response: Well, I know that "dog's bread", mentioned since Roman times, is made from bran.
original_response: I think they're made mostly from bran. Way back in Roman times, dog treats were mentioned to be ''dog's bread.'' It's hard to believe dog treats have been around for so long, isn't it?
history: I give my dog two dog biscuits when he is a good boy. How nice. Some manufacturers even say that these dry and hard biscuits can help clean the dog's teeth. That's what I've heard and he just loves them! And dog biscuits are actually similar to human snack food. Do you know what the treats are made of?
knowledge: ''Dog's bread'', made from bran, has been mentioned since at least Roman times.