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青虾的池塘越冬分为幼虾越冬和亲虾越冬2种。幼虾越冬是指8~9月份繁殖的虾苗,到12月份还未长到商品规格,通过越冬,留待翌年3~4月份作为放养的小虾;而亲虾越冬,则是对选留下来待来年繁殖用的青虾,对其进行强化培育,达到产卵繁殖的要求。因此,养殖户搞好青虾越冬是来年养殖的重要基础。现将青虾池塘越冬应采取的措施介绍如下: 1.池塘的选择与准备 池塘要选比较规则,避风向阳,水深1.5m以上,且水草较多的池塘。青虾的越冬自头年12月开始翌年3月份结束,时间长达4个月。越冬期间,青虾一般潜伏在
Freshwater prawn ponds over winter winter juvenile and broodstock overwintering 2 species. Juvenile juvenile shrimp refers to the breeding of shrimp from August to September, has not yet reached the product specifications in December, through the winter, to stay for the next 3 to 4 months as stocking shrimp; and brood prawns overwintering, is the election to stay To be used in the coming year breeding freshwater shrimp, its intensive cultivation, to spawn breeding requirements. Therefore, farmers do a good job of winter shrimp breeding is an important basis for breeding the following year. Now the practice of winter shrimp ponds should be taken as follows: 1. Pond selection and preparation Pond to choose more rules, sheltered from the sun, the depth of 1.5m above, and more ponds. Freshwater shrimp winter from the first year in December the end of March the following year, up to 4 months. During winter, freshwater shrimp usually lurks