Yes, absolutely. Of course. Isn't everybody?
In seriousness, it would be foolishness for a circus owner to mistreat very expensive animals (poor resource management). I am also certain that the SPCA in any place where circuses appear keep a VERY close eye on all the performing animals already.
This warrants a barf alert because it seems like another silly PETA-type animal rights circus (IMHO).
I misstate SPCA...I mean the local "animal cops"