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河蟹习惯生活在湖泊、草荡等天然大水面中,而池塘小水体中的溶氧、pH值以及其他因子很容易变化。河蟹对低溶氧的水域或水质差的环境反应,一是纷纷爬上岸,不肯下水,二是不吃食,直至水质改善,从而严重影响生长发育。因此在池塘养蟹中,搞好水质控制管理是一项极其重要的工作。 1.根据不同季节管理水质。春季蟹种放养后,为了提高水温,促进河蟹生长,蟹池水位可适当浅一些,水深一般可控制在0.4—
Crab habitat living in lakes, turf and other natural surface water, and small pond water dissolved oxygen, pH and other factors can easily change. Crab on low oxygen water or poor water quality of the environment, one has climbed ashore, refused to launch, and second, do not eat until the water quality improvement, which seriously affect the growth and development. Therefore, crab in the pond, improve water quality control management is an extremely important task. 1. According to different seasons management of water quality. Spring crab species stocking, in order to raise the water temperature and promote the growth of crab, crab pond water level may be appropriate shallow water depth can generally be controlled at 0.4-