That is so interesting. I never fed mine meat because I was told when I first had rats, that feeding them meat made them aggressive with each other.... still, in the wild they are omnivorous. That said, they never lacked any other number of treats. I bought rat food also, but they preferred peanut butter crackers, carrot sticks, cooked pasta, anything I was eating..... They certainly would only eat the tastiest bits of the rat food and leave the rest. I really, really miss my rats so much. I guess I am a rat/dog person. I do have to be somewhat respectful of my husbands wishes though - no more pets until one of them passes on. We board dogs in the house, so we sometimes have up to six dogs living with us, plus the cat, plus the Guinea pig..... who is super healthy and will probably not be going anywhere any time soon. I have so many regrets on the Guinea pig front. I so wish Michael was a rat instead. Sigh.