148 



LLINOIS DAIRYMEN'S ASSOCIATION. 



actually cheaper. It can be said that the cows in this herd did a very 

 ordinary year's / work, but considering the individuality of each animal in 

 the herd, the general condition of their health, together with unskillful 

 feeding, it is not at all surprising that the results are not better. 



Yearly Record of Best and Poorest Cow in Herd "A," and Average for 



Entire Herd. 





Milk, lb. 



Fat. per 

 cent 



Fat, lb. 



Butter 

 lb. 



Best cow, No. 15 



Poorest cow, No. 37 



6,145 

 1,482 

 3,970 

 3,361 



3.63 

 3.97 

 3.55 

 3.55 



223 



58 



141 



119 



260 

 68 



Average record of cows tested 



164 



Average record of entire herd 



139 







It was found that the average cow must produce about 140 pounds of 

 butter fat last year to pay for her board, since the average price for butter 

 fat, when sold to the creameries, was twenty-two cents. Calculating the 

 results upon that basis, the cows that were tested yielded a profit of 

 twenty-three cents. To ascertain the amount of product yielded by each 

 of the untested cows in the herd for the year, it was necessary to sub- 

 stract the amount of milk and butter fat yielded by the eighteen cows 

 that were tested from the total amount of milk and butter fat that was 

 sold from this dairy. In this calculation a liberal amount of milk was 

 estimated for house use and for feeding of calves. 



Total amount of milk sold from Farm " A " 97,720 lbs. 



Total amount of milk yielded by tested cows 76,060 lbs. 



Total amount of milk yielded by the ten untested cows. 21,660 lbs 



The average amount of milk yielded by each untested cow 2,166 lbs. 



Total amount of butter fat sold from farm A. . . 3,554 lbs. 



Total amount of butter yielded by tested cows 2,751 lbs. 



Total amount of butter yielded by ten untested cows. 803 lbs. 



The average amount of butter fat yielded by each cow untested. 80 lbs. 



Calculating for the whole herd, and estimating that it takes 140 

 pounds of butter fat to pay for a cow's board, there is a loss of $4.54 a 

 cow, or each cow should have produced 20.64 pounds more butter fat to 

 have paid for her keep. 



