1.直接從野外捕捉野生黃鱔種苗。每年4-10月份,可以在稻田和淺水溝渠中用鱔籠捕捉,特別是悶熱天或雷雨後,出來活動的黃鱔最多,晚間多於白天。一人一次可以帶200隻鱔籠黃鱔種苗。晚上或者雷雨過後放入田間的水溝中,幾個小時以後就可以捕捉到黃鱔。用鱔籠捕捉黃鱔時,要注意兩點:一是最好用蚯蚓作誘餌,每隻籠子一晚上取鱔苗2-3次;ershibushanlongfangrushuizhongdeshihou,yidingyaojianglongweishaoshaoluchushuimian,yibianshihuangshanzailongzizhonghuxikongqi,fouzehuimensihuodeshangqueyangzheng。limingshijiangshanlongshouhui,jianggetidadehuangshanzhongmiaochushou,xiaodeliuzuoshanzhong。yongzhezhongfangfabudaodehuangshanzhongmiao,tijianwushang,siyangchenghuolvgao。
lingyizhongfangfashiwanshangdiandengzhaoming,yantiangengqugoubianxunshi,faxianchulaimishideshanyu,yongbushanjiabuzhuohuotushoubuzhuo。buzhuoshi,jinkenengbusunshanghuangshandeshenti。budaodehuangshanmiaoyinggaimashangfangyang。
2.在市場上采購鱔種;yaoxuanzejianzhuangwushangdehuangshan。yinggaixuangouyizhichuyuhuanshuizanyangzhuangtaidelongbuzhuohuangshanzhongmiaozuoweisiyangduixiang。fanshishoudaonongyaoqinhaidehuangshanheyaobudehuangshandoubunengzuozhongmiaofangyang。yibankeyijianghuangshanpinzhongfenweisanzhong:第一種,體色黃身上有大斑點,這種鱔種生長快;第二種,體色青黃,這種鱔種生長一般;第三種,體色灰,斑點細密,這種鱔苗則生長不快。鱔苗應該分開飼養。每公斤鱔種生產成鱔的增重倍數是:第一種為1:5~6;第二種為1:3~4;第三種為1:1~2。鱔種的大小最好是每公斤20~50尾,規格太小,成活率低,當年還不能上市;規(gui)格(ge)太(tai)大(da),增(zeng)重(zhong)倍(bei)數(shu)低(di),單(dan)位(wei)淨(jing)產(chan)量(liang)不(bu)高(gao),經(jing)濟(ji)效(xiao)益(yi)低(di)。不(bu)過(guo)這(zhe)也(ye)不(bu)是(shi)絕(jue)對(dui)的(de),放(fang)養(yang)哪(na)一(yi)種(zhong)規(gui)格(ge)的(de)鱔(shan)種(zhong)還(hai)得(de)考(kao)慮(lv)市(shi)場(chang)因(yin)素(su)。如(ru)果(guo)春(chun)節(jie)前(qian)後(hou)市(shi)場(chang)上(shang)規(gui)格(ge)大(da)的(de)商(shang)品(pin)鱔(shan)價(jia)格(ge)很(hen)高(gao),養(yang)殖(zhi)者(zhe)也(ye)可(ke)以(yi)適(shi)當(dang)考(kao)慮(lv)放(fang)養(yang)大(da)規(gui)格(ge)的(de)鱔(shan)種(zhong)。
3.半人工繁殖的苗種培育。這裏我分兩個層次講:
(1)模擬野外自然產卵環境,在養殖池中讓其自然繁殖。每年年底,從人工養殖的成鱔苗中,選擇體格健壯、尾重100~200克,體色黃而有光澤的個體,集中在富含有機質土壤的池中越冬,待轉年6~7月自然產卵繁殖。當池中水溫達到15℃yishangshi,yaojiaqiangduizhepishanyudetouerweiyang。zaifanzhiqiyaomiqiezhuyishanyuchanchudeluanhefuhuadeshanmiao,faxianluanhoukeyiquchulaizhuanmenfuhua,faxianmiaoyeyaojishilaochuanbutongguigefenchifangyang,yifangdashanyuchixiaoshanyu、相xiang互hu殘can食shi。在zai培pei育yu池chi內nei,可ke以yi先xian用yong雞ji糞fen等deng有you機ji肥fei培pei育yu出chu浮fu遊you生sheng物wu,然ran後hou將jiang鱔shan苗miao放fang入ru,讓rang鱔shan苗miao靠kao吃chi浮fu遊you動dong物wu生sheng長chang。如ru果guo浮fu遊you動dong物wu不bu足zu,則ze可ke以yi輔fu助zhu投tou喂wei一yi些xie煮zhu熟shu的de蛋dan黃huang漿jiang。幼you鱔shan一yi經jing開kai始shi吃chi食shi,就jiu可ke以yi逐zhu漸jian分fen散san活huo動dong。
