Jim our 7 year old dog has just had his spllen removed due to a ruptured splenic tumour. He is very very poorly and has 1 1/2 litrs of blood. does anyone know how much blood a 7 year old 31 kg lab has ?
You might want to post this in the Lab Chat section where more people see it. I have no answer to your question, just wanted to send you best wishes. I know many people here have had experience with tumors of the spleen.
I'm so sorry to hear about your boy. As zoezoe said, we've had several dogs with splenic tumors here lately.
I found one source (link below) that says normal blood volume is 35-49 ml per pound.
If I've done all the conversions right, that would work out to 2.695 - 3.080 liters for a 35 kg dog.