75 



III. Skim-milk 6 quarts, corn meal 4 to 26 ounces, and wheat bran 20 to 26 ounces, 

 with a nutritive ratio of about 1 : 3.7. 



IV. Skim-milk 6 quarts, corn meal 40 to 54 ounces, and wheat bran 20 to 28 ounces, 

 with a uutritivo ratio of about 1 : 4.3. 



Details are given in tables, whicli include data for the daily rations, 

 gain in live weight by periods and per day, feed consumed, pounds of 

 dry matter required to produce one pound of gain in live weight, a finan- 

 cial summary, net gain per pound by periods, value of the skim-milk, 

 and estimated amounts and values of the fertilizing ingredients in the 

 manure from the feed consumed. The relations of weight and feed, and 

 of weight and profit, are illustrated by diagrams. 



The following table herewith gives a summary of the more important 

 data recorded for this experiment: 



Summary of results of the experiments in pig feeding . 



* Average weight at beginning of experiment, 20 pounds. 



t Loss. 



J Allowing for estimated value of manures. 



The following are among the results of the experiment as recorded in 

 the bulletin : 



The Chester Whites gained in live weight about one fifth faster 

 and required one seventh less food to produce a pound increase in live 

 weight than the others. The Chester Whites produced their growth at 

 a cost, in food consumed, of 3 cents per pound, while the other breeds ate 

 3.V cents' worth of feed for each pound of growth. 



The six pigs together gained 1,088.5 pounds in live weight, or an 

 average per pig of 1.07 pounds per day. They consumed 5,582 quarts 

 skim-milk, 1,223.8 pounds corn meal, and 884.4 pounds wheat bran, or 

 an average of 2.79 pounds dry matter to each pound of gain in live weight. 

 The corn meal used was bought at $18 per ton, and the bran for $16 

 per ton. The skim-milk was considered worth 15 cents per 100 i)ounds, 

 orl^ cents per gallon. The pigs sold for 5:^ cents per pound, dressed weight, 

 (a lower price than the average), and shrank 18 per cent in dressing, 

 making the selling price equal to 4.32 cents per pound, live weight. 

 The whole selling })rice was $47.07, and the value of the feed consumed 

 $30.22, leaving a profit of $10.85. 



