FIFTIETH ANNUAL CONVENTION 189 



feed cost of $22.64 per head to 6 months of age. This lot 

 gained slightly less than Lot 2, fed 10 lbs. of skim milk a 

 head daily, but did remarkably well considering the small 

 amount of milk fed. In fact, the gains would be considered 

 nomral for well-reared dairy calves. 



These results show plainly that good thrifty calves can 

 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 7 weeks of age in the case of 

 Holstein and 8 to 9 weeks in the case of Guernseys. 



The following schedule of feeding the whole milk is 

 suggested when this method is to be followed : 



Holsteins: With dam for 3 days. Then feed whole 

 milk, increasing to 9 lbs. daily at end of first week and con- 

 tinue this amount until 6 weeks of age. Gradually reduce 

 allowance until at end of the 7th week no milk is fed. 



Guernseys. With dam for 3 days. Then feed whole 

 milk at the rate of about 6 lbs. daily for 2 weeks, increase 

 to 7 lbs. and continue 5 weeks. Reduce allowance of milk 

 gradually until at end of 9 weeks no milk is fed, 



Good Calves Raised on Whey. 



In 1921 and 1922 two lots were fed whey supplement- 

 ed by a concentrate mixture rich in protein, consisting of 3 

 parts of ground corn, 3 of standard middlings, and 4 of lin- 

 seed 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 necessary 

 than in changing from whole milk to skim milk. The 

 change was not begun until the calves were about 3 weeks 

 of age and then 10 to 14 days were taken to get the calves 

 entirely off whole milk. As soon as possible the whey al- 

 lowance was increased to 14 lbs. a day. This was continued 

 during the rest of the trial. 



