164 SWINE IN AMERICA 



i;rowiiig- i)igs with a inininuini quantity of grain and a 

 maxiniuni of alfalfa, milk and whey, or other cheap 

 foods," numerous experiments have been conducted to 

 demonstrate the status of pasturage and soiling (Bulle- 

 tins Nos. 40, 70 and 94 ). X'arious tests with pigs fed by 

 soiling compared with others on a grain ration (Bulletin 

 Xo. 70) gave from the soiling a saving of nearly ten per 

 cent in the feed required to make one pound of gain, 

 besides a daily gain nearly one-fourth of a pound better. 



From 1890 to 1902 more than 100 tests were made at 

 the Utah station, which were of direct or comparative 

 xalue regarding pasturage and soiling for swine. Aver- 

 age results of these are given in the table on page 165, 

 from Bulletin No. 94 of the Utah station, in which con- 

 clusions are drawn from the experiments. 



The following comment was made in the bulletin con- 

 taining the following table concerning the results of us- 

 ing part-grain and full-grain rations in connection with 

 pasturage: "The table shows that 14 tests were made, 

 with 43 hogs on pasture and given a part-grain ration. 

 It is obvious that the hogs fed on the light-grain ra- 

 tions did proportionately much better than those fed with 

 a full-grain ration ; that is, the gain per day was greater 

 than the ration of grain would indicate, showing that the 

 hogs ate a large proportion of pasture grass and made 

 good use of it. A simple calculation will show this. The 

 hogs fed a full-grain ration on pasture made an average 

 gain of 1.22 pounds per day. Theoretically, those fed a 

 three- fourths-grain ration should have gained but .91 



