摘要
对传统河蟹池塘主养模式和藕-蟹-鱼生态养殖模式的养殖结果及水体营养状况进行了评价.结果表明,河蟹主养模式河蟹平均规格为102 g/只,经济效益为33 750元/hm2,投入产出比为1∶2.12,藕-蟹-鱼套养模式河蟹平均规格为133g/只,经济效益为56 350元/hm2,投入产出比为1∶3.94,藕-蟹-鱼套养模式比河蟹主养模式经济效益增加22 600 元/hm2,经济效益提高66.96％;河蟹主养模式池塘6、7、8月份水体为中度富营养类型,藕-蟹-鱼生态养殖模式池塘水体6月份为中营养类型,7、8月份为轻度富营养类型,总体而言,藕-蟹-鱼生态养殖模式池塘水体营养状况均好于传统的河蟹主养池塘2～3个数号级.
The study evaluated the breeding results and nutritional status of traditional ponds mainly cultured with crabs and ecological culture model of lotus root-crab-fish.The results showed that the specifications of crabs in ponds mainly cultured with crabs was 102 g/a,economic benefits was 33 750 yuan/hm2,input-output ratio was 1∶ 2.12.The specifications of crabs in ecological culture model of lotus root-crab-fish was 133 g/a,economic benefits was 56 350 yuarn/hm2,input-output ratio was 1 ∶ 3.94.Economic benefits of ecological culture model of lotus root-crab-fish increased 22 600 yuan/hm2 and 66.96％ than ponds mainly cultured with crabs.The water of ponds mainly cultured with crabs was at medium eutrophication level in June,July and August.While the water of lotus root-crab-fish ecological breeding model was at medium nutrient level in June,and lightly eutrophicated in July and August.Overall,the water nutritional status of lotus root-crab-fish ecological culture model were better than traditional ponds mainly cultured with crabs 2 to 3 orders of magnitude.
出处
《安徽农业科学》
CAS
2014年第27期9390-9392,9405,共4页
Journal of Anhui Agricultural Sciences
基金
山东省农业技术重大创新项目
山东省农业科技成果转化资金项目
关键词
河蟹池塘主养模式
藕-蟹-鱼生态养殖模式
综合营养状态指数法
养殖结果
水体营养状况
Ponds mainly cultured with crabs
Ecological culture model of lotus root-crab-fish
Comprehensive nutrition state index method
Breeding results
Water nutritional status
