88 ILLINOIS STATE DAIRYMEN'S ASSOCIATION 



be raised on market milk in condensary districts at a rea- 

 sonable cost by following this simple method, and without 

 the use of any expensive commercial mixtures. In raising 

 calves by this method, if a calf is delicate and not making 

 good gains, it will be necessary to continue the feeding of 

 whole milk longer than otherwise. In these experiments, 

 however, little difficulty has been experienced in getting 

 the calves entirely off milk at seven weeks of age in the case 

 of Holsteins and eight to nine weeks in the case of Guern- 

 seys. 



Good Calves Raised on Whey. 



In 1921 and 1922 two lots were fed whey supplemented 

 by a concentrate mixture rich in protein, consisting of three 

 parts of ground corn, three of standard middlings, and four 

 of linseed meal. The whey was pasteurized skimmed whey 

 and no attention was paid to variations in sourness after 

 the calves were used to this feed. In making the change 

 from whole milk to whey somewhat more care was neces- 

 sary than in changing from whole milk to skim milk. 



Lots thus fed whey gained on the average 1.49 pounds 

 per head daily, or nearly as much as the calves fed 10 

 pounds of skimmed milk a day. This satisfactory gain was 

 due in all probability to the fact that the whey was never 

 allowed to stand in a filthy tank or can, but was fed with 

 reasonable care and under sanitary conditions. Further- 

 more, a concentrate mixture rich in protein was used to 

 make good the casein which had been removed from the 

 milk in the cheese making process. The average feed cost 

 of raising these whey-fed calves to six months of age was 

 $21.58. These result show that thrifty calves can be raised 

 on whey readily and cheaply when simple precautions are 

 taken. 



Yellow vs. White Corn for Calf Feeding. 



Each of the first two years one lot of the whey-fed 

 calves was fed yellow corn and another lot white corn in 

 the concentrate mixture. This was done as it had been re- 

 cently found by Dr. Steenbock of the Agricultural Chem- 



