32 



DAIRYING 



a cow so that she is constantly gaming in milk production from 

 year to year. Many trials have been reported of the difference in 

 the amount of milk obtained from the same cow or cows by dif- 

 ferent milkers. From one cow in a herd as reported by Henkel * 

 a good milker got 18 pounds of milk testing 4.2% fat 'while a poor 

 milker got 12.5 pounds of milk testing 2.7% fat. At the Wisconsin 

 Agricultural College one milker got 244.5 pounds more milk from 

 five cows in a two weeks* period than a poor milker got from the 

 same cows in two weeks. A trial is reported by Babcock in which 

 four cows were milked for periods of one week by each one of three 

 men all of whom were considered good milkers. The results show- 

 ed that one of these three men always got more milk and more 

 butter fat than the other two men. 



The greatest difference in the yield of milk always occurs 

 at the first milking after the change of milkers, but in the 16 

 changes from milker A to B there was obtained 1.7 pounds more 

 butter fat by B than by A in milking the same cows. 



A Summary of the Results Calculated per Cow per Day 

 Were as Follows: 



Cow 2 Cow 3 Cow 4 



These figures show that B got more and richer milk from the 

 same cows than the other milkers, and with cow No. 3 he got over 

 one quart more milk and the milk tested 1.0% more butter fat 

 Beach* reports that from six cows there was obtained 22.3 pounds 

 milk testing io'.6%fat by stripping them immediately after they 

 had been milked by careless milkers. This amounts to 2.4 pounds 

 of butter fat, or 2^ pounds of butter, which at 30 cents per pound 

 gives 82 cents as the loss at one milking from six cows by careless 

 milkers. 



* Kirchner Milchwirtschaft. 



*Storrs Conn. Expt. Sta. Report 1903. 