(2)在野外收集黃鱔受精卵,然後人工孵化育苗。在每年盛夏的時候,有些湖岸沼澤地區和農村的水溝、水(shui)稻(dao)田(tian),常(chang)常(chang)可(ke)以(yi)見(jian)到(dao)一(yi)些(xie)泡(pao)沫(mo)團(tuan)狀(zhuang)物(wu)漂(piao)浮(fu)在(zai)水(shui)麵(mian)上(shang),這(zhe)有(you)可(ke)能(neng)是(shi)黃(huang)鱔(shan)的(de)孵(fu)化(hua)巢(chao)。當(dang)發(fa)現(xian)這(zhe)種(zhong)現(xian)象(xiang)時(shi),應(ying)該(gai)及(ji)時(shi)用(yong)瓢(piao)或(huo)盛(sheng)飯(fan)的(de)勺(shao)子(zi)輕(qing)輕(qing)將(jiang)它(ta)撈(lao)起(qi),放(fang)在(zai)已(yi)經(jing)盛(sheng)入(ru)新(xin)水(shui)的(de)麵(mian)盆(pen)或(huo)水(shui)桶(tong)中(zhong)。而(er)後(hou),將(jiang)鱔(shan)卵(luan)小(xiao)心(xin)地(di)放(fang)在(zai)鱔(shan)卵(luan)孵(fu)化(hua)器(qi)中(zhong)孵(fu)化(hua)。孵(fu)化(hua)期(qi)間(jian)的(de)管(guan)理(li)和(he)剛(gang)才(cai)我(wo)們(men)講(jiang)到(dao)的(de)人(ren)工(gong)繁(fan)殖(zhi)孵(fu)化(hua)期(qi)間(jian)的(de)管(guan)理(li)是(shi)一(yi)樣(yang)的(de)。介(jie)紹(shao)一(yi)下(xia)野(ye)生(sheng)黃(huang)鱔(shan)種(zhong)苗(miao)的(de)采(cai)集(ji)方(fang)法(fa)。一(yi)共(gong)有(you)三(san)種(zhong)方(fang)法(fa),我(wo)分(fen)別(bie)來(lai)做(zuo)介(jie)紹(shao):
1.直接從野外捕捉野生黃鱔種苗。每年4-10月份,可以在稻田和淺水溝渠中用鱔籠捕捉,特別是悶熱天或雷雨後,出來活動的黃鱔最多,晚間多於白天。一人一次可以帶200隻鱔籠黃鱔種苗。晚上或者雷雨過後放入田間的水溝中,幾個小時以後就可以捕捉到黃鱔。用鱔籠捕捉黃鱔時,要注意兩點:一是最好用蚯蚓作誘餌,每隻籠子一晚上取鱔苗2-3次;ershibushanlongfangrushuizhongdeshihou,yidingyaojianglongweishaoshaoluchushuimian,yibianshihuangshanzailongzizhonghuxikongqi,fouzehuimensihuodeshangqueyangzheng。limingshijiangshanlongshouhui,jianggetidadehuangshanzhongmiaochushou,xiaodeliuzuoshanzhong。yongzhezhongfangfabudaodehuangshanzhongmiao,tijianwushang,siyangchenghuolvgao。
lingyizhongfangfashiwanshangdiandengzhaoming,yantiangengqugoubianxunshi,faxianchulaimishideshanyu,yongbushanjiabuzhuohuotushoubuzhuo。buzhuoshi,jinkenengbusunshanghuangshandeshenti。budaodehuangshanmiaoyinggaimashangfangyang。
