Animals need rights because they have feelings too.
Imagine this:
You and a cow switched places, you are having the time of your life, eating all the grass that you want. Out in the wild with trees and fresh air. Until the super nice, or so you thought, farmer comes out into the feild and calls you over. You come running because you love him so much for letting you have all this freedom. You greet him, he pats you and pets you.
He leads you into a dark barn, you are confused but you trust him because you love him so so much(YOU HAVE FEELINGS YOU SEE!), you thinks he is going to give you a treat or some sort, but instead he tells you to sit and lay down.
You do as told, and he injects you with something, you then become drowsy and loose sight of whats around you. You wake up and see a cow lying down and you think to yourself, Wow! that looks just like me. You relize that its you, and the "friendly" farmer. He brings up a big looking thing, its sharp and shiny, he raises it above his head and...
You know what gonna happen next. :( the worst part is not even that, it's that you trusted the farmer, and YOU HAVE FEELINGS, as in you thought he was friendly.
You are heart broken because of that.
As you can tell, animlas have feelings. They can feel feelings, they have hearts, maybe even more than humans.
ANIMALS ARE NOT OBJECTS! THEY ARE JUST LIKE US!TREAT THEM THE WAY YOU TREAT YOU MOM,YOUR DAD, YOUR.. ANYONE(maybe not your siblings though). THEY GIVE YOU ALL THE LOVE AND YOU GIVE THEN DEATH.