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黄鳝在暂养运输中,发生大批死亡主要原因有以下几点: 1、“发烧”缺氧,使黄鳝窒息。所谓“发烧”,是指盛装黄鳝的容器内水温显著升高,如果不及时换水,水质进一步恶化直至呈暗绿色,并有强烈的腥臭味,这标志着水中严重缺氧,大批黄鳝会因窒息而死。但是这时体质比较健壮的黄鳝,往往能挤到表层,奋力竖身昂头,直接呼吸空气,因而不会发生死亡。缺乏经验的人常被这种表层假象所蒙蔽,实际上表层以下的黄鳝已经相互纠缠成团,急待抢救或已经大量死亡。产生“发烧”的原因,是因为黄鳝体表富含黏液,容
Eel transport in transit, there are a large number of deaths mainly due to the following: 1, “fever” hypoxia, eel suffocation. The so-called “fever” refers to the container containing eel significantly increased water temperature, if not in time to change the water quality deteriorated until it was dark green, and a strong stench, which marks a serious hypoxia in water, a large number of eel will be due to Suffocate and die. However, at this time the more robust body eel, often squeezed to the surface, struggling to stand tall, breathing directly to the air, so there will be no death. Lack of experience is often blinded by this surface illusion. In fact, the eels below the surface have become entangled with each other and are in urgent need of rescue or have been massively killed. Have a “fever” because the surface is rich in mule, eel