2) yolk-sac larvae development
卵黄囊仔鱼发育
4) early developmental stages
早期发育阶段
1.
Cobia (Rachycentron canadum) feeding and its influencing factors at early developmental stages;
军曹鱼(Rachycentron canadum)早期发育阶段的摄食及其影响因子
2.
Toxicity of Cu~(2+) to fish during early developmental stages:a review
重金属离子铜对鱼类早期发育阶段的毒性
5) Development stage
发育阶段
1.
Stranler’s geomorphologic erosion circulation theory, the present paper carries a quantitative study on the development stage of debris flow ravines in Daqu basin of Sichuan.
运用Stanler面积-高程分析方法,以四川达曲河流域为对象,对泥石流沟发育阶段进行了定量化研究。
2.
The parameter of growing degree days in different development stages was quantified and different development stages were predicted systematically.
根据发育阶段生长度日恒定的原理和温室栽培试验,将温室甜瓜生长发育阶段划分为播种期、幼苗期、伸蔓期、开花坐果期、果实生长盛期、果实成熟期,建立了温室甜瓜发育的动态模拟模型,并确定了发育阶段生长度日的参数,系统地预测甜瓜生长发育阶段。
6) developmental stage
发育阶段
1.
The responses of antioxidant defense system at different developmental stages of spring wheat to gradual drought stress in field;
春小麦不同发育阶段抗氧化系统对田间缓慢干旱的响应
2.
Studies on optimum pH values of artificial diet at different developmental stages of silkworm ( Bombyx mori );
家蚕(Bombyx mori)不同发育阶段饲料适宜pH值的研究
3.
Correlation between the nutritive composition and developmental stage of Teleoqzyllus derelictus;
黄褐油葫芦虫体营养成分与发育阶段的相关性研究
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