Fattening Pigs in the Dry Lot 



263 



taining 20 per cent of soybean meal. This was true in 

 every experiment but one, in which the gains were prac- 

 tically the same. Since tankage contains nearly double 

 the quantity of protein, 1 pound of tankage is about as 

 effective" as 2 pounds of soybean meal in balancing a 

 corn ration. As a rule in these experiments, tankage 

 proved to be the more palatable. 



In feed required to produce 100 pounds of gain, 42.5 

 pounds of tankage and 1.34 of corn were equivalent to 

 69.92 pounds of soybean meal. This would give for 

 tankage and soybean meal the relative values shown 

 in Table CVIII. 



Table CVIII. — Value op Tankage as Affected by Price 

 OF Corn and Soybeans 



When com and soy- 

 bean meal are 

 worth 



Com 56^ 



per bushel 

 Soybean 



meal S30 



per ton 



Com 70; 



per bushel 

 Soybean 



meal $40 



per ton 



Com 84^ 

 per bushel 



Soybean 

 meal $45 

 per ton 



Com 98^ 

 per bushel 



Soybean 

 meal S50 

 per ton 



Com $1.40 

 per bushel 



Soybean 

 meal $75 

 per ton 



Tankage is worth 



$48.72 per 

 ton 



$65.02 per 

 ton 



$73.08 per 

 ton 



$81.16 per 

 ton 



$121.81 per 

 ton 



Summary. 



The sum total of all the experimental evidence con- 

 sidered in the preceding pages supports the conclusion 

 that high-grade tankage or meat-meal stands next to 

 skim-milk as a supplement to corn for fattening pigs 

 in the dry lot. For feeding pigs on forage there is every 

 reason to believe that its relative efficiency is as great. 

 Like skim-milk tankage is an animal food, and chemists 

 have determined that the proteins contained in animal 

 foods comprise a more suitable combination of muscle- 

 building constituents than is contained, as a rule, in the 



