127 



Sweet potatoes vs. ground corn. 



First period. 



1 i- TIT ' t sweet potatoes. . . 

 "■^ ■ \ i cowpeas (ground) 



CD 



Lbs. 



y\ 36.7 



. i 



]■ (ground) ; 78.5 



l.ot IV.n^^'" 



I. i cowpeas 



Second period. 



T t VT i ^ sweet potatoes i 



■ j i cowpeas, (ground) -^''1 



Lot III. 1 1 ^°^" I (ground) .... 



i. i cowpeas ( ^^ ' 



Totals for 8 weeks (1st and 2nd period.^) 



Ration of If «^«*^''^ Potatoes. 



I i cowpeas, (ground) 



Ration of -[ f ^^'" ^:- (ground^ . . . 



I i cowpeas J ^° 



51.7 



05.8 



130.2 



a 



o 

 o 

 Ex 



4310 

 255.8 



446.7 

 265. 



877.7 

 520.8 



ft . 



8 s^ 



,-5 



L6.S. 



11.74 

 3.42 



15.30 

 5.11 



13.34 

 4.00 



cS O 



5.28 

 3.08 



7.00 

 4.60 



6.00 

 3.60 



^Assuming 90 per cent, of dry matter in corn and peas and 30 per 

 <5ent. dry matter in sweet potatoes. 



la both periods of the experiment the ration containing 

 sweet potatoes was decidedly inferior to that containing corn. 



Taking the results for the entire eight weeks covered by 

 the two periods of the experiment, the increase in live vs^eight 

 was nearly twice as great with the ration containing corn as 

 with the other. In order to produce a pound of increase in 

 live weight there was required 13^^ pounds of the ration made 

 up of sweet potatoes and cowpeas, or 4 pounds of the ration 

 of corn and cowpeas. 



Making allowance for 70 per cent, of water in the pota- 

 toes and 10 psr cent, in each of the grains, there was required 



