184 RESULTS OF EXPERIMENTS IN SWINE FEEDING 



Four groups of pigs eleven weeks old were used in the 

 test, and all groups were fed a meal mixture composed of corn 

 meal, wheat middlings, wheat bran, and linseed meal. 



Lots 1 and 2 were given free access to soft coal and charcoal, 

 respectively, lot 3 was fed one ounce of the tonic to every 10 

 pounds of meal, and lot 4 was fed nothing but the meal ration. 



The average daily gain per pig in the four lots was as 

 follows: Soft coal, .695 pound; charcoal, .738 pound; tonic 

 mixture, .958 pound; no corrective, .614 pound. 



The cost of producing 100 pounds gain in weight was as 

 follows : 



Lot 1. Lot 2. Lot 3. Lot 4. 



Soft coal. .Charcoal. Tonic. Nothing. 



Meal $5.93 $5.42 $4.74 $5.84 



Corrective . .20 .14 .11 



Total cost $6.13 $5.56 $4.85 $5.84 



It will be noticed that the lot receiving the tonic mixture 

 made the most rapid and most economical gains, the lot receiv- 

 ing charcoal coming second. The hogs which were allowed 

 acces's to soft coal made greater gains than those fed meal 

 alone, but the gains were more expensive. It is stated that the 

 hogs fed correctives had a decidedly better appetite than those 

 which received none. 



The experiment indicates that correctives or tonics may be 

 used to advantage at times, but that it is easily possible to 

 pay too much for them. 



REVIEW. 



1. What can you say of the value of Canada field peas for swine? 

 In what forms are they fed? 



2. In what ways is barley better than corn for certain lines of pig 

 feeding? 



3. Why is barley not used more? 



4. Discuss the value of wheat for swine. 



5. May frosted wheat be used with good results? 



