You wouldnt FEED a pet yoghurt but a small amount occasionally is good for their stomachs. I just wanted to know what milk has in it that is not in yoghurt. I would never give milk to a dog or cat.
I give my dog both milk and yoghurt without any ill effects. He does weigh 90 kilos though. And before you start accusing me of overfeeding him he's a very skinny neapolitan mastiff who isn't at all keen on eating. I have to tempt him with alternatives to dog food to get his appetite going.