分完全自然繁殖和半自然繁殖兩種方法。
完全自然繁殖:又(you)叫(jiao)誘(you)集(ji)繁(fan)殖(zhi),是(shi)利(li)用(yong)泥(ni)鰍(qiu)的(de)自(zi)然(ran)資(zi)源(yuan),人(ren)工(gong)誘(you)集(ji)其(qi)產(chan)卵(luan)群(qun)體(ti)並(bing)獲(huo)得(de)受(shou)精(jing)卵(luan)的(de)方(fang)法(fa)。采(cai)用(yong)此(ci)法(fa)時(shi),首(shou)先(xian)在(zai)產(chan)卵(luan)季(ji)節(jie),利(li)用(yong)泥(ni)鰍(qiu)的(de)產(chan)卵(luan)習(xi)性(xing),即(ji)喜(xi)在(zai)岸(an)邊(bian)的(de)水(shui)草(cao)叢(cong)中(zhong)產(chan)卵(luan),相(xiang)應(ying)地(di)選(xuan)擇(ze)環(huan)境(jing)僻(pi)靜(jing)的(de)水(shui)草(cao)區(qu),先(xian)在(zai)淺(qian)水(shui)處(chu)投(tou)施(shi)2筐草木灰,然後在誘產區施0.6一0.8千克的豬、牛、yangdengchufenshui,zheyangnengyoujidaliangniqiudaociquyudeshuicaocongzhongchanluanfanzhi,danyingduiciziranquyucaiquxiangyingdebaohucuoshi,yifangqingwadengdihaiqinru,yingxiangfanzhixiaoguo。yekeliyongrengongyuchaoshoujiziranshuiyuzhongdeshoujingluan,yidaotedingderongqizhongfuhua,zheyangketigaofuhualv。
半自然繁殖:是(shi)在(zai)人(ren)工(gong)條(tiao)件(jian)下(xia),讓(rang)成(cheng)熟(shu)的(de)泥(ni)鰍(qiu)自(zi)行(xing)交(jiao)配(pei)產(chan)卵(luan)的(de)方(fang)法(fa)。此(ci)法(fa)需(xu)要(yao)建(jian)造(zao)產(chan)卵(luan)池(chi)和(he)孵(fu)化(hua)設(she)施(shi),繁(fan)殖(zhi)之(zhi)前(qian),產(chan)卵(luan)池(chi)與(yu)孵(fu)化(hua)設(she)備(bei)都(dou)要(yao)消(xiao)好(hao)毒(du)備(bei)用(yong)。親(qin)鰍(qiu)的(de)雌(ci)雄(xiong)配(pei)比(bi):如雄鰍個體較大,按1:1.5或1:2,若雄鰍體長僅10厘米左右,則雌雄比可調整為1:3一4,增加雄鰍的數量。每平方米可放7一10組。為保證正常繁殖,水溫宜穩定在18℃以上時進行,在北方大概要到每年的5月中旬,長江兩岸水域在每年的4月下旬,南方在每年的3月底、4yueshangxunjiukeyijinxing。jiangyuchaobangzhazaizhuganshang,xuandiaozaichanluanchidezhongjianhuosijiao,shizhijinmeizaishuimianxia。lingwai,yinniqiuluannianxingcha,yinciyaozhuyijianzhaheqingxichenjizaiyuchaoshangdewuwu,yimianyingxiangshoujingluandenianfuxiaoguo。
泥鰍一般在晴天的早晨產卵,上午10時shi左zuo右you產chan卵luan結jie束shu。當dang產chan卵luan基ji本ben結jie束shu後hou,就jiu立li即ji將jiang粘zhan有you卵luan粒li的de魚yu巢chao移yi到dao孵fu化hua池chi或huo其qi他ta孵fu化hua設she施shi中zhong進jin行xing孵fu化hua,並bing更geng換huan和he補bu充chong新xin魚yu巢chao放fang到dao產chan卵luan池chi中zhong,以yi收shou集ji尚shang未wei產chan卵luan的de親qin鰍qiu的de卵luan。最zui後hou一yi批pi泥ni鰍qiu產chan卵luan後hou,可ke以yi就jiu在zai產chan卵luan池chi內nei進jin行xing孵fu化hua,但dan一yi定ding要yao將jiang產chan卵luan池chi內nei的de親qin鰍qiu全quan部bu捕bu出chu,以yi防fang親qin鰍qiu吞tun食shi魚yu巢chao上shang的de卵luan粒li,影ying響xiang出chu苗miao率lv。
手機版




