Drawn from fasted animals, blood is sterile and free of antibiotics and preservatives.
The blood is satisfactory for virological and serological work and for use in microbiological
culture media. Lacks fibrin. 유효기간: 제조일로부터 약 20일

Pooled blood is drawn from several animals, mixed together, and then aliquoted out.
All fibrin is removed mechanically, not chemically, for defibrinated blood.
Pooled blood is stored under refrigeration at 2 to 8 °C