千葉県茂原地区に発生したヨウ素中毒蚕について

概要

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In the fall of 1967 a large number of silkworm larvae with abnormal appearance were found in the rearing of farmers near the iodine and molybdenum factories in Mobara district of Chiba Prefecture. They are similar in appearance to the silkworm larvae infected with grasserie which is characterized by the swollen segments and to the iodine-administered silkworm larvae reported previously by UMEYA et al (1959). The mulberry trees near the factories were so polluted by iodine that as high as 100ppm was detected from mulberry leaves. Silkworm larvae administered such leaves showed the same abnormal appearance as mentioned above. The results indicate that the abnormal larval appearance may have been caused by the iodine poisoning.
日本蠶絲學會の論文