I love dogs
That's awesome! The dog was actually the first species to be domesticated and has been selectively bred over millennia to do a bunch of different things!
I see. I have 5 different breeds of dogs
Breeds are completely controlled by humans! What breeds do you have?
pit bull. chihuahua, Rottweiler and so on 
Oh wow. Rottweilers are often put into dog fights, which are actually banned in the US (thank god!) 
I will never do that to my dog. My house is a heaven to them
That's good! Rottweilers used to be used in Germany as livestock herding dogs - maybe that's where they get the bad name of being more violent from?