Useful Guidelines for Evaluating Milking Parlor Time-And-Motion Data
University of Arizona
Tucson, AZ 85721
We have compiled our best estimates of time to complete tasks in both herringbone and parallel parlors. These times include walking time between cows and assume a well-maintained parlor. All times are rounded up to the closest seconds per cow. Times that are plus or minus 2 seconds to these would be considered normal.
|Attach||12||with units down|
|Attach||8||with unit arms|
Example: The time required in a parallel parlor to enter cows, spray with predip, wipe teats dry and attach units is (4+4+6+10) 24 seconds. If wipe and attach are performed as a single activity then 1-second of walking time can be subtracted. In the example above, the 24 seconds per cow assumes 3 passes by the cow (spray, wipe, and attach). However, if only 2 passes are made (spray and wipe/attach) then the total time per cow would be 23 seconds.
|Exit||2||2||With rapid exit|
|Misc + Idle||15% of WRT|
With rapid exit, exit time is a function of parlor size. Smaller parlors (8-12) will see exit times of 5 seconds per cow while larger parlors (> double 25) can see exit times of .5 seconds per cow. This is the basic time to raise the gate and lower it, regardless of number of cows exiting.