43 湖南省地方标准 莲 虾生态综合种养技术规程 Technical regulation of ecological comprehensive cultivation of Lotus and shrimpICS CCS 65.150 B 50 DB43/T2252—2021 发 布 湖南省市场监督管理局2021-12发布-29 2022-03实施-29 DB43/T 2252—2021 I 目 次 前言 ································ ································ ································ ························ Ⅲ 1 范围 ································ ································ ································ ····················· 1 2 规范性引用文件 ································ ································ ································ ······ 1 3 术语和定义 ································ ································ ································ ············ 1 4 莲田选择 ································ ································ ································ ··············· 1 5 田间工程 ································ ································ ································ ··············· 2 6 湘莲种植 ································ ································ ································ ··············· 2 7 放养准备 ································ ································ ································ ··············· 2 8 虾的投放 ································ ································ ································ ··············· 2 9 投饲管理 ································ ································ ································ ··············· 3 10 日常管理 ································ ································ ································ ·············· 3 11 病害防控 ································ ································ ································ ·············· 3 12 捕捞 ································ ································ ································ ···················· 3 13 生产记录 ································ ································ ································ ·············· 4 DB43/T 2252—2021 II DB43/T 2252—2021 III 前 言 本文件按照 GB/T 1.1 —2020《标准化工作导则 第1部分：标准化文件的结构和起草规则》的规 定起草。 请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。 本文件由湖南 省农业农村厅提出。 本文件由湖南省农业标准化技术委员会归口。 本文件主要起草单位：湘潭市畜牧水产技术研究和推广中心 本文件主要起草人：张勇、吴买生、粟泽雄、唐卫红、刘骥德、欧朝萍、李勇、谭禹、张兴、刘传 芳、陈鸿辉、邹检、黄群、周竞、徐文倩。 DB43/T 2252—2021 IV DB43/T 2252—2021 1 莲虾生态综合种养技术规程 1 范围 本文件规定了莲虾生态种养的莲田选择、田间工程、湘莲种植、放养准备、虾的投放、投饲管理、 日常管理、病害防控、捕捞和种养记录的要求。 本文件适用于我省莲田克氏原螯虾（以下简称虾）的生态种养。 2 规范性引用文件 下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。 其中， 注日期的引用文件， 仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于本 文件。 GB 11607 渔业水质标准 GB 31650 食品中兽药最大残留限量 NY/T 391 绿色食品 产地环境技术条件 SC/T 1132 渔药使用规范 DB43/T 634 畜禽水产养殖档案记录规范 HNZ 185 绿色食品（ A）级 湘莲生产技术规程 3 术语和定义 下列术语和定义适用于本文件。 3.1 莲虾生态种 养 ecological cultivation of Lotus and shrimp 在莲田中养殖虾，莲田为虾提供生长场所，虾摄食莲田中杂草和水生生物的莲虾共生模式。 3.2 虾沟 ditch and puddle for Shrimp 在莲田中开挖的提供虾生长、繁殖的水沟。 3.3 虾沟占比 percentage of the areas of ditch and puddle 莲田中虾沟面积占莲田总面积的比例不超过 10％。 4 莲田选择 莲田底质应含沙低于 20％，保水性能好，产地环境应符合 NY/T 391的规定，水质应符合 GB 11607 的要求。 DB43/T 2252—2021 2 5 田间工程 5.1 田埂加固 用虾沟挖出的泥土加固、加高、加宽田埂。田埂应高于田面 0.8～1米，顶部宽 1～2米，坡比 1∶ （1.25～1.5）。 5.2 开沟 在莲田田埂内侧 0.5～1米处开挖环型或“ L”水沟，宽 2～4米，深0.6～0.8米，坡比 1∶1。视 莲田大小可开挖“回”或“田”型水沟。虾沟的面积不能超过莲田总面积的 10％。 5.3 防逃设施 莲田四周用石棉瓦、厚质塑料膜等制作 40～45cm高的防逃网。进水口用 40目、排水口用 60目网 片过滤防逃网。 5.4 进排水 进、排水口应分别位于莲田对角，高灌低排，定期整修。 6 湘莲种植 湘莲种植应符合 HNZ 185的规定。 7 放养准备 7.1 清田消毒 清理虾沟、修正垮塌。新开虾田可用生石灰每亩 100～150 kg消毒，留虾莲田可用茶粕每亩 20～ 25 kg消毒。 7.2 注水 沟内前期注水 10～20 cm，随着水草生长逐渐加高水位。 7.2 试水 投放虾苗前在虾沟中放置 30～50尾小苗箱，观察 24小时。 7.3 植草 10月至翌年 2月， 在虾沟中移植伊乐藻、 轮叶黑藻、 扁担草， 草间隔 5m一簇， 水草占虾沟面积 35～50％。 8 虾的投放 8.1 虾苗 虾苗应附肢齐全、无损伤，体表光泽无附着物，活力强。外购虾苗应检验检疫合格。