Summary
The Missouri Bleeder Swine have prolonged bleeding time, low factor VIII levels, reduced
platelet adhesion, and respond to plasma and serum transfusions in a manner similar
to that of patients with von Willebrand’s disease. The swine disease is thus more
similar to von Willebrand’s disease than to classical hemophilia. The present work
demonstrates that the sedimentation behavior of fibrinogen from these bleeder swine
is like that of normal swine and does not show the anomalous sedimentation pattern
of fibrinogen from classical hemophiliacs.