上海11选5

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DINGGOUREXIAN:18651261231   13151890729

如何提高龙虾苗养殖的产量

发布日期:2018-12-26 作者: 点击:

 1、HELIDEYANGZHIMIDU

  保持合理的养殖密度,既有利于充分发挥池塘的生产力,又能提高虾的产量、规格和经济效益。如果片面追求产量而提高养殖密度,则会增加养殖管理方面的难度,小龙虾也会为争夺生存空间而自相残杀。高密度养殖产生的大量残饵和排泄物也会败坏水质,使小龙虾的生存空间进一步缩小。池塘环境对小龙虾掘洞的影响较大,在水质较肥、底层淤泥较多、有机质丰富的条件下,洞穴减少,也会导致小龙虾自相残杀。一般而论,池塘单养小龙虾的合理养殖密度是:春季(2~3月份)每亩水面投放规格为2~4厘米的幼虾3万~4万尾;夏季(7~8月份)一般不投放幼虾,而投放优质的小龙虾亲虾,每亩水面投放20~25千克,雌雄比例为3∶1;秋季(9~10月份)每亩水面投放刚离开母体的幼虾(体长10~12毫米)3万~5万尾。

  2、FANGYANGGUIGEYINGJIBENYIZHI

  ZAIFANGYANGXIAOLONGXIASHI,YAOZHUYIFANGYANGGUIGEBUNENGXIANGCHATAIDA,FOUZEBIXUCAIYONGDA、ZHONG、XIAO3ZHONGGUIGEFENCHIFANGYANG。ZAIYANGCHENGGUOCHENGZHONG,YEYAOZHUYIXIAOLONGXIADEGUIGE,RUOGUIGEDAXIAOBUYI,HUICHUXIANDAXIACHIXIAOXIADEXIANXIANG,YIZHICHENGHUOLVDADAJIANGDI,YINGXIANGYANGZHICHANLIANGDETIGAO。

  3、ZHENGQUEDITOUER

  YANGZHIXIAOLONGXIATOUERSHIGUANJIAN,TOUERSHIYINGZHUYIERLIAODEZHONGLEI、ERLIAODESHIKOUXING、TOUERLIANGDEQUEDING、ERLIAODETOUWEIFANGFAHEERLIAODETOUWEISHIJIAN5GEFANGMIANDEWENTI。XIAOLONGXIASHUZASHIXINGDONGWU,DONGWUXINGERLIAOHEZHIWUXINGERLIAOJUNNENGSHESHI。YANGZHISHENGCHANZHONGTONGCHANGTOUWEIYIXIEGULEI、CAOLEIZHIWUXINGERLIAOHEHUOLUOSIDENGDONGWUXINGSILIAO。XIAOLONGXIABIJIAOTANSHI,TOUERLIANGBUZUBUJINYINGXIANGXIAOLONGXIADEZHENGCHANGSHENGZHANG,HAIHUICHUXIANZIXIANGCANSHIXIANXIANG,SUOYIBIXUQUEBAOXIAOLONGXIANENGGOUSHESHIDAOZUGOUDEERLIAO,QIEERLIAOXINXIAN。TOUERGUOLIANGHUOTOUWEIFANGFABUDANGHUIZAOCHENGERLIAOLANGFEIHEBAIHUAISHUIZHI。YIBANANCUNTANGXIADETIZHONGLAIJISUANTOUERLIANG,SHENGZHANGWANGJI(4~9YUEFEN),TOUWEILIANGWEIXIATIZHONGDE7%~8%,QIYUJIJIEWEIXIATIZHONGDE1%~3%。SHIJITOUWEISHI,YAOJIEHEJUTIQINGKUANG,RUTIANQIQINGKUANG、SHUIZHIZHUANGKUANG、CHINEISHUISHENGDONGZHIWUDUOGUA、SHENGYUERLIAOLIANGDUOSHAODENG,LINGHUODIAOZHENGTOUWEILIANG。XIAOLONGXIAYOUZHOUFUYECHUDEXIXING,CHANGYEJIANCHULAIHUODONG、SHESHI,BAITIANYIBANYINBIZAISHUICAOCONGZHONGQIXI。SUOYI,YIBAN9∶00ZUOYOUTOUWEIZONGERLIANGDE20%~30%,17∶00ZUOYOUTOUWEI70%~80%。

  4、JISHIGAILIANGSHUIZHI

  TIANRANXIAOLONGXIAJINGCHANGSHENGHUOZAICHOUSHUIGOULI,BUSHAOYANGZHIHUCUOWUDIRENWEIXIAOLONGXIAJUYOUJIAOQIANGDENAIWUNENGLI,KEYIZAIJIAOCHADESHUIZHIHUANJINGTIAOJIANXIASHENGCUN。SHISHISHANG,SHUIZHITIAOJIANGUOCHAHUIJIANGDIXIAOLONGXIADETIZHIHEHUOLI。ZAIXIAOLONGXIAYANGZHIGUOCHENGZHONGYAOBAOCHICHISHUITOUMINGDUWEI30~40LIMI,pHZHIWEI7.5~8.5,RONGJIEYANG3HAOKE/SHENGYISHANG。WEICIYAOJIAQIANGSHUIZHIGUANLI,JINGCHANGJIAZHUXINSHUI,DINGQI(MEI15~20TIAN)POSA1CISHENGSHIHUIJIANG,MEILIFANGMISHUITIYONGLIANGWEI3~5KE,YIDIAOJIESHUIZHI,ZENGJIASHUIZHONGLIZIGAIDEHANLIANG,TIGONGXIATUIQIAOSHENGZHANGSHISUOXUDEGAIZHI。YIDANCHISHUILAOHUAYINGJISHIGENGHUAN,BAOCHICHISHUI“FEI、HUO、NEN、SHUANG”,CUJINXIAOLONGXIAJISHITUIQIAOSHENGZHANG。ZAISHUIWENSHIYI、ERLIAOCHONGZUDEQINGKUANGXIA,YIBAN60~90TIANYOUXIAJIKEDADAOMEIWEI20KEZUOYOUDESHANGPINGUIGE。

  5、ZENGJIAYINBIWU

上海11选5  XIAOLONGXIASHENGXINGXIONGMENG,YOUJIAOQIANGDEZHANDIXIXING,ZAIMEIYOUZUGOUDEDONGXUEHESHUICAOGONGQIYINBIHUOYINZANGSHI,ZICANXIANXIANGJIWEIYANZHONG。LIYONGXIAOLONGXIAXIHUANXUEJUDEXIXING,JIANLIRENGONGDONGXUEKEYOUXIAOFANGZHIXIAOLONGXIAZIXIANGCANSHA。RENGONGDONGXUEKEYIJIANZAISHUIWEIYIXIADEPODISHANG,DONGKOUZHIJING6~10LIMI,SHEN15~30LIMI。XIAOLONGXIAHAIYOUPANFUSHUICAODEXIXING,YANGZHICHIZHONGZHONGZHIHUOTOUFANGSHUIHUASHENG、LUNYEHEIZAO、FENGYANLIAN、YANZICAIJISHUIFULIANDENGSHUICAO,JIKEWEIXIAOLONGXIATIGONGYINBIWU,YOUKEZENGJIAQISHENGCUNKONGJIAN,JIANSHAOHUXIANGCANSHA。TONGSHISHUICAOHAIKEZUOWEIXIAOLONGXIADESHIWU,JIANGDIRENGONGSILIAODEXIAOHAO,JIESHENGYANGZHICHENGBEN。


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