108 AGRICULTURAL EXPERIMENT STATION. [Jan. 



The shrinkage of the medium Yorkshires was equal to 21 

 per cent., and that of the grade Chester Whites 24 per cent., 

 of their live weights. The large percentage of shrinkage is 

 mainly due to the fact that by some oversight the animals 

 had been fed once on the day of killing. The medium 

 Yorkshires lead the grade Chester Whites by two pounds in 

 dressed weight, making the result an exceptionally close one. 



Four and seven-hundredths pounds of dry matter in the 

 feed produced one pound of dressed pork in the case of the 

 medium Yorkshires, while 3.98 pounds of dry matter in the 

 feed produced one pound of dressed pork in case of grade 

 Chester Whites. 



The market cost of feed consumed for the production of 

 one pound of dressed pork was 5.60 cents in the case of 

 medium Yorkshires, and 5.45 cents in that of the grade 

 Chester Whites. The market cost of the feed consumed is 

 $26.51 in the case of the medium Yorkshires, and in that of 

 the grade Chester Whites it is $26.41. 



The manurial value of the nitrogen, phosphoric acid and 

 potassium oxide contained in the feed consumed is in the 

 first-named instance equal to $13.46, and in the latter 

 $13.59. Allowing 30 per cent, of the stated essential 

 fertilizing constituents as retained in the organization of the 

 growing animal and thus lost, there remain 70 per cent, of 

 them obtainable in the manure. The obtainable portion of 

 the manurial constituents of the feed is worth $9.42 in the 

 case of the medium Yorkshires, and $9.51 in that of the 

 grade Chester Whites, making the net cost of feed in the 

 first-named lot $17.09, and in the second lot $16.90. 



The net cost of the feed consumed for the production of 

 one pound of dressed pork is 3.61 cents in the case of 

 the medium Yorkshires, and 3.49 cents in that of the grade 

 Chester Whites, — a difference of .12 cent per pound in 

 favor of the latter. 



