AGRICULTURAL EXPERIMENT station. 93 



The above figures show the proportional amount of lean cuts in 

 the several animals. The term "lean cuts" is taken to mean the 

 sum of the hams and shoulders trimmed and the spare-ribs. 



The data here presented do not warrant the claim that any one 

 of the breeds compared possesses superior market qualities over all 

 the others. The Tamworth's gave a somewhat larger percentage 

 of lean cuts and the Tamworth-Berkshire cross a larger proportion 

 of salting pork. The differences are small, we may believe, com- 

 pared with those which may be caused by age, food, or individual 

 variations. 



THE RELATIVE VALUE OF DIGESTIBLE FOOD FROM ANIMAL AND FROM 

 VEGETABLE SOURCES. 



The report of the Maine Experiment Station for 1889 contains 

 an account of experiments which had for their object, in part, a 

 comparison of the dry matter of skimmed milk with the digestible 

 part of pea meal as food for swine. Those experiments indicated 

 a practical equivalence, pound for pound. 



This matter has again been brought to a practical test in the 

 experiments now under discussion. The growth of separate lots of 

 pigs, selected from the same litter, and .of the same lots of pigs 

 during separate periods, has been compared when fed rations con- 

 taining practically the same amount of digestible matter, but which 

 was derived from unlike sources. As in the experiments of 1889, 

 pea meal or oat meal was made to take the place of skimmed milk 

 in the proportion of the digestible substance in the two. 



In tables LVI and LVII are presented the figures showing the 

 actual food required for a pound of growth. 



