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Contribution to the study of the composition of the salivary calculi of the horse


, : Contribution to the study of the composition of the salivary calculi of the horse. Arch Ital Sci Farmacol 7(1): 60-71

The author has gathered from various sources previous analyses of salivary stones in domestic animals and in man, showing that they are composed principally of CaCO3, Ca3(PO4)2 and an organic matrix. 4 stones were taken from the Stenson's duct of a 12 yr. old horse. The largest stone weighed 88 gms. The section of these stones showed small pieces of straw as a nucleus around which the stone was formed. Microscopic exam. showed the stone to be the union of small granules of mineral matter alternating with a gelatinous matrix. Comp. of stones as follows: H2O, 0.89%; CaCO3, 88.88%; Ca3(PO4)2, 3.44%; MgCO3, 0.26%; CaSiO3, 0.08%; Fe, 0.02%; protein substance, 6.62%.

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