25 



Evidently sorghum was in this case of very slight 

 value; for with lot A sorghuml saved only 12 per cent 

 of the graini requireid by lot D to make a pound of 

 gi'owth. Equally unsatisfactory was the growth of 

 lot B, which was made to subsist entirely on sorghum 

 supplemented by peanutis grown without fertilizer be- 

 tween cora rows on very poor sandy land. 



Lot C grew at the rate of 122.5 pounds of live weight 

 pel' acre of cowpeas, which, at 4 cents per pound, gives 

 14.90 as the value of an acre of a moderate crop of ripe 

 co^^•l)eas A\'hen converted into pork. 



The waste was very great, the peas falling on the 

 gi'ound and sprouting before being consumed. In a 

 former experiment (Bulletin No. 93) in which some 

 com was furnished to shoats grazing on nearly ripe 

 cowpeas the results were far more satisfactory, one acre 

 of cowpeas assisted by 1578 pounds of corn making 730 

 pounds of live pork. If we assume that each five pounds 

 of grain formed one pounds of growth, we have 336 

 pounds of live pork, worth at 4 cents |13.44, as the value 

 of an acre of cowpeas alone converted into pork in that 

 test, while in this one an acre of cowpeas alone made 

 much less. 



Lot D made a very satisfactory growth on the mix- 

 ture of one- third cowpea and two- thirds corn meal, only 

 3.74 pounds of this m,ixture being required to make one 

 pound of growth. The rate of growth was several times 

 more rapid Uian with the pigs dependent entirely upon 

 cowpeas or upon sorghum and peanuts, and considerably 

 more rapid thaini with lot A, which received a limited 

 ration of grain and an unlimited supply of sorghum. 



The average daily gain per shoat was 1.18 pounds 

 when a full ration of mixed cowpea and com meal was 

 fed. The average daily consumption of this grain per 

 100 pound of Uvc weight wais 5.19 pounds. 



