【摘要】 <正> 菲律宾蛤仔Ruditapes philippinarum属于不易进行人工受精类型的双壳类,为了获得胚泡消失的成熟卵,有些研究者采用弱碱性的NH₄OH处理获得一定效果。但如NaOH等强碱性化学物质,在海产双壳类催产中应用很少。为了进一步探索菲律宾蛤仔产卵机制和扩大室内催产方法,我们于1979年9—12月进行了NaOH等15种化学物质和性诱导物质的催产效应研究。更多还原

【Abstract】 The spawning-facilitation effects of some chemical substances, such as NaOH and sexual substance on Ruditapes philippinarum have been explored and following results are obtained.1 . Soak air-dried parent clams in 0.0011N NaOH or 0.0015N KOH seawater and add female sexual glands. The rate of spawning-facilitation have been 27.5% to 65% and the larvae could normally develop into spats.2. The effects of NaOH is similar to NH4OH. Both of them could accelerate the further maturation of ova.3. There existed some induction substances solvable to alcohol in the sexual glands of female or male clams. But the induction substance from female had a better result than that from male.In short, under indoor conditions, chemical or physical factors should be in cooperation with sexual substances for induction and they complement each other. Neither of the factors could individually be successful in spawning-facilitation.更多还原