メダカの第二次性徴発現における各種男性ホルモンの力価

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概要

• 論文の詳細を見る

• The androgenic activities of androsterone, methyltestosterone, testosterone propionate, and testosterone were evaluated by their ability to produce the secondary sex character papillar processes in a teleost, the medaka (30-33mm body length). The steroids were consecutively administered per os for 15 days. The median effective doses (ED_<50>'s) of these steroids necessary to induce papillar processes on the anal fin were 4.3μg (methyltestosterone), 250μg (androsterone), 300μg (testosterone propionate), and 650μg (testosterone) per gram of food. Therefore, methyltestosterone has the strongest potency among them. There is a certain parallelism in the relation between androgenic and androtevmonic potencies. The administration of these steroids did not impair the fertility of females. The females treated produced offspring by mating with normal males.

• 1973-03-15

著者

• 河本 典子

  岐阜大学医学部第一生理学教室

関連論文

• メダカの第二次性徴発現における各種男性ホルモンの力価
• 性ホルモン投与によるメダカ生殖巣の性分化の転換過程の形態学的観察
• エストロゲン投与によるメダカ生殖巣の性分化の転換過程の形態学的観察(発生)
• メダカのneuterの脳下垂体の移植精巣維持の能力について(発生・内分泌)
• メダカの第2次性徴におよぼす男性ホルモンの影響(内分泌・生化学)

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