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光照时间、 Ca O 浓度和底质对大瓶螺( Ampullaria gigas) 生长繁殖的影响
Effects of Light Time, Quick Lime Concentration and Deposit on Growth and Propagation of Amullaria Gigas
【摘要】 通过水族缸设置不同因子水平养殖大瓶螺, 研究结果表明: 光照时间对大瓶螺产卵量有极显著影响; Ca O 浓度、底质对雄螺的生长速度有显著影响。光照时间对雌螺产卵量起主导因子作用。每天光照时间为12 h 、 Ca O 浓度为012 g/ L、底质为泥土时大瓶螺产卵量最大、生长速度最快
【Abstract】 Through culture of Amullaria gigas , the study shows that light time has very great influence on the ova yield of female Amullaria gigas , while quick lime concentration and deposit have great influence on the growth velocity of male Ampullaria gigas . With light time of 12 hours per day, quick lime concentration of 0 12g/L and soil as deposit, the ova yield is the biggest and the growth velocity the fastest.
【关键词】 大瓶螺;
光照;
CaO;
底质;
生长繁殖;
【Key words】 Amullaria gigas; light time; CaO; deposit; growth and propagation.;
【Key words】 Amullaria gigas; light time; CaO; deposit; growth and propagation.;
- 【文献出处】 广州师院学报(自然科学版) ,JOURNAL OF GUANGZHOU NORMAL UNIVERSITY , 编辑部邮箱 ,1999年05期
- 【被引频次】9
- 【下载频次】92