ドルノ線照射による蚕の飼育

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  • Rearing of Silk-Worm by Irradiation of Porno Ray

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This paper deals with rearing of. silk-worm (Bombyx mori L.) by irradiation of fluorescent sunlamp emitting in the spectral region from 2700Å to 4000Å including Dorno region.<BR>As the desirable results of the irradiation on the human body and the domestic animals were reported, we used this fluorescent sunlamp to study the effect to the silk-worm in spring and summer rearing seasons, in 1957.<BR>The results obtaind as follows:<BR>1). The experiments were made on four groups of silk-worm, namely, one, two, three, and four times irradiation each, with energy of 0.6 E-viton.h/cm2 per day except moulting period. The three times irradiation group showed the best result.<BR>2) In the three times irradiation group, we observed shortning of rearing period, increase of the body weight, silk gland, digestion rate, silk length and silk weight, and decrease of death rate.<BR>This experiment shows one of the methods to reduce the silk production cost. Now we are going to study the irradiaton about the egg, pupa and adult of silk-worm.

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  • 照明学会誌

    照明学会誌 43 (6), 224-226, 1959

    一般社団法人 照明学会

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