140 Birds a Minute

From a Politico wrapup of weekly events in the government, on the subject of the speed of meat packing lines processing chickens:

"Under current rules, meat packers cannot exceed 140 birds per minute"

Now the image I have is of a conveyor belt with chickens hanging by the feet from it, dead, and being processed.  And there's different workers, each doing a different job.  And that means they have less than 30 seconds to, say, remove a wing.  Seems incredible to me that people can do that, hour after hour, but they do.  (Although my imagination may have significant faults in the image.)

The meat processors wanted permission to speed it up.  USDA said no.