equipment have been made, and records have been kept for 

 other factors entering into the cost of milk production. The 

 average production of the 326 cows was as follows : — 



Yearly Average of 30.18 Cows. 



Average number of pounds of milk per cow, 

 Average number of pounds of butter fat per cow, 

 Average value of milk per cow per year, 

 Average cost of feed per cow per year, . 

 Average return per cow per year above feed cost. 

 Returns for each dollar's worth of feed consumed. 

 Average cost of feed to produce 100 pounds of milk, 

 Average cost of feed to produce a quart of milk (cents), 



6,463.20 



243.60 



$116 42 



$73 03 



$43 77 



$1 59 



$1 13 



2.40 



The conditions for an economic production from these 

 herds were a great deal better than the average New Hamp- 

 shire conditions (1) because the cows were above the average 

 found in the State (the United States Department of Agri- 

 culture, in co-operation with the New Hampshire Experiment 

 Station in a field survey of four towns in Hillsboro County, 

 including South Lyndeboro, found the average production to 

 be 5,062 pounds per cow, while the average of the above- 

 mentioned herds was 6,463.2 pounds); (2) because the 

 farmers during the year had a monthly opportunity of re- 

 ceiving expert advice on feeding and other factors entering 

 into the economic production of milk (the discussions also at 

 the monthly meetings showed that the majority of the farm- 

 ers were feeding liberally and were studying the whole prop- 

 osition of economic milk production); (3) the fact that 103 

 cows were sold before the end of the year (most of them 

 because they were found unprofitable) tends to show a 

 higher production and a higher profit per cow than if they 

 had been kept throughout the year. 



Summary of Cost of Milk Production.^ 



The following is a summary of the expenses entering into 

 the annual cost of production per cow on a 20-cow dairy 

 farm : — 



1 Detailed information is found in Extension Bulletin No. 2, New Hampshire Experiment 

 Station, Durham, N. H. 



