My brother-in-law has a rotwhiler who is a service dog, mostly retired that takes the pet equviulant to glucosimine. She is arthretic in her hip joints. He buys them at Walmart and gives them to her, I think she takes a couple a day because of her size. Follow directions. They seem to help her quite a bit. When they were staying with us I noticed when she took them she got around much better than when she didn't.
Your babys look like sweet darlings. I sometimes wish they could tell us when it hurts and if the meds we give them are working. Hope this helps.