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河蟹养殖,苗种是关键。如何识别河蟹苗种的优劣,装运及放养需要做哪些准备工作,要注意哪些关键事项,这些都关系到苗种成活率高低、养殖成败。如果在某一环节疏忽,将造成苗种大批死亡。 一、优质蟹苗的识别 较好的蟹苗应具备以下几点要求: (1) 蟹苗已经3～5天充分淡化暂养。也就是暂养蟹
Crab farming, seed is the key. How to identify the merits of crab seed, shipping and stocking need to do what preparatory work, to pay attention to what the key issues, which are related to the survival rate of seedlings, farming success or failure. If negligence in one aspect, will cause a large number of seed deaths. First, the identification of high-quality crabs Better crabs should have the following requirements: (1) Crab has been 3 ~ 5 days to fully dilute the holding. That is, temporary crabs