| 李承龄.福寿螺的生长速度和繁殖力试验[J].植物保护,1995,21(4):12-14. |
| 福寿螺的生长速度和繁殖力试验 |
| Trails on the Growth Speed and Breeding Potential of Ampullaria gigas Spix |
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| DOI： |
| 中文关键词: 福寿螺，生长速度，繁殖力 |
| 英文关键词:Ampullariagigas gigas Spix, growth speed, breeding fertility. |
| 基金项目: |
| 李承龄 |
| 华南农业大学动物科学系 广州 510642 |
| 摘要点击次数: 841 |
| 全文下载次数: 1103 |
| 中文摘要: |
| 福寿螺在广州地区１年可发生３代，螺龄为２０～８０日，每只螺每１０天平均增重：一代０．９０ｇ，（２０．２～２７．６℃）；二代２．３８ｇ，（２６．４～３０．６℃）；三代０．１８ｇ，（１７．４～２５．７℃）。一代每只雌螺平均繁殖幼螺３０５０．１只，孵化率为７０．０８％，二代每只雌螺平均繁殖幼螺１０６８只，孵化率为５９．４％，１只雌螺经１年两代共繁殖幼螺３２．５万余只，繁殖力极强。
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| 英文摘要: |
| Ampullaria gigas Spix breed three generations a year in Guangzhou. Twenty to eighty dayold snails of different generations increased the average body weight per 10 days was as follows : A snail of first generation incerased 0. 9g under the temperature of 20. 2～27. 6℃ , in second generation, it was 2. 38g each snail under the temperature of 26. 4～30. 6℃, and that third generation increased 0. 18g under 17. 4 ～25. 7℃. The average number of breeding larvae of first generation per female snail was 3050. 1 and 70.08% eggs hatched. In second generation, they were 1068 and 59. 40%, respectively, The total number of breeding larvae of two generations per female snail was 325000 each year. |
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