DISPOSAL OF IRRIGATED CROPS THROUGH THE USE OF HOGS. 13 



For the entire season of 1915, as shown in Table IV, the gains per 

 acre were as follows: Lot 1, 612; lot 2, 1,45(5; lot 3, 2,976; lot da, 

 2,760; lot 4, 2,772; and lot 5, 4,21)2 pounds. The lot that was fed 3 

 per cent corn made seven times as much gain as the lot which re- 

 ceived no grain. The grain consumed for each pound of gain in- 

 creased with the grain ration. It required 1.5 times as much grain 

 for each pound of gain where a 3 per cent corn ration was fed as it 

 did where only a 1 per cent corn ration was fed. For every 100 

 pounds of grain fed the 1 per cent corn lots gained 53 pounds; the 

 average of the 2 per cent grain lots was 40.4 pounds; and the 3 per 

 cent corn lots gained 35.3 pounds. 



When the gains made are figured at $7 per hundredweight and the 

 lots charged $1.07 per hundredweight for corn and $1 for ground 

 barley, the net returns per acre for alfalfa pasture were as follows: 

 Lot 1, $42.84; lot 2, $72.48; lot 3, $132.91; lot 3«, $120.49; lot 4, 

 $126.76 ; and lot 5, $170.24. From April 26 to September 27, a period 

 of 154 days, the hogs gave an average daily net return ranging from 

 28 cents, where no grain was fed, to $1.10, where 3 per cent corn was 

 fed. At this rate a 10-acre alfalfa field pastured with hogs getting 

 a 3 per cent ration of corn would pay $11 net per day, whereas if no 

 grain was fed the same 10-acre field would return only $2.80 per day. 

 The no-grain lot paid at the rate of $42.84 an acre for alfalfa pas- 

 ture. When the grain-fed lots are charged the same amount for the 

 pasture, they still paid very liberally for the grain fed, as is shown in 

 Table IV. 



The equivalent paid for hay by the different lots greatly increased 

 with the grain ration. The no-grain lot returned an equivalent of 

 $9.58 ; the 1 per cent lot, $16.21 ; the average of the 2 per cent grain 

 lots, $28.21 ; and the 3 per cent grain lot paid $38.07 per ton, or four 

 times as much as the no-grain lot. This fact, together with the high 

 price paid for the grain, emphasizes the advisability of feeding grain 

 in connection with alfalfa pasture in order to realize the highest re- 

 turn from both the grain and the alfalfa crops. 



SUMMARY OF THE TWO YEARS' RESULTS. 



The results of the experiments in 1914 and 1915 with alfalfa pas- 

 ture and various grain supplements are summarized in Table V. 

 As two lots of hogs were used each year in each part of the test, the 

 figures in Table V show the average of the results secured from four 

 lots of hogs in each instance. The figures have been calculated to an 

 acre basis. 



The results of two years' work show that hogs on alfalfa pasture 

 without grain produced an average of 644 pounds of gain per acre. 

 The same area of pasture, with the addition of 3,174 pounds of corn, 



