While I'm no sure why I need to explain myself to you, I will. I'm not trying to argue your point but I am telling you what was going on with MY dog. I helped hold my dog while they put the IV in, IV is intravenous so it wasn't being delivered to her sub q tissue. 1000 ml per day is a full bag of fluid and would make my 5 lb dog weigh double by the end of the day because the body doesn't get rid of fluid in the sub q tissue as fast as it does in the circulatory system. She was in acute renal failure due to a NSAID overdose so the goal was to flush her system of the drug and get the kidneys working more efficiently, this wouldn't have happened fast enough using the sub q route. While I can't comment on whether or not fluids are given sub q in animals or not, it was not given that way to my dog.