黃(huang)鱔(shan)有(you)廣(guang)闊(kuo)的(de)銷(xiao)售(shou)市(shi)場(chang)和(he)較(jiao)高(gao)的(de)銷(xiao)售(shou)價(jia)格(ge),然(ran)而(er)眾(zhong)多(duo)養(yang)殖(zhi)者(zhe)卻(que)因(yin)技(ji)術(shu)信(xin)息(xi)缺(que)乏(fa)等(deng)原(yuan)因(yin),盲(mang)目(mu)養(yang)殖(zhi)而(er)導(dao)致(zhi)失(shi)敗(bai)。主(zhu)要(yao)表(biao)現(xian)在(zai)如(ru)下(xia)幾(ji)個(ge)方(fang)麵(mian)。
1.亂購苗種。目前,我國黃鱔人工繁殖技術尚未達到大批量生產供應商品養殖的水平,許多養殖戶到湖北武漢等地購買的所謂"特大黃鱔"苗種或其他所謂的"優質"苗(miao)種(zhong),實(shi)為(wei)從(cong)市(shi)場(chang)上(shang)購(gou)買(mai)的(de)野(ye)生(sheng)鱔(shan)苗(miao),且(qie)這(zhe)些(xie)苗(miao)種(zhong)因(yin)商(shang)販(fan)長(chang)時(shi)間(jian)不(bu)科(ke)學(xue)的(de)高(gao)密(mi)度(du)貯(zhu)存(cun)及(ji)反(fan)複(fu)轉(zhuan)運(yun),多(duo)數(shu)已(yi)患(huan)上(shang)發(fa)燒(shao)病(bing),用(yong)於(yu)養(yang)殖(zhi)時(shi)死(si)亡(wang)率(lv)可(ke)達(da)90%~100%.所suo以yi,購gou買mai苗miao種zhong時shi切qie記ji要yao認ren真zhen辨bian別bie。一yi般ban人ren工gong養yang殖zhi黃huang鱔shan可ke選xuan擇ze引yin進jin優you良liang繁fan殖zhi種zhong鱔shan進jin行xing半ban人ren工gong繁fan殖zhi或huo自zi然ran繁fan殖zhi來lai獲huo取qu鱔shan苗miao,也ye可ke自zi己ji在zai本ben地di選xuan購gou優you質zhi鱔shan苗miao用yong於yu催cui肥fei養yang殖zhi。
2.把書店的參考書當法寶。目前,國內的養鱔技術書籍雖然已有10來lai種zhong版ban本ben,但dan其qi內nei容rong基ji本ben上shang都dou是shi照zhao搬ban一yi般ban的de養yang魚yu技ji術shu或huo搬ban出chu一yi些xie空kong洞dong的de理li論lun來lai故gu弄nong玄xuan虛xu,真zhen正zheng的de實shi用yong經jing念nian是shi少shao之zhi又you少shao,僅jin依yi靠kao這zhe些xie技ji術shu是shi很hen難nan取qu得de成cheng功gong的de。初chu涉she養yang鱔shan者zhe最zui好hao是shi到dao國guo內nei知zhi名ming的de養yang鱔shan企qi業ye或huo養yang鱔shan大da戶hu處chu現xian場chang參can觀guan學xue習xi,以yi掌zhang握wo切qie實shi可ke行xing的de養yang鱔shan技ji術shu。
3.大小混養。同一池(網箱)中zhong大da小xiao黃huang鱔shan混hun養yang,小xiao鱔shan不bu敢gan爭zheng食shi而er體ti質zhi逐zhu漸jian衰shuai弱ruo甚shen至zhi死si亡wang。餌er料liao不bu足zu時shi會hui發fa生sheng黃huang鱔shan相xiang互hu殘can食shi。因yin此ci,大da小xiao黃huang鱔shan混hun養yang時shi,雖sui大da鱔shan長chang速su快kuai,但dan整zheng體ti產chan量liang過guo低di。
4.chishuiguoshen。huangshanyuyibandeyuleibutong,qizhuyaohuxitujingbushikaosaiershiyikaoyanqiang,youyinhuangshantineijiegouwubiao,bunengzaibutongshuicengsuiyipiaofutingliu,bixuluchushuimianhuxikongqi。chishuiguoshen,huangshanxupinfanyouzhishuimianhuxierxiaohaodaliangtili,yingxiangzhengchangshenghuoshengchang。chiyanghuangshanjushantidaxiaoshuishenyizai20-30厘米左右,而網箱養鱔水草應盡量充滿整個網箱,以便為黃鱔提供良好的棲息和呼吸條件。
5.濫施糞肥。鱔池水體小,施糞肥極易敗壞水質,誘發疾病。
6.忽視培植水草。水草能為黃鱔養殖防暑降溫、淨化水質並能為黃鱔提供優良的隱蔽場所。沒有水草的鱔池無法營造良好的生態環境,養殖黃鱔也難成功,很難實現高產量、高效益。
7.偏"素"缺"葷".有的養殖者利用麥麩、菜餅、豆渣、米飯、青qing菜cai等deng植zhi物wu性xing餌er料liao喂wei黃huang鱔shan,黃huang鱔shan嚴yan重zhong饑ji餓e,缺que餌er時shi也ye會hui少shao量liang吞tun食shi,但dan其qi營ying養yang卻que滿man足zu不bu了le黃huang鱔shan生sheng命ming活huo動dong的de需xu要yao,更geng談tan不bu上shang生sheng長chang增zeng重zhong,黃huang鱔shan會hui逐zhu漸jian瘦shou弱ruo和he發fa病bing死si亡wang。黃huang鱔shan屬shu肉rou食shi性xing魚yu類lei,應ying投tou喂wei動dong物wu性xing飼si料liao或huo全quan價jia配pei合he飼si料liao。
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