160 



Pork Prodtiction 



in Table XXXIX. These trials covered periods of 80 days 

 for the shortest and 190 days for the longest period. 

 Three-fourths to full grain rations were fed, consisting 

 of either com alone or corn supplemented with a small 

 proportion of tankage. 



Table XXXIX. — Sttmmabt: Ai^falfa vebsub Rape 

 (Av. 10 Exps.) » 



It would appear from these average results that alfalfa 

 is a somewhat better forage crop than rape. Although 

 the pigs on rape required less grain for a imit of gain, 

 those on alfalfa made slightly faster gains. A small 

 but important difference in favor of the alfalfa is also 

 shown by the larger number of pigs carried on a given 

 area of forage. In five of the experiments, the alfalfa lots 

 yielded an average of 3680 poimds of cured hay to the acre. 



At the Missouri Experiment Station,^ an average of 

 10.3 pigs, weighing 60 to 90 pounds at the beginning of 

 the experiment, were pastured 163 days on an acre of 

 alfalfa. The amount of corn required to produce 100 

 pounds of gain was 307, the pigs being fed the quantity 

 of com which would maintain a uniform rate of gain of 

 f pound daily. Assuming, as did the authors of this 



• Kans. Exp. Sta. Bulls. 124 and 192 ; Iowa Exp. Sta., Eward, 

 Am. Society Animal Pro., 1913 ; 111. Exp. Sta., unpublished data ; 

 Ind. Exp. Sta., unpublished data. 



2 Bull. 110. 



