5IO Bulletin 269. 



II. EXPERIMENT AT CORNELL STATION, I908-9 



Since a part of the calves in the experiment of 1907-8 were older 

 than the others, it was considered best to repeat the experiment in 

 1908-9, keeping a record of each calf from birth. 



The calves to be fed on the different foods in 1908-9 were not selected 

 in any way. The plan was to put each calf on experiment at birth and 

 to feed equal numbers of calves on each food during the course of the 

 experiment. From the results of 1907-8, it was considered not worth 

 while to continue feeding Lactina Suisse because of its high cost and 

 because of the generally poor results obtained by its use. The foods used 

 for trial were skimmed milk, skimmed milk powder, Schumacher Calf 

 Meal and Blatchford's Calf Meal. Calf No. i was fed Schumacher Calf 

 Meal, Calf No. 2 Blatchford's Calf Meal, Calf No. 3 skimmed milk and 

 calf No. 4 skimmed milk powder. By alternating the calves as they 

 were born during the fall, the lots fed on the different foods would 

 thus have nearly equal numbers. However, owing to the fact that some 

 of the bull calves were sold from time to time and thus dropped from 

 the experiment, the calves in Lot D, fed skimmed milk, finally num- 

 bered seven, those in Lot E, fed skimmed milk powder, numbered six, 

 Lot F, fed on Schumacher Calf Meal, numbered four, and Lot G, fed 

 on Blatchford's Calf Meal, numbered four. 



All records of food, weight, etc., were kept separately for each calf. 

 The milk or gruel and the dry grain was weighed separately for each 

 calf. The hay eaten by all the calves on experiment was weighed daily, 

 and at the end of each month the amount of hay was averaged for each 

 calf according to his age. 



Each calf was kept on experiment from birth until he was 150 days 

 old, or through the first five months of his life. Table XI gives in brief 

 the breed, sex. date of birth, etc., for each calf in the experiment. 



Each calf was weighed at birth and every Thursday thereafter up to 

 and including the last Thursday before he was 150 days old. He was 

 then weighed when 150 days old. The record of these weighings for each 

 individual is shown in Table XII. By weighing the calves each week, 

 a check was kept on their development. 



