一种稻田养殖大规格全雄罗氏沼虾的养殖方法

CN117898230BActive 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
2023-12-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing rice paddy farming models, the marketable size of giant freshwater prawns is relatively small, and there is a lack of research on large-sized prawns. Furthermore, the high-density intensive farming in traditional ponds results in low prices for small-sized prawns and insufficient economic benefits.

Method used

The method of raising large-sized, all-male giant freshwater prawns in rice paddies involves digging T-shaped ditches in the paddies, planting aquatic plants, and releasing all-male giant freshwater prawn larvae at suitable water temperatures. Combined with precise feeding, optimized stocking density, and water quality management, large-sized prawns can be raised.

Benefits of technology

The method yielded large-sized giant freshwater prawns with an individual weight of ≥60g and a male rate of over 90%, which improved the overall yield of rice paddies, reduced the use of pesticides and fertilizers, achieved a mutually beneficial symbiotic relationship between rice and prawns, and improved economic benefits.

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Abstract

本发明公开一种稻田养殖大规格全雄罗氏沼虾的养殖方法,其包括以下步骤:步骤S1:将稻田开挖成具有T字形沟的稻田,稻田平台上插秧种稻,稻田水温高于16℃时,T字形沟中开始种植水草,稳定水质,水草为轮叶黑藻;步骤S2:全雄罗氏沼虾苗在温室大棚小池塘进行标粗暂养,待室外稻田水沟中水温≥20℃以及全雄罗氏沼虾苗养殖规格达到平均规格达5~13g / 只时,将其放入所述稻田养殖;步骤S3:全雄罗氏沼虾苗在稻田养殖15天之后投喂饲料,饲料粒径从1.6mm依次递增至2.5mm,饲料蛋白含量为35~40%干重,投喂量为存塘虾所有个体总重量的1~3%,投食频率为每日1~2次;步骤S4:稻田水温低于18℃捕捞,收割水稻。
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