EXPERIMENT STATION BULLETINS. 



285 



The first group is composed of two cows, Nos. 13 and 17, each giving 

 nearly 8,000 pounds of milk, making approximately 425 pounds of but- 

 ter, with a profit of .fGO.OO. 



There are eight cows in the second group, each giving approximately 

 7,000 pounds of milk, making 325 pounds of butter, with an average 

 profit of over |40.00. 



In the third group there are nine animals giving betw^een 5,000 and 

 6,000 pounds of milk, making approximately 275 pounds of butter, with 

 a profit of 130.00. 



The fourth group is composted of a single cow. No. 16, giving only 

 1,200 pounds of milk, making less than 50 pounds of butter, and being 

 kept at a loss of |9.88. 



For convenience in comparison these groups are shown in the follow- 



Group IV is intentionally placed after Group I not to show the strik- 

 ing contrast, however apparent the contrast may be, but to enable the 

 reader to take the average of the two groups. If the average of the 

 three cows which make up these groups be obtained it will be as follows : 



Pounds of 

 whole milk. 



5,641 



Pounds of 

 butter. 



301 



Cost of 

 food. 



Value of 

 products. 



Profit over 

 food. 



132.23 $69.24 



136.94 



The average for the same items for the whole herd is : 



Pounds of 

 whole milk. 



6,259 



Pounds of 

 butter. 



Co^t of 

 food. 



Value of 

 products. 



Profit over 

 food. 



298.25 $33.07 $69.65 |36,58 



These averages are strikingly similar. Cow No. 16 not only failed 

 to make a profit, but her deteriorating influence was sufficient to drag 

 down not only one but two outstandingly superior animals to the com- 

 mon level of herd average. 



While many daii*y farmers realize, in a general way at least, the im- 

 portance of weeding out their unprofitable cows, it is doubtful if they 

 appreciate fully the extent of these impeding influences. 



