For those that want to read the study, he/she is talking about i think it's this one, I need to read it more carefully but still, never thought gender could actually matter in blood transfusions, we definitely need to do better research on this topic!!
I just realized i know nothing about transfusions in animals and i'm a vet student... the only thing i know is that we only get the blood almost 1 day after asking, by then an animal that would really need it would be dead...
Great post @techlife, i love health/biology stuff