On the Use of Antibiotics for the Operation of Pearl Mother-Shells and Its Effect on the Quality of Pearl Produced

摘要

An attempt was made to determine the effect of use of antibiotics on the operation of nuclei-insertion into the mother-shell of pearl oysters. There was a significant difference in the quality of pearls produced between the present common method and the method in which the authors applied antibiotics to the operation of nuclei-insertion. But there was no difference statistically between the dipping of both mantle-pieces and nuclei, and the injection of antibiotics intramuscularly. In the use of high concentration relatively of antibiotics, the method of injection did not bring out a favorable effect on the quality of pearls, though the mother-shells of pearl oysters which had been injected antibiotics intramusculary seemed to be more healthy than untreated pearl oysters.