276 



Pork Production 



in others. The most serious criticism against the use of 

 standard shorts or the finer grades of middlings as exclu- 

 sive supplements, however, arises from the large amount 

 or proportion necessary to feed in order properly to 

 balance a straight corn ration. The largest value of 

 these feeds as a class is probably derived from their use 

 in conjunction with other supplements richer in pro- 

 tein, and as a basis for slops in feeding show and breeding 

 stock. 



GENERAL SUMMARY 



Believing that a summarized statement showing the 

 value of standard protein-rich supplements for balancing 

 a ration of straight corn for fattening pigs in the dry lot 

 would be of interest, the data given in the preceding 

 tables of this chapter are brought together in Table 

 CXX. These averages are based on the results of 

 thirty-five experiments comparing rations of corn alone 

 and corn with a protein supplement added. A total 

 of 594 pigs, averaging 118 pounds at the beginning of 

 the tests, was involved. 



TABLE CXX. CORN ALONE VERSUS CORN AND A PROTEIN 

 SUPPLEMENT 



1 Skim-milk and buttermilk reduced to basis of other supple- 

 ments by dividing by 5. 



