Canadian research suggests that cows find shouting just as adverse as being shocked with an electric prod during handling.

The study monitored the speed at which cows moved along a 33-foot pathway that ended in a chute (3.3 feet wide and 6.6 feet tall) while receiving the following treatments:

* tail twisting

* being hit

* being shocked with an electric prod

* shouting

The longer it takes an animal to travel to the chute the more adverse they find the treatment. The results show a significant difference in the time it took cows to walk the 33 feet when prodded or shouted at, compared to animals not receiving any adverse treatment. Animals that were shocked took 53 seconds longer than control cows. Shouting resulted in cows completing the course in 130 seconds, or 59 seconds longer.