FOODS ANIMAL PRODUCTION. 



087 



averaged 50 lbs. The proportion of skim milk was diminished, and from 

 the time the pigs averaged 200 lbs. until the close of the test it was fed 

 in the ratio of J lb. to 1 lb. of grain. The skim milk and grain were 

 fed in the form of a mash, the necessary amount of water being used 

 as the skim milk was diminished. An attempt was made to feed lot 2 

 on skim milk alone, but the supply was not sufficient for the purpose, 

 so some grain was necessary. The amount fed was 2 lbs. per day. The 

 grain fed both lots consisted of wheat and bran 1:1. The fourth test 

 was made with 3 lots of 2 Berkshire-grade pigs each. It began June 

 15, 1896, and covered 21 days. Lot 1 was fed 6 lbs. of skim milk to 1 

 lb. of grain until the pigs averaged 50 lbs. each. The amount of skim 

 milk was diminished as the pigs increased in weight. From the time 

 they averaged 100 lbs. in weight until the close of the test 2 lbs. of skim 

 milk was fed to 1 lb. of grain. Lot 2 was fed skim milk alone, and lot 

 3 grain mixed with water. The fifth test, which was a continuation of 

 the fourth, began January 14, 1897, and covered 102 days. It was 

 made with 3 lots of 3 Berkshire or Berkshire-grade pigs each. Lot 1 

 was fed 5 lbs. of skim milk to 1 lb. of grain until the pigs averaged 75 

 lbs. in weight. The proportion of skim milk was then diminished, 3 

 lbs. to a pound of grain being fed. Lot 2 was fed skim milk alone 

 ad libitum, and lot 3 grain mixed with water. Tests and 7 began July 

 T, 1897, and were made with 3 lots of 3 Berkshire and Poland China- 

 grade pigs. The results as tabulated cover 104 days. In each test lot 

 1 was fed skim milk or whey alone, lot 2 skim milk or whey and grain 

 in the proportion of 5 lbs. of milk or whey to 1 of grain, until the pigs 

 averaged 75 lbs. in weight. The proportion was then diminished to 3 

 lbs. of milk or whey to 1 lb. of grain as the pigs increased in weight; 

 lot 3, grain alone mixed with water. In all the tests except No. 0, the 

 pigs were fed in pens. In No. G they were pastured, the special object 

 being to compare pasturage with feeding in pens with lots 6 and 7. 

 The financial statement is based on grain at 75 cts. per pound, this 

 being regarded by the author as a fair average for the 4 years covered 

 by the investigation. The results of all experiments, which are given 

 in detail, are summarized as follows : 



Summary of tests of feeding skim milk to /"'.'/••<• 



