THE EXPERIMENT STATION 75 



larly upon the cost of the different roughages with 

 which they were combined. He also called attention 

 to the increased value of the manure where nitroge- 

 nous concentrates were fed hi place of corn and other 

 cereals. 



IV. Feeding experiments wtih pigs. 



Beginning in 1884 and terminating hi 1892, Goess- 

 mann carried on 17 different feeding experiments with 

 young pigs, to ascertain the best method of feeding, 

 the most suitable feed-stuffs to use, and the cost of 

 pork production. Usually six pigs were used in each 

 experiment. At first, he compared the relative nutri- 

 tive merits of skim milk and buttermilk, and found 

 that on the basis of dry matter they had substantially 

 equal nutritive values. Later, he investigated the most 

 suitable proportions to be used of corn meal and skim 

 milk, and in case skim milk was in limited supply, he 

 endeavoured to find a suitable substitute in the form of 

 different grain mixtures. 



He started with young pigs of from 20 to 30 pounds 

 hi weight, and terminated the experiment when the 

 individual animals reached a weight of from 180 to 200 

 pounds. Skim milk was in fairly liberal supply in the 

 western counties of the state at the time, because of the 

 numerous co-operative creameries engaged in the man- 

 ufacture of butter. 



As a result of these many experiments he advised the 

 following combinations of milk and grain : - 



