14 



BULLETIN No. 143 



[February, 



As the large barns hold 100 cows, the same allowance of silage 

 per cow for the season would require silo capacity for 620 tons. 

 As the silo in the round barn 90 feet in diameter would be 71 feet 

 deep, it would need to be only 20 feet in diameter to hold 620 tons. 

 To store 620 tons of silage in silos built outside the rectangular 

 barn would require two silos, each 20 feet in diameter and 44 feet 

 deep.* These are the sizes on which the figures for cost of silos 

 of the Curler type, given in Tables 2A and 2B, were used. 



FIG. 10. INTERIOR OF cow STABLE, SHOWING WATER TROUGH WITH FLOAT 



VALVE, SALT BOX, AND DOOR INTO DAIRY. 



The table (page 12) is the final summing up of the cost of all 

 the material for the completed dairy barns, with silos, and shows a 

 saving of from 34 to 58 percent in favor of the round barn and 

 silo, or an actual money saving in this case of from $379 to $1184, 

 depending upon the size and construction of the barns. 



Thoughtlessly, men go on building rectangular barns, but what 

 would this reckless disregard of a possible saving of 34 to 58 per- 

 cent mean in a year's business on the farm? Some illustrations 

 may help us to understand what this money saved in building a 

 round barn really amounts to, and its convenience is also a great 

 saving. If the dairyman discarded the idea of a rectangular barn 



*Since the deeper the silo the more firmly the silag-e packs, one silo 71 feet deep will hold 

 as much as two silos of the same diameter a ml .44 feet deep. 



