168 A YEAR IN AGRICULTURE 



PROBLEMS SHOWING COMPARATIVE VALUE OF Cows 



1. A farmer owns six cows, Bess, Spot, Brindle, Boss, 

 Kate, and Red. 



Bess gives 22 Ibs. milk daily, testing 3.8 per cent butter fat 



Spot gives 15 Ibs. milk daily, testing 4.2 per cent butter fat 



Brindle gives 30 Ibs. milk daily, testing 3.5 per cent butter fat 



Boss ......gives 30 Ibs. milk daily, testing 3.0 per cent butter fat 



Kate gives 14 Ibs. milk daily, testing 3.2 per cent butter fat 



Red gives 24 Ibs. milk daily, testing 5.2 per cent butter fat 



Figure out the yield of each cow, and classify the cows in 

 order of production. 



2. Three herds of ten cows each were compared. The 

 Holstein-Friesians averaged 30 pounds of milk each daily; 

 the Jerseys averaged 25 pounds each daily; the scrub herd, 

 10 pounds each daily. The Holsteins' milk tests 3.4 per 

 cent butter fat, the Jerseys' 5.1 per cent, and the scrubs' 3.5 

 per cent. Which is the most profitable herd? With butter 

 fat at 30 cents per pound, what is the average monthly 

 receipt per cow of each herd? 



Remarkable difference in dairy cows. *Rose was an Illi- 

 nois Experiment Station cow with a record that made her 

 famous. Her total production for twelve years was 87,102.3 

 pounds of milk 43% tons; 10,248 gallons; 1,281 cans of 

 eight gallons each; 106 wagonloads of twelve cans each. Al- 

 lowing three rods for a team, this would make a procession 

 one mile long, six carloads, making a good milk train. 



Butter for twelve years, 4,318.36 pounds, worth at present 

 prices 25 cents per pound, $1,079.59. 



*From Circular No. 106, Illinois Experiment Station. 



