一种华东地区稻田养殖一龄性早熟母蟹的方法

By digging cross-shaped ditches in paddy fields to plant specific aquatic plants and releasing juvenile crabs, the problem of low yield of one-year-old early-maturing crabs in the rice-crab co-cultivation model in East China has been solved, realizing efficient large-sized one-year-old early-maturing crab farming and improving the overall benefits of rice and crabs.

CN119096918BActive Publication Date: 2026-07-17SHANGHAI OCEAN UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI OCEAN UNIV
Filing Date
2024-10-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In East China, the rice-crab co-cultivation model makes it difficult to balance crab breeding and rice planting, resulting in low yields, inconsistent sizes, and low market value of one-year-old early-maturing crabs.

Method used

Dig a cross-shaped ditch in the middle of the paddy field, plant water hyacinth and/or giant water hyacinth, as well as Elodea and/or Hydrilla verticillata. After transplanting rice seedlings, release female juvenile crabs when the water temperature is suitable, feed them with crab farming feed, and harvest them after the early maturity rate reaches 70-90%. Combine paddy field management techniques to optimize water quality and feeding strategies.

Benefits of technology

This method has enabled high-yield and high-specification farming of large-sized, one-year-old early-maturing crabs in rice paddies, with yields exceeding 50 jin/mu and sizes exceeding 30g, thereby improving the overall profitability of rice cultivation and reducing feed costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种华东地区稻田养殖一龄性早熟母蟹的方法。稻田中间挖宽0.3‑4m,深0.3‑0.8m的“十”字沟,在沟中种植水花生或者大头翁水草,搭配少量伊乐藻或者轮叶黑藻;河蟹大眼幼体在苗种池塘集中暂养≥45天;待稻田秧苗返青后,且河蟹大眼幼体发育至六期仔蟹后,稻田平均水温≥18℃,挑选六期雌体仔蟹投放进入稻田沟中;河蟹仔蟹雌体在稻田中养殖前20天内主要依靠水草和稻田浮游生物与底栖生物提供饵料,当伊乐藻 / 轮叶黑藻水草数量大量减少时,开始投喂扣蟹饲料;河蟹一龄性早熟个体比例达到70%后开始育肥,育肥20天后开始捕捞,捕捞完毕后降水收割水稻。该方法能实现稻田养殖母蟹一龄性早熟率≥90%,亩产一龄性早熟蟹>50斤,且规格较大。
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