White blood is processed. Donkey blood tastes good, but some people don't like it very much. After the serum coagulates, it's white blood you eat. It tastes smoother and tastes better
Blood consists of visible and invisible components. White blood cells, red blood cells and platelets are visible components. Serum is invisible component in blood. The color is yellowish and transparent. The basic component of serum is water, which is soluble in protein, fat, sugar, inorganic salt, vitamins and other nutrients, as well as human metabolites.
It's centrifuged in medicine. I really don't know about donkey blood. Maybe it's heating that destroys red blood cells.
Luoyang donkey soup is like this! Like tofu!