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在河蟹养殖过程中,如何模拟自然环境,实行生态养殖,除了在池塘中栽种适口水草外,还需在科学投喂饵料和池水管理等方面下功夫。一、模拟自然环境栽种水草。河蟹喜欢吃的水草以苦草、扁担草为主,一般掌握在3月下旬河蟹起捕清塘后播种,宜早不宜迟,否则幼草容易过早被河蟹吃光,影响鲜草生长。没有栽种水草条件的池塘,要在四边投放适量的水花生、水葫芦,投放数量占池水的1/3左右,给河蟹创造一个栖息、脱壳场所。
In the crab farming process, how to simulate the natural environment, the implementation of ecological farming, in addition to planted in the pond palatability, but also in scientific feeding bait and water management efforts. First, simulate the natural environment planted water plants. Crabs like to eat water plants with bitter grass, pole grass-based, generally in late March crab catches Qingchi after sowing, should not be early as soon as possible, or grass is easy to premature eaten crab, affecting fresh grass growth. Ponds not planted with aquatic plants should be given proper amounts of peanuts and water hyacinths on the four sides, accounting for about one-third of the total amount of water they provide, so as to create a habitat and shelled place for the crabs.