2.在市場上采購鱔種;yaoxuanzejianzhuangwushangdehuangshan。yinggaixuangouyizhichuyuhuanshuizanyangzhuangtaidelongbuzhuohuangshanzhongmiaozuoweisiyangduixiang。fanshishoudaonongyaoqinhaidehuangshanheyaobudehuangshandoubunengzuozhongmiaofangyang。yibankeyijianghuangshanpinzhongfenweisanzhong:第一種,體色黃身上有大斑點,這種鱔種生長快;第二種,體色青黃,這種鱔種生長一般;第三種,體色灰,斑點細密,這種鱔苗則生長不快。鱔苗應該分開飼養。每公斤鱔種生產成鱔的增重倍數是:第一種為1:5~6;第二種為1:3~4;第三種為1:1~2。鱔種的大小最好是每公斤20~50尾,規格太小,成活率低,當年還不能上市;規(gui)格(ge)太(tai)大(da),增(zeng)重(zhong)倍(bei)數(shu)低(di),單(dan)位(wei)淨(jing)產(chan)量(liang)不(bu)高(gao),經(jing)濟(ji)效(xiao)益(yi)低(di)。不(bu)過(guo)這(zhe)也(ye)不(bu)是(shi)絕(jue)對(dui)的(de),放(fang)養(yang)哪(na)一(yi)種(zhong)規(gui)格(ge)的(de)鱔(shan)種(zhong)還(hai)得(de)考(kao)慮(lv)市(shi)場(chang)因(yin)素(su)。如(ru)果(guo)春(chun)節(jie)前(qian)後(hou)市(shi)場(chang)上(shang)規(gui)格(ge)大(da)的(de)商(shang)品(pin)鱔(shan)價(jia)格(ge)很(hen)高(gao),養(yang)殖(zhi)者(zhe)也(ye)可(ke)以(yi)適(shi)當(dang)考(kao)慮(lv)放(fang)養(yang)大(da)規(gui)格(ge)的(de)鱔(shan)種(zhong)。
3.半人工繁殖的苗種培育。這裏我分兩個層次講:
(1)模擬野外自然產卵環境,在養殖池中讓其自然繁殖。每年年底,從人工養殖的成鱔苗中,選擇體格健壯、尾重100~200克,體色黃而有光澤的個體,集中在富含有機質土壤的池中越冬,待轉年6~7月自然產卵繁殖。當池中水溫達到15℃yishangshi,yaojiaqiangduizhepishanyudetouerweiyang。zaifanzhiqiyaomiqiezhuyishanyuchanchudeluanhefuhuadeshanmiao,faxianluanhoukeyiquchulaizhuanmenfuhua,faxianmiaoyeyaojishilaochuanbutongguigefenchifangyang,yifangdashanyuchixiaoshanyu、相xiang互hu殘can食shi。在zai培pei育yu池chi內nei,可ke以yi先xian用yong雞ji糞fen等deng有you機ji肥fei培pei育yu出chu浮fu遊you生sheng物wu,然ran後hou將jiang鱔shan苗miao放fang入ru,讓rang鱔shan苗miao靠kao吃chi浮fu遊you動dong物wu生sheng長chang。如ru果guo浮fu遊you動dong物wu不bu足zu,則ze可ke以yi輔fu助zhu投tou喂wei一yi些xie煮zhu熟shu的de蛋dan黃huang漿jiang。幼you鱔shan一yi經jing開kai始shi吃chi食shi,就jiu可ke以yi逐zhu漸jian分fen散san活huo動dong。
(2)在野外收集黃鱔受精卵,然後人工孵化育苗。在每年盛夏的時候,有些湖岸沼澤地區和農村的水溝、水shui稻dao田tian,常chang常chang可ke以yi見jian到dao一yi些xie泡pao沫mo團tuan狀zhuang物wu漂piao浮fu在zai水shui麵mian上shang,這zhe有you可ke能neng是shi黃huang鱔shan的de孵fu化hua巢chao。當dang發fa現xian這zhe種zhong現xian象xiang時shi,應ying該gai及ji時shi用yong瓢piao或huo盛sheng飯fan的de勺shao子zi輕qing輕qing將jiang它ta撈lao起qi,放fang在zai已yi經jing盛sheng入ru新xin水shui的de麵mian盆pen或huo水shui桶tong中zhong。而er後hou,將jiang鱔shan卵luan小xiao心xin地di放fang在zai鱔shan卵luan孵fu化hua器qi中zhong孵fu化hua。孵fu化hua期qi間jian的de管guan理li和he剛gang才cai我wo們men講jiang到dao的de人ren工gong繁fan殖zhi孵fu化hua期qi間jian的de管guan理li是shi一yi樣yang的de。
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