I don't really know if there is a way to test how much it sucks for the animals, also the article is about chickens and hens I don't know if rat's have a different system to where they fall asleep earlier than hens or what. But if the price is the same or just a slight difference and you are able to get Argon then I say go for it. If it makes you feel even an ounce better then it's worth it IMO.