Activities of serum alkaline phosphatase (SAKP), acid phosphatase (SACP), sorbitol dehydrogenase (SSDH), lactic dehydrogenase (SLDH), and isoenzyme(Iso-LDH), γ-glutamyl transferase (Sγ-GT) were determined in rabbits with rabbit haemorrhagic disease (RHD) at different periods of the disease. The results showed that significant increase(P