THE BUILDING OF SILOS. 



29 



This quantity will keep nine cows for one year, allowing sixty 

 pounds of ensilage per day, or eighteen cows six months, or during 

 the winter season. 



A very convenient form of silo is one with two compartments : 

 one could be filled early in September with corn, second crops of 

 grass (rowen), and the other early in June, in our climate, with rye 

 or clover ; as will be understood by annexed diagram, which repre- 

 sents a horizontal section of two silos, or one silo with two compart- 

 ments ; each compartment being thirty feet long, ten feet wide, fifteen 

 feet deep with an eighteen-inch wall running through the centre, 



making the width twenty-one feet and six inches. Both of these silos 

 when filled will hold two hundred and twenty-five tons, or one silo 

 will hold one hundred and twelve and a half tons. Both of these 

 compartments when filled would feed seventeen cows for one year, 

 or thirty-four for six months during the winter season ; or one com- 

 partment filled, holding one hundred and twelve and a half tons, would 

 feed out seventeen cows during the winter season. You will build 

 your silo to conform to the number of stock you wish to keep. If 

 you have ten cows, and you wish to increase to twenty, you had bet- 

 ter build your silo of suitable size to feed twenty. To get at the 

 exact size of silo to feed any number of cows you wish to keep, you 

 will multiply together the length, breadth, and depth of your intended 

 silo, which gives you the cubical contents of the silo. Multiply that 

 product by forty, as there are forty pounds of ensilage to a cubic 

 foot, which gives the number of pounds of ensilage in the silo when 

 filled. Divide this product by twenty-one thousand nine hundred 

 pounds, that being the quantity to keep one cow a year : this will give 

 you the number of cows it will feed. 



