1886.] PUBLIC DOCUMENT -.-No. 33. 25 



The previous short discussion of the first feeding experi- 

 ment seemed to be necessary in the interest of a desirable 

 understanding of the subsequent description of the second 

 feeding experiment, beginning Nov. 5, 1884, and ending 

 March 17, 1885. 



/Second Feeding Experiment. — Twelve pigs served in this 

 trial, all of which were barrows. Six of them were crosses 

 of Berkshire sow with Yorkshire boar ; their individual 

 weights varied from 38 to 46 lbs. The remaining six ani- 

 mals were crosses of Chester White sow with Yorkshire 

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

 for the experiment in two lots, — A and B, — each contain- 

 ing three of the former and three of the latter breed. The 

 first three numbers in each lot are the heavier animals (Berk- 

 shires). 



Lot A (1, 2, 3, 4, 5 and 6) was fed with creamery butter- 

 milk and corn meal, at the rate of three ounces of corn meal 

 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 in- 

 crease of milk for the daily diet ceased. 



The subsequent still steadily 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 buttermilk. The ex- 

 periment 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 

 of November to the 9th of December, two ounces of meal 

 for every quart of skim milk consumed ; from the 9th of 

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

 every quart of milk. The meal was subsequently gradually 

 raised to eight ounces per quart of milk. The consumption 

 of milk had reached ten quarts per day, when the want 

 of skim milk necessitated (February 7) a change in the 

 course of feeding adopted for this lot of pigs. Creamery 

 buttermilk and meal — six ounces of meal for every quart of 

 the latter — were substituted ; at that period seventy-two 



