The clot is formed under normal conditions undergoes contraction, when serum is expressed from the clot, and finally the clot becomes denser. The high percentage of prothrombin, the blood clotting substance is responsible for blood clotting and a substance called thromboplastin, released by the platelet also responsible for blood clotting reaction ([3].; Pandey [15]. Due to the increased concentration of toxicant, the production of these substances is decreased, so, the blood takes more time to clot.