摘要
[目的]筛选出适合安徽省养殖的优良青虾群体.[方法]选择南漪湖野生青虾、太湖1号以及池塘养殖青虾为试验对象,对3个青虾群体的生产性能进行比较.[结果]太湖1号青虾群体与南漪湖野生青虾群体的绝对抱卵数和相对抱卵数差异不显著(P＞0.05),显著高于养殖青虾群体(P＜0.05);3个群体的青虾商品率、商品规格从大到小依次为太湖1号青虾群体、南漪湖野生群体、养殖群体;南漪湖野生青虾群体的平均育苗量达1 005 kg/hm2,分别比太湖1号青虾群体和养殖青虾群体高26.4％和3.1％;南漪湖野生青虾群体的平均利润达到42 673.5元/hm2,分别较太湖1号青虾群体和养殖青虾群体高22.2％和34.6％;太湖Ⅰ号青虾群体的增重率波动性较大,而南漪湖青虾群体的增重率无波动性.[结论]南漪湖野生青虾对安徽省生态环境适应性强,生产性能较好,适宜作为安徽养殖的优良青虾群体.
Abstract
[Objective] To select excellent shrimp breeding population for Anhui.[Method] Selecting wild shrimps from Nanyi Lake,Taihu Lake No.1 group and breeding group of ponds as test materials,the production performance of three shrimp groups were comparatively studied.[Result] The results showed that the difference of the absolute number of spawning and the relative number of spawning was not significant (P ＞ 0.05) between Nanyi Lake wild group of Anhui Province and Taihu Lake No.1 groups,however significantly higher than farmed shrimp group (P ＜0.05);In commodity rate and commodity specifications,the order from large to small was Taihu Lake No.1 group,Nanyi Lake wild group,cultured group;Nanyi Lake wild group amounted to an average of 1 005 kg/hm2,respectively 26.4％,3.1％ higher than Taihu Lake No.1 and cultured group;the profits of Nanyi Lake wild shrimps reached 42 673.5 yuan/hm2,respectively 22.2％,34.6％ higher than Taihu Lake No.1 group and cultured group;In growth rate,Taihu Lake No.1 group showed a larger of fluctuation,Nanyi Lake wild shrimps showed no fluctuation.[Conclusion] Nanyi Lake wild shrimps have better adaptability to ecological environment of Anhui Province,the production performance is better,which can be used as excellent shrimp populations for Anhui.
基金项目
宣城市宣州区科技计划项目(宣区科[2014]29号)
宣城市科技计划项目(宣科[2015]85号)
安徽省现代农业水产产业技术体系项目(皖农科[2016]84号)
国家科技期刊平台
NSTL
维普
万方数据