162 RESULTS OF EXPERIMENTS IN SWINE FEEDING 



over linseed meal in these tests, the difference is not very 

 marked. 



Linseed Meal. Professor Forbes, of the Missouri Experi- 

 ment Station, reports results of an experiment in which 100 

 pounds of a mixture of five parts corn to one part linseed meal 

 proved equal to nearly 148 pounds of corn alone. 



Tankage. The Indiana. Experiment Station was among 

 the first to test tankage as a supplement to corn. In this trial, 

 feeds were valued as follows: Corn meal, $20.00 per ton; 

 shorts, $16.00 per ton; tankage, $30.00 per ton. This method 

 of valuing feeds is very -much more in favor of tankage, as 

 compared with corn, than the system that is followed in Ne- 

 braska. 



The cost of 100 pounds of gain under this valuation of 

 feeds was as follows: 



Lot I. 10 parts corn meal, 1 part tankage $3.80 



Lot II. 5 parts corn meal, 1 part tankage 4.00 



Lot III. Corn meal only 5.20 



Lot IV. 10 parts mixture of corn and middlings, 1 part tankage. . 3.60 



There were four pigs in each lot, and lot I gained 4.63 

 pounds per day; lot II, 4.91 pounds; lot III, 2.68 pounds; 

 and lot IV, 4.55 pounds: a striking illustration of the effect of 

 tankage upon the rate of gain. 



Summary. Many other instances of the effect of supple- 

 mentary feeds with corn might be given if space permitted. 

 Sufficient tests have been quoted to establish a few important 

 points which may be enumerated as follows: 



1. Corn alone falls far short of being an ideal ration for 

 hogs. It is especially injurious to young pigs, resulting in 

 lack of growth, weakness of bone, and expensive gains. 



2. When wisely combined with a supplementary feed 



