ur very welcome bai,concern lang ko sa imo pup gud.kay di man jud to hereditary iya condition but is highly induced by inappropriate maintenance.u mean hydrotherapy,yes its a gud exercise for dogs with orthopedic problems.mao lage,nagtanaw ka sa nutritional value,so in the whole sense of the word...WHY are u using the product mentioned above? kay these are not suitable choices given the fact that ur dog has that condition.& its not the brand or anything that goes with the marketing,etc.iresearch jud ug sakto ang appropriate nutrition ug maintenance sa imo pup,dont take any words from it not even mine,research thoroughly jud.gudluck!