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稻田人工养殖河蟹，由于受到环境条件的限制，或管理不当，很容易死亡，究其原因有以下几点：1．水质污染：稻田养蟹池中，四。周常有含农药、化肥或含盐较高的积水流进地内，致使池内水质受到污染．造成河蟹中毒死亡。2．病菌感染：稻田养蟹过程中，由于运输、暂养等各种环节?
Cows cultured in paddy fields are easily killed due to environmental conditions or improper management. The reasons are as follows: 1. Water pollution: paddy crab pool, four. Zhou Chang often contain pesticides, fertilizers or salt water with high flow into the ground, resulting in pollution of the pool water quality. Crab poisoning caused death. 2. Germs infection: rice crabs in the process, due to transport, holding and other links?