FISH MEAL AS A STOCK AND POULTEY FOOD. 



13 



The guaranteed analysis of the tankage was : 



Per cent. 



Protein 60 



Fat 8 



Phosphoric a<?id 8 



Crude fiber 3 



The feeding period was divided into two parts. First, a growing period of 

 112 days from weaning up to a fattening age, starting January 19, 1915, and 

 ending May 11, 1915. Second, a fattening period of about one montli, starting 

 May 11, 1915, and ending June 8, 1915. Tlie pigs at this date averaged a little 

 better than 250 pounds and had to be sold. 



Procedure. — The 12 pigs for the first period were divided into two lots. Lot 

 No. 1, check lot, was composed of 8 pigs ; lot No. 2 was composed of 4 pigs. 

 During the first period, the pigs were fed as indicated below. 



RESULTS DURING THE GROWING PERIOD. 



The pigs, which were all in good, thrifty, growing condition, were about 3 

 months of age at the beginning of the experiment, and in order to accustom 

 them to their surroundings they were fed in dry lot from the time they were 

 weaned until the experiment was begun. The pigs in both lots were so fed 

 that all the feed, which was in the form of a thin slop, was cleaned up at 

 each feeding, thereby insuring a sharp appetite at the next feeding time. 

 There was no trouble whatever in getting the pigs to eat the ration containing 

 fish meal. 



Growing period: Jan. 19, 1915, to May 11, 1915 {112 days). % 



Lot 1. Ration: 4 parts corn meal, 4 parts middlings, 1 part tankage: 



Duration of experiment days. 



. Pigs number. 



Average first weight pounds . 



Average final weight do. . . 



Average gain per pig do . . . 



Daily gain per pig do . . . 



Total grain fed do. . . 



Average grain eaten per pig daily do . . . 



Grain per 100 pounds gain do . . . 



Cost of 100 pounds gain dollars. 



Lot 2. Ration: 4 parts com meal, 4 parts middlings, 1 part fish meal: 



Duration of experiment days . 



Pigs number. 



Average first weight pounds . 



Average final weight do . . . 



Average gain per pig do. .. 



Daily gain per pig do . . . 



Total grain fed .' do . . . 



Average grain eaten per pig daily do. . . 



Grain per 100 pounds gain do . . . 



Cost of 100 pounds gain dollars. 



112 



8 



51.37 



191. 50 



140. 13 



1.25 



4, 060. 5 



4.53 



362 



5.58 



112 



4 



54.25 



201. 50 



147. 25 



1.31 



2, 152. 5 



4.80 



865 



5.22 



During the growing period the lot fed corn meal, middlings, and fish -meal 

 made a greater daily gain and a cheaper gain than the lot receiving the tankage 

 supplement. The lot receiving the fish-meal supplement consumed 122.3 pounds 

 more feed, gained a total of 28.5 pounds more, and cost 36 cents'less per 100 

 pounds of gain, than did the lot to which tankage was fed. At the close of the 



