【摘要】 本文以保幼激素类似物ZR-515和20-羟蜕皮酮添食四、五龄期的家蚕,探讨其生殖效应(造卵)。结果表明:(1)JHA和MH不仅能显著影响茧质性状,对生殖生物量也有显著效果。四龄第1日和五龄前4日施用JHA,对总造卵生物量具有明显的增值效应;五龄后期(第6—7日)使用MH,具有显著的减值效应。两种激素的这种生殖效应与雌蛹体重具有较好的一致性。(2)根据对生殖指标的分析,激素类在幼虫期使用,其生殖效应以改变成熟卵粒数为主,影响卵重为辅。(3)经对成熟卵蛋白和糖元含量测定发现;卵蛋白含量和卵糖元含量与激素的生殖效应相平行。更多还原

【Abstract】 The effects of JHA(ZR-515)and MH(20-hydroxyecdysone),using in larval stage,on the egg forming of Bombyx mori have been studied in this paper. The results are as follows: 1) The JHA and MH can affect not only the cocoon characters but also the reproductive bio-quantity. In the 1st day of 4th instar and the early 5th instar, JHA significantly increase reproductive bio-quantity, but MH decrease the total reproductive bio-quantity in the later 5th instar. The effects of these 2 hormones on the egg forming are identical with the female pupal weight. 2) Based on the analysis of the generative index,the generative effects of these hormones,using in larval stage, mainly change the the number of ripening eggs and subsidiarily affect the weight per hudred eggs. 3) The generative effects of the hormones have unanimity with the contents of the glycoge and protein in eggs.更多还原