一、分池放養
親qin魚yu的de放fang養yang以yi促cu進jin性xing腺xian發fa育yu為wei主zhu要yao目mu的de,一yi般ban采cai用yong混hun養yang的de方fang式shi,可ke以yi充chong分fen利li用yong水shui體ti空kong間jian和he餌er料liao資zi源yuan。為wei了le掌zhang握wo親qin魚yu生sheng長chang發fa育yu情qing況kuang,便bian於yu安an排pai催cui產chan繁fan殖zhi,宜yi在zai水shui溫wen10℃左右時將原來集中在麵積較大池塘中培育的親魚,轉入到小池塘中培育。分池前要做好小池塘的消毒工作,選擇晴天每畝用生石灰100公斤化水全池潑灑。分池時,將生長發育好的親魚與生長發育差的親魚分開放養,放養密度以每畝放親魚120~150公斤為宜,且每口池塘中所放親魚在催產時能一批用完最好。
二、投餌施肥
kaichunshuiwenhuishenghou,qinyuyinxingxianzhengchuzaikuaisushengchangfayujieduan,xuyaodaliangdeyingyangwuzhi。lianyongyudeqinyuchunjipeiyu,yishifeipeiyuerliaoshengwuweizhu。fenchiqianxianzaichizhongshizujifei,yibanmeimuyuchishiyoujifei300~500公斤。鰱魚親魚池宜多施人糞尿,鱅親魚池宜多施畜糞尿。追肥要量少次多,以穩定水質,使池水既“活”又“肥”,透明度在30厘米上下。草魚親魚的春季培育應以青料為主,輔以精料。前期投喂穀芽、麥芽、糠餅等,並盡早投喂萵苣葉、黑(hei)麥(mai)草(cao)等(deng),隨(sui)後(hou)轉(zhuan)入(ru)到(dao)隻(zhi)投(tou)青(qing)飼(si)料(liao)。臨(lin)近(jin)催(cui)產(chan)期(qi),性(xing)腺(xian)發(fa)育(yu)成(cheng)熟(shu)的(de)草(cao)魚(yu)親(qin)魚(yu)攝(she)食(shi)量(liang)會(hui)明(ming)顯(xian)減(jian)少(shao)甚(shen)至(zhi)停(ting)止(zhi)攝(she)食(shi)。草(cao)魚(yu)親(qin)魚(yu)則(ze)以(yi)投(tou)喂(wei)螺(luo)蚌(beng)肉(rou)為(wei)主(zhu),輔(fu)以(yi)豆(dou)餅(bing)或(huo)配(pei)合(he)飼(si)料(liao)。為(wei)了(le)提(ti)高(gao)繁(fan)殖(zhi)效(xiao)果(guo),一(yi)般(ban)要(yao)求(qiu)投(tou)喂(wei)營(ying)養(yang)全(quan)麵(mian)的(de)人(ren)工(gong)配(pei)合(he)飼(si)料(liao),以(yi)增(zeng)強(qiang)魚(yu)種(zhong)體(ti)質(zhi),加(jia)速(su)其(qi)生(sheng)長(chang)。當(dang)魚(yu)塘(tang)表(biao)層(ceng)水(shui)溫(wen)上(shang)升(sheng)到(dao)10℃左右時,魚類開始少量攝食,便可開始進行投喂,投飼量要根據水溫和親魚的吃食情況而增減。
三、調節水質
開春後,將池水深度控製在1mizuoyou,liyushuiwenhuisheng,cujinerliaoshengwudeshengchangfanzhi,yeyouliyuqinyudesheshi。qinyuchiyaojingchangchongzhuxinshui,baochishuizhiqingxin,zengjiashuizhongrongyangliang。kaichuntousiyushifeiqian,yijiangchizhonglaoshuihuanquyiban,jiazhuxinshui,zheyangyouliyuchishuishengwenjichitangwuzhinengliangzhuanhua,cujinqinyushengchangfayu。tongshi,chunjichongshuiyeshiyixiangcujinqinyuxingxianfayudezhongyaocuoshi。lianyongcaoqinyuchiyibanmeiyuechongshui2次,每次加水5~10厘米;臨產前,鰱、鱅親魚在臨產一周,每1~2天衝水1次,或使水成微流水狀態,而草親魚在接近催產前半月內,每天衝水1次,每次2~3小時為宜。草親魚池的整個培育過程應保持水質清新,其透明度保持在35厘米以上。
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