I am very lucky to have a canine blood bank 20 minutes from us. There are only 2 in Canada.
Life Stream
Life Stream reqyuires that the dogs be healthy and between ages 1 and 7.
I believe if they are on certain medications they will not qualify.
They test for Heartworm and 3 TBD, and these tests must be negative.
Nixon, Ruby & Nigel have all donated, as well as our Bridge GSD and Pointer.
You can read our story under 'donar stories' on the Life Stream Website.
Dogs have 'blood types' just like people, as well as 'negative' and 'positive'.
Our GSD was 'negative' and her blood was highly desireable.
Greyhounds are comsidered 'universal' donars, just like a person with 'O' blood.
My understanding is that if a dog needs blood, then they need to be 'typed' and receive their own 'type', or they can get blood a 'universal' donar, such as a Greyhound.