46 



HATCH EXPERIMENT STATION. 



[Jan. 



Feeding and Care of the Animals. — The animals were 

 fed twice daily. The corn oil was weighed out each day and 

 carefully mixed with the grain ration, and was eaten without 

 any trouble. Water was supplied constantly, by the aid of 

 the Buckley self-watering device. Each cow was kept in a 

 well-bedded, roomy stall, and was turned into a protected 

 yard during the warmest part of each day when the weather 

 was not actually stormy or severely cold. The feeding barn 

 was heated to a temperature of 50-55° F. during the cold 

 weather, kept clean and well ventilated. The animals were 

 thoroughly cleaned daily, and before milking the udders 

 were brushed and then wiped with a wet cloth. The milkers 

 wore white duck suits. 



DiMurbances during the Experiment. — Just jjcfore the 

 beginning of the second period, cow Folly of Herd H. Avas 

 taken severely ill, and had to be permanently removed. It 

 was thought best to continue the experiment as planned, 

 using four cows in Herd II., rather than to begin again. In 

 the third period, Red II. of Herd II. suffered an attack of 

 indigestion. For this reason, samples of milk Avere not 

 taken for tAvo weeks, and butter making Avas omitted for one 

 week. These interferences Avill be referred to again under 

 "Composition of the milk," "Composition of the butter 

 fat," etc. 



