Serum is the liquid fraction of whole blood that is collected after the blood is allowed to clot; it is the blood plasma with the fibrinogens removed. Serum includes all proteins not used in blood clotting (coagulation) and all the electrolytes, antibodies, antigens, hormones, and any exogenous substances.
Donkey Serum is derived from clotted whole blood aseptically collected from jugular puncture. It is sourced from USA or Canada. The serum is imported and treated in agreement with the European regulations.
For more details, please follow https://lifescience.canvaxbiotech.com/product/donkey-serum/