FIFTIETH ANNUAL CONVENTION 187 



The third trial has now (October 24th) been in progress 5 

 months, and will be concluded next month. 



In each of the the three trials two Holstein and two 

 Guernsey calves were assigned to each lot. These two 

 breeds were used so that the results would apply to both 

 types of calves. Each calf was kept in a separate pen and 

 an accurate record was kept of all the feed and water con- 

 sumed by each animal. Live weights were taken weekly 

 and on three consecutive days at the beginning and end of 

 the experiment. 



Skim Mlik Fed Calves Make Excellent Gains. 



Each year Lot 1, the check lot, has been fed the sort 

 of a ration used by dairymen who have plenty of skim milk. 

 The calves were fed whole milk until 21 days of age at the 

 rate of about 1 lb. of whole milk daily to each 10 lbs. of 

 live weight. When a calf became 21 days of age, a week 

 to 10 days was taken to gradually substitute skim milk for 

 the whole milk. The allowance of skim milk was then 

 gradually increased to a maximum of 14 lbs. 



This lot was fed a concentrate mixture consisting of 3 

 parts by weight of ground oats, 4 of ground corn, 2 of 

 wheat bran, and 1 of linseed meal. The calves were al- 

 lowed to eat all of this mixture they wanted up to 5 lbs. a 

 head daily. They also had all the hay they would consume 

 (clover hay in the first two trials, and mixed clover and 

 timothy hay in the present trial). Care was taken to pro- 

 vide salt, and the calves were watered twice daily. 



The calves in this check lot made excellent gains each 

 year, in fact, better than is considered normal. The aver- 

 age daily gain for the two trials completed was 1.72 lbs. 

 and the feed cost per head to 6 months of age was $23.80 

 with feeds at present farm prices. The amounts of feed 

 consumed and the prices at which feeds are valued are 

 shown in thej summary table. 



Good Gains on Limited Allowance of Skim Milk. 



In each of the first two trials another lot was fed sim- 

 ilarly, except that the allowance of skim milk was limited 



