草鱼种与泥鳅池塘双主养模式养殖试验

2015-10-21 18:06:31郭闯张敏魏仲高等
安徽农业科学 2015年31期

郭闯 张敏 魏仲高等

摘要[目的]降低草鱼池塘养殖生产成本,提高池塘水体利用率和综合养殖效益,增强养殖模式的抗风险能力以及示范推广作用。[方法]在江苏省宿迁市宿城区中扬镇开展了草苗种、泥鳅池塘双主养模式养殖试验。[结果]放养260尾/kg的泥鳅苗种180 000尾/hm2,放养2 000尾/kg的草苗种60 000尾/hm2的养殖模式,以及放养260尾/kg的泥鳅苗种120 000尾/hm2,放养2 000尾/kg的草苗种75 000尾/hm2的养殖模式,产出投入比均较高。[结论] 放养260尾/kg的泥鳅苗种120 000尾/hm2,放养2 000尾/kg的草苗种75 000尾/hm2的养殖模式更容易被养殖者接受,更容易被大面积推广应用。

关键词草鱼种;泥鳅;双主养模式

中图分类号S962.92文献标识码A文章编号0517-6611(2015)31-116-02

Preliminary Experiment on Double Main Culture Model of Grass Carp Fingerling and Loach in Highyield Ponds

GUO Chuang1, ZHANG Min1, WEI Zhonggao2, CHEN Huangen1* et al

(1. Jiangsu Fishery Technology Extension Center, Nanjing, Jiangsu 210036; 2. Crab Culture Specialized Cooperative, Suqian, Jiangsu 223836)

Abstract [Objective] The research aimed to improve the utilization rate of water system in grass carp fingerling pond, the composite culture benefit, the anti-risk ability, the achievements of demonstration and extension. [Method] Efficient culture experiment was made in the breeding base in Zhongyang Town, Sucheng District of Suqian City in Jiangsu Province. [Result] The outputinput ratio of the experiment result of 2# pond(stocking 180 000 ind./hm2 loach with the size of 260 ind./kg and 60 000 ind./hm2 grass carp fingerling with the size of 2 000 ind./kg) and 3# pond(stocking 120 000 ind./hm2 loach with the size of 260 ind./kg and 75 000 ind./hm2 grass carp fingerling with the size of 2 000 ind./kg) showed higher economic efficiency. [Conclusion] The recommended efficient double main culture model of grass carp fingerling and loach was stocking 120 000 ind./hm2 loach with the size of 260 ind./kg and 75 000 ind./hm2 grass carp fingerling with the size of 2 000 ind./kg.

Key wordsGrass carp fingerling; Loach; Double main culture model

近年来,常规鱼养殖由于养殖成本逐年增加、商品鱼市场需求量下降,其售价不断降低。通过江苏宿迁市及周边地区相关调研情况可知,尾重1.5 kg的草鱼(Ctenopharyngodon idella),其塘口价仅8.0~8.4元/kg,且压塘率高达42%,广大水产养殖户辛辛苦苦一年往往赚不到钱,甚至亏损,严重影响了渔农民的养殖积极性。为了降低常规鱼单养模式的市场风险,充分利用水体空间,降低养殖生产成本,增加渔农民养殖效益,2014年江苏省渔业技术推广中心联合宿城区恒峰河蟹养殖专业合作社开展了草鱼种与泥鳅(Misgurnus anguillicaudatus)双主养模式养殖试验,取得了良好效果。

1材料與方法

1.1池塘条件在宿城区恒峰河蟹养殖专业合作社中扬镇唐莫村养殖基地选择试验池塘3口(1#、2#、3#),面积均为0.67 hm2,最大水深可达2.0 m,淤泥厚度15~20 cm,其条件均符合NY/T 52812004的规定,养殖用水符合NY 5361的规定;进水管口套置60目/80目筛绢网袋,以备滤过注水;……

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