My analysis of an pubilc service advertisement on animal protection

As far as I am concerned, I agree that protecting the animals and the announcing this kind of advertisement to tell us the cruel situation. 
  This advertisemet use a technique,showing the normal situtation in our daily life and the background teller's down volume slowly to tell us the true,leaving us a huge affect in our heart.This advertisement is made on 31st,2012,Oct,sharing to the public by the internat and TV.
Because of the source is CCTV,I believe the credit of the advertisement and I am willing to share tit to my friends.