SILAGE SOILAGE THE PREPARATION OF FEED 265 



This table shows, for example, that when filling is completed in a silo 

 14 feet in diameter, filled to a depth of 30 feet, there will be about 80 tons 

 of silage. If the silage is 26 feet deep after settling in a silo 12 feet in 

 diameter, there will be about 56 tons of silage. 



To estimate the amount of silage remaining in a silo after part has 

 been fed out, find the actual depth left and estimate the original total 

 depth of silage after settling. Then compute the amount as follows: 

 Let us suppose that 10 feet of silage is left in a silo having a diameter 

 of 14 feet, and that after settling one month the entire depth of silage was 

 about 28 feet before feeding started. From the table we find that at first 

 the silo contained 83 tons. The first 18 feet of silage, which was fed out, 

 would weigh about 51 tons, according to the table. The difference, or 

 32 tons, is the approximate weight of the silage left. 



Approximate capacity of cylindrical silos in tons of corn silage 



A. Capacity when filling is completed.* 



Inside diam. in feet Depth of silage in feet . 



18 20 22 24 26 28 30 32 34 36 38 40 



10 20 23 26 30 33 37 41 



12 28 33 38 42 48 53 58 64 70 



14 38 45 51 58 65 72 80 87 95 103 111 120 



16 50 58 67 76 85 94 104 114 124 135 145 156 



18 64 74 84 96 107 119 132 144 157 171 184 198 



20 78 91 104 118 132 147 162 178 194 211 227 244 



22 95 110 126 143 160 178 196 215 235 255 275 296 



B. Capacity after silage has settled one month or more.** 



Depth of silage in feet 



8 10 12 14 16 18 20 22 24 26 28 30 



10 11 14 17 20 23 26 29 33 36 39 43 46 



12 16 20 24 29 33 38 42 47 52 56 61 66 



14 21 27 33 39 45 51 58 64 70 77 83 90 



16 28 35 43 51 59 67 75 84 92 100 109 118 



18 35 44 54 64 75 85 95 106 116 127 138 148 



20 43 55 67 80 92 105 118 130 144 157 170 184 



* A. If corn is unusually dry when ensiled, deduct 10 per ct. from the capacity given. If corn is dry 

 and very little grain is present, deduct 15 per ct. If silo is filled rapidly and no time is allowed for settling, 

 deduct 10 per ct. 



**B. For corn ensiled when less mature than usual add 10 to 15 per ct. to the capacity given. If 

 corn is unusually rich in grain, add 5 to 10 per ct. If corn is unusually dry when ensiled, deduct 10 to 15 

 per ct. If very little grain is present, deduct 10 per ct. 



417. Proper size of the silo. The diameter of the silo should be gauged 

 by the number and kind of animals to be fed from it, and its height by the 

 length of the feeding period. The silo should be of such diameter that 

 in the cooler part of the year at least 1.5 inches, and preferably 2 inches, 

 of silage will be removed from the entire surface daily to keep the sur- 

 face from spoiling. When silage is used for summer feeding somewhat 

 more should be removed daily. The exact size of silo required may be 

 computed from the length of the feeding period and the amount required 

 daily for the different kinds of stock, as shown on Page 262 and in the 

 respective chapters of Part III. Knowing the number of animals of each 



