2) yolk-sac larvae
卵黄囊仔鱼
1.
The study on the embryonic development and feeding of the yolk-sac larvae of Tinca tinca;
丁胚胎发育和卵黄囊仔鱼摄食研究
2.
The changes of 3,5,3 -triiodo-L-thyronine(T_3) levels during the early developmental stages of orange-spotted grouper(Epinephelus coioides) were examined by radioimmunoassay,and the effects of T_3 on grouper yolk-sac larvae were studied.
斜带石斑鱼受精卵中含有相当量的T3,T3随发育而逐渐下降,到仔鱼开口时已经检测不到,提示甲状腺激素可能被胚胎和卵黄囊仔鱼所利用而参与其发育进程。
3) yolk-sac larvae development
卵黄囊仔鱼发育
5) fish eggs and larvae
鱼卵仔鱼
1.
Distribution characteristics of fish eggs and larvae around Yangshan Port in Hangzhou Bay;
洋山深水港水域鱼卵仔鱼分布特征
2.
Characteristics of species composition of fish eggs and larvae in East China Sea in summer;
东海中尺度夏季鱼卵仔鱼种类组成特征
3.
Based on the measured results from three cruises of oceanographic survey carried out in August of 2001 to 2003,in the Changjiang estuary and vicinity waters,the abundance distribution inter-annual features of fish eggs and larvae was studied,and their relationship with hydrologic and biological factors had been analyzed.
根据2001~2003年间,每年5月长江口及邻近水域现场调查资料,分析了鱼卵仔鱼分布的年际变化特征及其与环境因子的关系。
6) fish egg and larva
鱼卵和仔鱼
补充资料：胚胎期卵黄管异常
胚胎期卵黄管异常
卵黄管为胚胎发育早期中肠与卵黄囊之间的一连通管道，在胚胎5～6周时应逐渐闭锁、萎缩，形成纤维化的索带，后渐退化而消失，中肠与脐分离。如卵黄管未闭合或未完全闭合及退化，则可形成各种不同的畸形并出现并发症。常见的卵黄管异常有：①脐肠瘘：卵黄管存留，管腔开放，远端由脐根部向体外开口，近端向肠腔开口；②脐窦：卵黄管远端残存并由脐根向体外开口；③脐茸：卵黄管闭合后，脐孔处残存少许息肉状的肠黏膜组织；④美克尔憩室；卵黄管近端退化不完全在回肠远端形成一盲袋；⑤卵黄管囊肿：卵黄管两端已闭合，中段残存，腔内黏膜分泌物蓄积而成。脐肠瘘、卵黄管囊肿应于生后数周内手术治疗；脐窦可出生半年后切除；脐茸可用硝酸银烧灼或搔刮局部；美克尔憩室一旦出现并发症均应手术切除。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条