AbstractsBiology & Animal Science

A review is presented of the various theories of blood coagulation from the time of A.Schmidt to the present day. The various factors of the coagulation process are discussed in detail. A section has been devoted to a review of anticoagulants, and haemorrhagic diathesis from various causes is discussed in the light of recent findings. In the preservation of blood, fibrin makes its appearance in the samples despite the presence of an anticoagulant. The experimental work, has been conducted on samples from the Blood Bank of the Biochemistry Department. It has been of an exploratory nature to determine the cause of fibrin precipitation and to find a means of completely preventing or at least delaying its appearance. The results of these investigations as well as the probable causes of fibrin precipitation are discussed.