76 AMERICAN DAIRYING. 



average percentage of fat in the milk from all 

 four teats was considerably below that with 

 ordinary milking. 



Comparisons of milking by hand and with 

 tubes were, as a rule, unfavorable to the milk- 

 ing tubes. On the whole the yield was slightly 

 less with tubes than with hand milking and the 

 quality of the milk was poorer, although there 

 were individual exceptions to this rule. The 

 average for the eight cows tested showed a 

 total less with tubes of 6.5 Ibs. of milk and 

 2.718 Ibs. of fat per day. 



As to the frequency of milking, tests made at 

 the New Hampshire Station of milking hourly 

 and at the Vermont Station of milking two and 

 three times a clay, indicated that while there 

 was a gain in some cases from frequent milk- 

 ing this was only temporary and was not ap- 

 parent after two or three days. There was 

 often a decrease in both yield and composition 

 when frequent milking was continued. The 

 Vermont Station found that in these fluctua- 

 tions of quality the fat only was affected, the 

 casein, sugar and ash remaining practically 

 constant. 



Quality of first and last milk drawn. The 

 ''Handbook of Experiment Station Work," pub- 

 lished by the United States Department of 

 Agriculture, gives the results of many interest- 

 ing and instructive experiments in milking 



