Hey EWO, it's cool you mentioned that with the Fila. An old timer I've become quite fond of sent me to his vet after I went through 3 in short order....lmao He didn't have a whole helluva a lot of faith in her, but he said she was pretty good, just didn't listen to him. Well he's a bit out dated bless his over sized heart. I really respected the hell out of that young woman vet after I left there that day. She was able to determine what 3 before her failed to do, they also failed to listen to me. I'm pretty steadfast in my beliefs, but I'm not a dumb ass, prove me wrong and I'll humbly kiss your ass.

Anyhow during her vet school ventures they used Greyhounds for all of their blood donors. Reason being they can have normal RBC's in the 60 + range. Well above the average of what a text book will say is normal. At her practice she used her Mastiff who's normal range is 35. That's right 35 is HER normal. A Bulldog would be sick there often times. So while text books are a good measuring stick, they can be WRONG! Point being although their blood volume is high (size) their hct/rbc are often times lower than that of a more active/fit smaller dog. Hence why less anesthesia is needed.

S_B