Persuasive Speech Techniques

The persuasive technique I would choose for my speech, is to appeal to the audience's emotions.  My topic is dogfighting, which I'm strongly against.  If I show my audience the effects of dog-fighting, and make them aware of the rewards, possibly it could help them decide not to do it, or maybe even turn someone in that does do it.  Dog-fighting is very serious, and animals are harmed because of it.  I could relate their pets with the pets that are being pinned against each other in these sadistic events.  Photos would also be a great way to appeal to the audience's emotions.  The HSUS has some great pictures of dogs that just look so depressed.