养殖的小龙虾出现死亡,怎么办

养殖的小龙虾出现死亡,怎么办
2025-04-08 10:32:24
推荐回答(1个)
回答1:

龙虾死亡的原因主要有:
1、水草多。今年大多数死亡小龙虾的塘口伊乐藻都比较多,夏季是伊乐藻的休眠期,脱根快,密度大的地方伊乐藻死亡严重,水体恶化,水体中H2S高,甲烷和沼气等有害气体发生快,造成小龙虾中毒死亡。
2、杂藻多。由于今年大多数池塘水体状况一直平稳,在进入高温季节后大多没有施过生物有机肥,池塘杂藻多,特别是蓝藻的发生造成小龙虾藻毒素中毒。
3、钙源补充少。大多数池塘死亡的小龙虾都是软壳虾,主要是外河水水质差,不能加进池塘使用,使得池塘里的钙源少,养殖户没有及时补充钙造成小龙虾缺钙活动能力弱造成死亡。
4、由于池塘里小龙虾死亡,加之互相残杀严重,大部分小龙虾患有严重的肠炎病,小龙虾的肌肉发红壳发黑。
处理措施:
1、上午使用多效底改,每袋用5亩,下午使用臭氧底改王。连用2—3天。
2、第三天使用生物益水素,连用二天,每袋1米水深用2亩。
3、每100公斤料加三黄粉500克、200克大蒜素、500克VC。
4、使用VC+硬壳宝全池泼洒,每亩用VC200克加硬壳宝250克。

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