近年来,养蟹的病害频频暴发,给河蟹养殖业造成了较大的危害。研究证明,河蟹的病害与蟹池的底质关系很大。因为河蟹是爬行动物,一生中的大部分时间是在底泥中度过的,所以蟹池的底质不仅对成蟹的色泽、鲜度会产生直接影响,而且许多蟹病（特别是传染性疾病与寄生虫病）的流行、发生都与藏污纳垢的底质有关联。 养蟹池塘经过1年或多年的养殖生产,由于死亡的生物体、蟹的粪便、残剩饲料等不断积累,加上池埂下塌的泥沙混和,使池底形成了一定厚度的淤泥。蟹池中的淤泥过多,有机质在细菌的作用下,氧化分解,消耗大量的氧,往往使池塘中本来就不多的氧消耗殆尽,造 In recent years, frequent crab disease outbreaks, causing crab aquaculture caused greater harm. Studies have shown that the crab’s disease and crab pool of sediment has a great relationship. Because crabs are reptiles, spend most of their life in the sediment, so the crab pool of substrate not only crab color, freshness will have a direct impact, and many crab disease (especially infectious Diseases and parasitic diseases) have been linked to the sediment of the soil. After one or more years of aquaculture, the crab ponds continue to accumulate due to dead organisms, crab’s excrement, residual feed, etc., and sediment mixed with the ponds, resulting in a certain thickness of sludge formed at the bottom of the pond. Crab pond too much sludge, organic matter in the role of bacteria, oxidative decomposition, consume large amounts of oxygen, often the pond has been depleted of less oxygen, made