Do Travelling Circus Animals Experience Stress?

Excerpt from a German TV show, where a scientific experiment was conducted to see if lion trainer Martin Lacey Jnr's animals suffered from stress when in transit from their booking as the 2010 Monte Carlo Circus Festival.
The experiment appears to debunk the fundamental argument put forward by the most moderate opponents of animal circuses. Contrary to the opinion of the RSPCA and others the science seems to show that circus animals do not experience high levels of stress when being transported for long distances.

[@KingTiger1]

Always know, this circus is great to the animals. That is the reason why I love it when it is here in Kiel.