the 

 farmer who keeps no record of the amount of milk pro- 

 duced and who thinks it of no importance to test the milk 

 for butter-fat fails to make dairying profitable. 



