辽宁福彩35选7走势图

龙虾苗基地

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辽宁福彩35选7走势图WANGZHI :    btardgov.cn 


大水面浅水区高效养殖小龙虾技术介绍

大水面浅水区高效养殖小龙虾技术介绍

发布日期:2018-12-25 作者: 点击:

      龙虾苗基地

      

      浅水性草型湖泊、浅水湖汊、浅水河沟和沼泽地等浅水水域,水草、螺蛳资源丰富,适宜小龙虾的人工增殖。近年来,在大水面浅水区进行小龙虾苗的养殖,采取人工种植水草和螺蛳移殖技术,每亩可产虾70-100公斤。


辽宁福彩35选7走势图  1、SHUICAOZHONGZHIHELUOSIYIZHIJUNKECANZHAOCHITANGZHONGCAOTOULUOYANGXIECHANGGUIJISHUCAOZUO。LUOSIFENGFUDE,KEBUZHONGZHIYUYIZHI;LUOSIZIYUANSHAODE,MEIMUYINGYIZHI7-10GONGJINLUOSI。


  2、龙虾苗基地,龙虾苗投放通常采取两种放养方法。一是每年4-5月,每亩放15-20公斤、规格在每公斤40尾以上的捕捞小龙虾种苗;二是每年8-9月,每亩放个体重25克以上的虾苗或亲虾10-20公斤,要求雌雄比为3:1。龙虾苗应连续投放3年,之后可自然形成种群,不必再投放淡水龙虾苗,只需加以合理捕捞和保护即可。龙虾幼苗辽宁福彩35选7走势图放养时用3-4%食盐水浸浴消毒8-10分钟。为防虾逃逸和敌害侵入,养殖水域周围和深、浅水分界处要设置隔离网。


  3、ZHUAHAOSHIFEIHETOUWEIERLIAO。LONGXIAMIAOJIDIYANGZHIXIAOLONGXIAYIBANBUSHIFEI。DANRUOFANGYANGMIDUJIAODAHUOYANGZHIQUFUYOUSHENGWUBUFENGFUSHI,YINGRENGONGSHIFEI。SHIFEIYIYONGFUSHUWUWURANDEZHU、NIUFENDENGWEIHAO,JINLIANGSHAOYONGHUOBUYONGHUAFEI。SHIFEILIANGYIBANWEIMEINIANMEIMUSHIFUSHUJIUFEI100-150GONGJIN,FEN2-3CISHIXIA。RENGONGYANGZHIDEDANSHUIXIAOLONGXIAYIBANBUXUTOUER,SHUITIZHONGDEFUYOUSHENGWU、SHUICAOHEDIQILUOSIDENGKEMANZUQISHENGZHANGSUOXU,RUYUXIADEMIDUXIANGDUIJIAODAHEYANGZHISHUIYUTIANRANERLIAOBUZUSHI,XURENGONGTOUWEISILIAO。RUCHUQINCHANPINJIAGONGDEXIAJIAOLIAO、FUPI、YUMI、CAIZIBING、GUAGUOPIDENG,LONGXIADOUXISHI。SHENGZHANGJIJIEYIBAN15-20TIANTOUERYICI,MEICIMEIMUTOU7-10GONGJIN。


辽宁福彩35选7走势图  4、KEXUEBULAO。KAOLVDAOZIYUANDEZHONGFULIYONGHEMEINIANDEGAOCHANGAOXIAO,YANGZHICHENGGONGHOUQUEDINGHELIDEBULAOGUIGEHESHULIANGSHIJIQIZHONGYAODE。BULAOSHIYAOXUANYONGJIAODAWANGMUDEWANG,JIANGDANZHITIZHONG15KEYISHANGDECHENGPINXIABULAOSHANGSHI,DIYU15KEDELIUXIA,FANGZAIYANGZHISHUIYUJIXUSHENGZHANG。


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关键词:龙虾苗基地,成品虾,龙虾苗

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