DISPOSAL OF IRRIGATED CROPS THROUGH: THE USE OP HOGS. 9 



respectively. The hogs used were good, thrifty stock, but were not 

 uniform in size, varying from 15 to over 100 pounds in weight. The 

 majority weighed about 45 pounds. They were divided into lots and 

 turned on the alfalfa pasture on July 8.. The results obtained in the 

 first period showed that the hogs which were fed grain consumed 

 less alfalfa than those which received no grain. For this reason the 

 number of hogs in the lots in the second period was increased in 

 accordance with the grain fed. The average weights of the hogs in 

 the different lots were fairly uniform, at about 58 pounds. During 

 the first two weeks of the period it was necessary to replace six pigs 

 which developed cholera symptoms. Owing to these changes, the 

 average initial weight per pig in lots 1 and 5 was somewhat higher 

 than the average weight per pig in the other lots. 



As the hogs were weighed only every 15 days, and as the grain 

 ration was based on the initial weight at the beginning of each 15-day 

 period, with a gradual increase to cover the estimated daily gain, it 

 is apparent that the hogs might be fed slightly more or less than the 

 quantity planned, but the difference was small. At the end of the 

 experiment the total amount of grain actually fed was ascertained 

 to have been as follows : Lot 2 was fed 1.1 per cent corn; lot 3 was fed 

 2.06 per cent corn; lot 4 was fed 1.93 per cent ground barley; and 

 lot 5 was fed 2.64 per cent corn. Lot 1 received no grain. 



There were seven pigs, weighing a total of 396 pounds, in lot 1 at 

 the beginning of the experiment. One pig died at the end of the 

 second month, and on August 22, when the plat was becoming over- 

 pastured, a hog weighing 120 pounds was taken out. On September 9, 

 when the growth of the alfalfa had become very slow, four more pigs 

 were taken off the plat. The total gain made by the pigs in this lot 

 from July 8 to October 6 was 102 pounds, or 408 pounds per acre. 

 In lot 2 there were eight pigs, with a total initial weight of 516 

 pounds. On August 22 one pig weighing 119 pounds, and on Septem- 

 ber 9 five more pigs, weighing a total of 391 pounds, were removed 

 because the pasture was becoming overgrazed. This lot made a total 

 gain of 252 pounds from the quarter acre of alfalfa and 495 pounds 

 of corn. In lot 3, which was fed 2 per cent corn, there were 10 pigs, 

 with a total initial weight of 573 pounds. On August 22 one pig, 

 weighing 126 pounds, was taken out, and September 9 six more, weigh- 

 ing a total of 573 pounds, were removed, leaving three pigs with a com- 

 bined weight of 305 pounds. This lot was fed 1,162 pounds of corn and 

 made a total gain of 475 pounds. In lot 4, which was fed 2 per cent 

 barley, there were 10 pigs, having a total initial weight of 561 pounds. 

 To avoid overpasturing the plat, one pig, weighing 92 pounds, was 

 removed on August 22, and six pigs, weighing a total of 439 pounds, 

 were removed on September 9. This lot was fed 1,058 pounds of 

 65731°— Bull. 4SS— 17 2 



