SANITARY METHODS IN MILK PRODUCTION IQI 



chine stops. Four different sizes of teat cups are 

 provided, so that different sizes of teats may be 

 fitted. 



Cost of equipment for machine milking. — At the 

 present time the equipment required to milk a herd 

 of 40 cows with the machines and the cost of the 

 same would be as follows : 



1. An engine or some power with which to drive 



the machine. For milking up to 8 cows at 

 a time, a 2-horsepower gasoline engine may be 

 used, costing $105 00 



2. A vacuum pump, costing 75 00 



3. A vacuum tank, like a tank that is used in con- 



nection with ranges or stoves in kitchens, 

 costing II 00 



4. The piping with valves, etc., necessary in barn, 



depending upon extent of plant, number of 



cows, etc.. costing for a 42-cow dairy about 25 00 



5. Four milking machines, costing 300 00 



Total S16 00 



One machine milks 2 cows at a time, and it has 

 been found practicable to allow one machine to 

 every 10 or 12 cows when equipping the herd. 



In a general way it may be said that the entire 

 cost of installing a plant for herds of different sizes 

 would be about as follows : 



For a dairy of 30 cows, with 2 machines, milking 

 2 cows each or 4 cows at one time, cost per 

 cow $13 00 



For a dairy of 40 cows, with 3 machines, milking 



6 cows at one time, cost per cow 12 00 



For a dairy of 60 cows, with 4 machines, milking 



8 cows at one time, cost per cow 10 00 



For a dairy of 75 cows, with 5 machines, milking 



10 cows at one time, cost per cow 8 50 



For a dairy of 100 cows, with 8 machines, milking 

 16 cows at one time, requiring about a 4-horse- 

 power engine and a larger pump, cost per cow 10 00 



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