Close to all greyhounds have a blood type that allows their blood to be used in all other dogs.
The greyhound has long been a desirable canine for the use of being a blood donor. There are good reasons why it should be used and there are also good reasons why it shouldn’t be used. The number one reason why greyhounds are used for blood donation is that many of them have a universal blood type.
The number two reason, in my view, is because they are easy. They will get used to a routine. They will either stand or lie down and permit you to put a large needle into their jugular vein to draw a liter of blood without so much as a whimper. Their veins are easy to find. They have huge hematocrits. Their blood is red, too! As long as you can put red blood into another dog and it’s easy, they’ll do it!
On the bad side, many or even most, have been exposed to some form of tick-borne disease and although they may not show infection, they will show titers for one, and in some cases more than one, a tick-borne disease. Their platelets are lower than most other breeds and according to the studies we have done, 75% of greyhounds are von Willebrand positive and 38% are carriers.