ILLINOIS STATE DAIRYMEN'S ASSOCIATION 319 



The 140 pigs receiving" corn meal as the principal ration ate 

 50,647 pounds of corn meal and 24,189 pounds of wheat mid- 

 dlings, or a total of 74,836 pounds of grain, on which they 

 made 15,891 pounds of gain. 



The pigs receiving the corn meal ate 5,510 pounds more 

 grain and made 2,036 pounds more gain than the 140 pigs re- 

 ceiving shelled corn. 



The pigs receiving the shelled corn consumed an average of 

 501 pounds of grain for each 100 pounds of gain. 



The pigs receiving the corn meal consumed an average of 

 471 pounds of grain per 100 pounds of gain, thus producing 

 100 pounds of gain on 30 pounds less grain than the pigs re- 

 ceiving shelled corn. 



In the eighteen trials there were eleven which showed a sav- 

 ing by grinding, the amount saved varying from 2.5 per cent 

 in Trial 11, to 18.5 per cent in Trial 18. There were seven 

 trials where there was a loss from grinding, the amount lost 

 varying from 1.1 per cent, in Trial 10, to 11.1 per cent in 

 Trial 14. 



The average of the eighteen trials shows a saving from 

 grinding corn of 6 per cent. 



By taking the average gain per pig of both lots in each trial 

 and counting the number of pigs that gained more than the 

 average, and those gaining less than the average, it was found 

 that, with the lots receiving shelled corn as its principal ration, 

 there were 45 pigs that gained more than the average, and 95 

 pigs that fell below the average. 



With the lots receiving corn meal as its principal ration 

 there were 91 pigs that gained more than the average, and 49 

 that fell below the average. 



The economy of grinding corn will depend on the price of 

 corn and the cost of grinding. With an average saving of 6 

 per cent by grinding corn, the following table is constructed 

 to assist the farmer in determining when to grind. 



Table IX. — Saving Effected per Bushel in Grinding Corn for Fattening 



Pigs. 

 Cts. Cts. Cts. Cts. Cts. Cts. Cts. Cts. Cts. Cts. Cts. 

 Whencornis worth. . . 25 30 35 40 45 50 55 60 65 70 75 

 Saved by grinding. ... 1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6 3.9 4.2 4.5 



