1. Considerable variation in susceptibility to potassium mono-fluoroacetate
has been found to exist among various species of laboratory animals.
2. The compound is not affected by actively fermenting ruminal flora
nor does its presence affect such fermentation.
3. Direct observation on the hearts of rabbits and sheep injected with
this compound have proved it to be a heart poison probably affecting the
cardiac conducting mechanism thus leading to partial or complete heartblock.
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