黃鱔既是名優水產品,又是高級滋補品,其蛋白質含量高達18.8%,binghanyouduozhongrentisuobixudeweishengsu,rouzhixinen,yingyangfengfu。huangshanzaiguoneishenshouxiaofeizhedehuanying,laoshaoxianyi,guoneiwaishichangxuqiulianghenda,jiagekanhao。
發展黃鱔的人工養殖,首先要有好的鱔種。從目前各地養殖的鱔種來源來,黃鱔至少有3-6個地方種群。而這些種群對養殖環境的適應能力、生長速度、養殖效果是不完全一樣的。因而在發展黃鱔人工養殖、選購鱔種時要特別注意。現將幾種常見的黃鱔地方種群的特征及養殖效果介紹如下:
1、深(shen)黃(huang)大(da)斑(ban)鱔(shan)。該(gai)鱔(shan)身(shen)體(ti)細(xi)長(chang),體(ti)圓(yuan),體(ti)形(xing)標(biao)準(zhun),體(ti)表(biao)顏(yan)色(se)深(shen)黃(huang),其(qi)上(shang)伴(ban)有(you)褐(he)黑(hei)色(se)大(da)斑(ban)紋(wen)。生(sheng)產(chan)實(shi)踐(jian)表(biao)明(ming),深(shen)黃(huang)大(da)斑(ban)鱔(shan)適(shi)應(ying)環(huan)境(jing)的(de)能(neng)力(li)較(jiao)強(qiang),生(sheng)產(chan)速(su)度(du)較(jiao)快(kuai),個(ge)體(ti)較(jiao)大(da),鱔(shan)肉(rou)品(pin)質(zhi)較(jiao)佳(jia),養(yang)殖(zhi)效(xiao)果(guo)較(jiao)好(hao)。在(zai)養(yang)殖(zhi)條(tiao)件(jian)下(xia),深(shen)黃(huang)大(da)斑(ban)鱔(shan)的(de)增(zeng)重(zhong)倍(bei)數(shu)可(ke)達(da)5-6倍。可見深黃大斑是目前我國發展黃鱔人工養殖的首選鱔種。
2、qianhuangxibanshan。gaishantixingyejiaobiaozhun,tiseyiqianhuangse,shenshangdeheheisebanwenbijiaoximi,shengminghuolijiaoqiang。danqishengchangsuduburushenhuangdabanshan。zaiyangzhitiaojianxia,qizengzhongbeishukeda3-4倍。同時,該鱔在自然鱔群中為數量最多的一種,來源方便,故該鱔也是發展人工養殖、解決鱔種的重要來源。
3、qinghuiseshan。gaishantixichang,tisechengqinghuise,qishangyeyouximideheheisebanwen。qinghuiseshanshiyinghuanjingdenenglixiangduijiaoruo,shengchangsudujiaoman,getixiangduijiaoxiao。zaiyangzhitiaojianxia,gaishanzengzhongbeishuzhiyou1-2倍,養殖效果不如前兩種鱔好。因而青灰色鱔一般不宜選作人工養殖的鱔種。
youyumuqianhuangshanzhongdedaguimoshengchanjishuhaiweiwanquanguoguan,yangzhideshanzhonglaiyuan,yishikaocongshichangshangxuangou,ershikaoyangzhidanweizijibuzhuo,ermuqianshichangshangdexiaohuangshanyoushitigongshanzhongdezhongyaolaiyuan。yiner,yaoyanghaohuangshan,chulexuangouliangzhongwai,haiyaobahaoshanzhongzhiliangguan。
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