268 



Pork Production 



middlings. The pigs eating the former ration made a 

 daily gain of more than j pound in excess of that gained 

 by the pigs fed the middlings. 



Another important advantage of linseed-oil meal 

 over shorts or middlings was that a larger proportion of 

 the ration was corn. In order to supply as much protein 

 as was contained in the ration of 5 parts corn and 1 part 

 of linseed-oil meal, it would be necessary to feed 1 pound 

 of shorts or middlings with each pound of corn. 



A smaller amount of total feed was consumed in the 

 production of a given gain, also, with the linseed-oil meal 

 ration than with the ration containing middlings. Based 

 on the feed required to produce 100 pounds of gain, as 

 given in the summary table, linseed-oil meal would have 

 the valuations shown in Table CXIII. 



Table CXIII. — Value of Linseed-Oil Meal as Affected 

 BT THE Price of Corn and Wheat Shorts or Middlings 



When com and mid- 

 dlings are worth . 



Linaeed-oil meal is 

 worth 



Corn 56^ 

 I)er bushel 



Middlings 

 S25per 

 ton 



S55.18 per 

 ton 



Com 70^ 

 per bushel 



Middlings 

 SSOper 

 ton 



$64.85 per 

 ton 



Com 84^ 

 per bushel 



Middlings 

 $40 per 

 ton 



$91.04 per 

 ton 



Corn 98^ 

 per bushel 



Middlings 

 $45 per 

 ton 



$100.71 per 

 ton 



Corn $1.40 

 per bushel 



Middlings 

 $60 per 

 ton 



$129.70 per 

 ton 



If the addition of shorts or middlings to a ration of 

 corn and tankage has the effect of improving its value 

 and efficiency, there is reason to believe that a combina- 

 tion of com, shorts or middlings, and linseed-oil meal 

 would be an improvement over corn and linseed-oil meal 

 alone, although there is no evidence except general expe- 

 rience to support it. A ration of 8 parts of corn, 2 parts 

 shorts or middlings, and 1 part linseed-oil meal, by weight, 



