46 



HATCH EXPERIMENT STATION. 



[Jan. 



Table I. — Duration of Exxieriment. 



FeediUij and Care of the Animals. — The animals were 

 fed twice daily. The corn oil was weighed out each da}' 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 wannest 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. 



• Disturbances during the Experiment. — eTust before the 

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

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

 was thought best to continue the experiment as planned, 

 usin<»: four cows in Herd 11. , rather than to beo^in ai>ain. In 

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

 indigestion. For this reason, samples of milk were not 

 taken for two weeks, and butter making was omitted for one 

 week. These interferences will be referred to again under 

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

 fat," etc. 



