Abstract
Summary and Conclusions
A study of growing rabbits fed a complete diet supplemented with various levels and forms of fluorine has been made. When levels of fluorine were included in the ration above .021% rabbits in 4 months developed a symptomatology indicating the development of fluorine toxicosis. Growth was retarded, stiffness of the joints occurred, and pronounced changes in the teeth and structure of the bone were encountered. Fluorine was concentrated in the skeleton, and it appears from these data that the rabbit can withstand a storage of fluorine up to about 5,000 ppm without affecting such physiological processes as growth, health, normal teeth, and bone. In this species the fluorine of raw rock phosphate produced as toxic results, or more so, as an equivalent level of sodium fluoride borne fluorine.
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