With supervision and compassion without extremes and abuses - do it. I disagree with animal testing. We have prisons full of criminals wasting their time and costing us a bundle of money. 2- have human being think before committing a crime. Animals can be used to test drugs and or health care products in order to benefit humans.
Animal life is also valuable as human life, but secondly only.
I know that because of certain testing of animals science has become very advanced maybe even too advanced in some areas. And as humans we are thankful for the scientific research but there are other ways of testing products than using animals but of course the alternatives are always more expensive. There have been many cures to human diseases through the department of animal medicine research.