nauplius stage meaning in English

无节幼体期

The first stage is characterized by the body becoming bigger and more elongated than in the nauplius stage ; the head and thorax , however , remain unchanged . during this stage direct heat and light from the sun is detrimental to the development of the larvae . under direct sunlight they become deformed and are unable to absorb nutrients
第一期，其形态特徵为体长比无节幼虫期大而伸长，头胸部与形态和前期同，此期最怕太阳直射，在太阳直射下，饲育的水蚤幼虫眼幼虫，身体弯曲成为畸形，不摄食。
In these transition periods , the digestion system is not well developed yet and is very sensitive to any change in their digestion systems . this stress - related indigestion can eventually lead to death . the stress is easily induced in the above mentioned two stages because zoea begins to take external food since the yolk in its body has been consumed during the nauplius stage
，是由多种酵素，黄莲黄柏抽出物的综合体，能迅速安全的分解残饵，解决污泥产生，免除亚硝酸及阿摩尼亚所造成的生理紧迫，更因为神奇的酵素作用，能帮助虾苗肠道的正常机能，避免虾苗初饲食物或改变饲料的生理紧迫消化不良而导致死亡。