As a charge of 2 cents per gallon for skim milk may be considered 

 somewhat arbiti-ary, its commercial value for feeding purposes has 

 been based with more propriety, in our subsequent experiments, on 

 tlie amount of solid matter it contains as compared with that of the 

 creamery buttermilk, taking tlie contractor's price of the latter as 

 the standard. 



Percenfage of Solids, Cost per Gallon, ets, 

 1SS4. 1SS3. 1884. 1885. 



Creamery Buttermilk, 7.09 8.00 1.37 1.37 



Farm 8kim :Milk, 9. .58 10.22 1.78 1.75 



A recalculation of the cost of feed consumed in om\first experiment 

 (1884) at the rates adoi)ted in our second experiment (1885), de- 

 scribed within these pages, does not alter the financial results of that 

 experiment so far as the relative cost of each kind of feed is con- 

 cerned. 



Cost of Feed per lb, of Di'essed Pork. 

 1884. 1883. 



Creamery Buttermilk and Meal, 4.6 cts. 4.20 cts. 



Farm Skim Milk and Meal, 5.8 cts. 4.85 cts. 



The previous short discussion of the first feeding experiment, 

 reported in Bulletin No. 13 (also II. Annual Report/, seemed to be 

 necessary in the interest of a desirable understanding of the subse- 

 quent description of the second feeding experiment, beginning Nov. 

 5th, 1884, and ending March 17th, 1885. 



/Second Feeding Experiment. — Twelve pigs served in this trial ; all 

 were barrows. Six of them were crosses of Berkshire sow with York- 

 shire boar ; their individual weights varied from 38 to 46 lbs. ; the 

 remaining six animals were crosses of Chester White sow, with York- 

 shire boar, weighing from 15 to 19 lbs. each. They were arranged 

 for the experiment in two lots, — A and B, — each containing three of 

 the former and three of the latter breed. The first three numbers in 

 each lot are the heavier animals (Berkshire). 



Lot A (1, 2, 3, 4, 5 and 6,) was fed with Creamery Buttermilk and 

 Corn Meal, at the rate of three ounces of Corn 3feal for every quart of 

 milk consumed, until the quantity of milk required per day, to meet 

 the individual want of each animal, amounted to from twelve to 

 thirteen quarts, when the increase of milk for the daily diet 

 ceased. The subsequent still steadil}' increasing demand for more 

 feed was supplied by a gradual increase of corn meal, rising from 

 three to four, five, six, and finally to seven and one-half ounces of 

 meal for every quart of butter milk. The experiment terminated 

 with ninety-two ounces of corn meal to twelve quarts of milk. 



Lot B (7, 8, 9, 10, 11 and 12,) was fed with Skim Milk from the 

 farm, and Corn Meal, at the following rates : Nos. 7, 8 and 9, 

 (Berkshire) received from the 5th of November to the 9 th of Decem- 

 ber tiuo ounces of meal for eve7-y quart of skim milk consumed ; from 

 the 9th of December to the 15th of January, four ounces of meal to 



