314 



IOWA DEPARTMENT OF AGRICULTURE. 



but later, when they had grown larger, they were supplied with additional 

 grain from a trough, with the following results: 



The above shows that shoats secured much of their feed from the 

 droppings, and that the droppings from steers getting dry corn gave the 

 best returns. 



By combining the data of feed and gain with both hogs and steers 

 we ascertain the gain required for the combined gain as follows: 



TOTAL GRAIN 



FED TO STEERS 



AND SHOATS. 



TOTAL GAIN 



OF STEERS 



AND SHOATS 



CORN FOR 



100 POUNDS 



GAIN. 



Steers fed dry corn with shoats following 

 Steers fed soaked corn wiih shoats following 



17, 516 lbs. 

 17, 059 lbs. 



2,215 lbs. 

 2,267 lbs. 



791 lbs. 

 752 lbs. 



Combining the feed for steers and shoats and likewise the gains of 

 both, we find that 791 pounds of corn were required for 100 pounds of 

 gain of steers and shoates where the steers were fed dry corn, and 752 

 pounds of grain for 100 pounds of gain with steers and shoats where the 

 steers were fed soaked corn. This shows a net saving, by soaking corn 

 for steers, of about 5 per cent. 



From the above data we deduce another table entirely to our purpose 

 in making this reply. Let us assume that 500 pounds of corn would have 

 put on -lju pounds of gain with the hogs used in this experiment had they 

 been fed entirely on corn supplied them in the pen. This is the only 

 assumption we will have to make, and it is an entirely reasonable one in 

 this case. On the basis that 500 pounds of corn would put on 100 poundr- 

 of gain, the 1,272 pounds of extra corn for the hogs directly would have 

 made 254 pounds of gain. Subtracting this sum from the total gains made 

 by the hogs in each case, we have the gains which should be credited 

 to the corn the hogs secured from the droppings of the steers. Dividing 

 the total corn fed the steers in each case by the gains of the hogs due to 

 the corn in the droppings, we get the following summary table: 



WHEN DRY 



CORN WAS FED 



TO STEfcRS. 



WHEN SOAKED 



CORN WAS FED 



TO STEERS. 



Corn fed to steers for each 100 lbs. of net gain made by hogs 

 following theni 



Net gain made by hogs for each 100 lbs. of corn fed to the 

 steers 



3, S00 lbs. 

 3 lbs. 



1. 150 lbs. 

 2 4 lb.-. 



The above table shows that in this experiment for each 3,300 pounds 

 of dry corn which the *teers consumed the hogs made 100 pounds of 

 gain, or 100 pounds of corn fed to the steers produced three pounds of 



