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当前位置: 首页 > 文章 > 亲虾规格、隐蔽物、光照度及密度对克氏原螯虾繁殖效果的影响 水产科学 2012,31 (9) 549-553
Position: Home > Articles > Effects of Broodstock Sizes, Shelter, Illumination and Stocking Density on Breeding in Red Swamp Crayfish Procambarus clarkii Fisheries Science 2012,31 (9) 549-553

亲虾规格、隐蔽物、光照度及密度对克氏原螯虾繁殖效果的影响

作  者：
宋光同;丁凤琴;陈静;武松;汪翔
单  位：
安徽省农业科学院水产研究所
关键词：
克氏原螯虾;亲虾规格;隐蔽物;光照度;放养密度;繁殖效果;正交试验
摘  要：
按照正交试验设计原理,不考虑交互作用,选择L9(3～4)正交表,研究了亲虾规格、隐蔽物、光照度及放养密度4个因素对克氏原螯虾亲虾成活率、抱卵率、产卵量的影响,试验历时57d。研究结果表明,不同亲虾规格对抱卵量影响显著(P<0.05),且规格为35～50g亲虾的平均抱卵量为489.8粒/尾,分别较25～30g、30～35g高20.8%、11.6%;不同隐蔽物种类对亲虾的成活率影响显著(P<0.05),使用"水草+石棉瓦+砖块"作为隐蔽物,亲虾平均成活率为95.69%,分别较"水草+石棉瓦+PVC管"、"三角形栖息物"高9.6%、3.5%;光照度为50～500lx,亲虾的平均抱卵量为467.17粒/尾,高于其他两个光照度水平;放养密度为20尾/m2,亲虾的平均抱卵率为64.98%,高于其他两个密度水平。因此,亲虾规格为35～50g、隐蔽物种类为‘水草+石棉瓦+砖块’、光照度为50～500lx、放养密度为20尾/m2"组合有利于提高克氏原螯虾的繁殖效果。
译  名：
Effects of Broodstock Sizes, Shelter, Illumination and Stocking Density on Breeding in Red Swamp Crayfish Procambarus clarkii
作  者：
SONG Guang-tong,DING Feng-qin,CHEN Jing,WU Song,WANG Xiang Institute of Fisheries,Anhui Academy of Agricultural Sciences,Hefei 230031,China
关键词：
Procambarus clarkii;broodstock size;shelter;illumination;stocking density;breeding;orthogonal experiment
摘  要：
The effects of broodstock sizes,shelter,illumination and stocking density on survival,ovigerous rate and fecundity were studied in red swamp crayfish(Procambarus clarkii) broodstock at water temperature of 18.2~34.6 ℃ by a 57 day L9(3~4)orthogonal experiment.The results showed that the fecundity was significantly varied with broodstock sizes(P < 0.05),the broodstock weighing 35～50 g having average fecundity of 489.8 ova per individual,20.8% higher than the broodstock weighing 25～30 g,and 11.6% higher than the broodstock weighing 30～35 g.The shelters were shown to have significant effect on the survival of the broodstock(P<0.05),the average survival rate of 95.69% being observed in the shelter "Aquatic plants + Asbestos + bricks",9.6% higher than in "Aquatic + Asbestos + PVC",and 3.5% higher than in "Triangle habitat materials".The average fecundity of 467.17 eggs per broodstock was found at illumination of 50～500 lx,higher than at the other two levels of illumination.There was 64.98% of the broodstock carrying eggs at stocking density of 20 individuals/ m~2,higher than at the other two stocking densities.Therefore,it is suggested that the optimal breeding of the red swamp lobster be found in the broodstock with body weight of 35～50 g,in a shelter of "the Aquatic plants+ Asbestos+bricks",at illumination of 50～500 lx and stocking density of 20 individuals/m~2.

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