卵黄

Objective To obtain IgY and study on the expression of it in egg yolk.

目的获得鸡卵黄抗体，并研究该抗体在鸡的黄液中表达的进程。

The separation and purification of Immunoglobulin of egg yolk were studied.

对鸡卵黄免疫球蛋白的分离纯化进行了研究。

Only 41 days and the embryo sac did not see, not the original heart tube is a normal pulse, the next time will be good.

才41天没有见到卵黄囊及胚芽，未见原始心管搏动是正常的，再过段时间一定会好的。

The neural embryo development and yolk sac larval morphological development of E. septemfasciatus was investigated.

本实验对七带石斑鱼胚体、卵黄囊期仔鱼形态发育的过程进行观察，研究其发育特征。

In many species the extent of embryonic growth is limited by the availability of food.

在大多数物种中，胚的生长是受卵黄的量限制的。

This paper presented particularly the colony-counting method of Bacillus cereus in gold deposit of Shewu Mountain in Jiayu county, Hubei province. Many factors affecting counting results, such as colony morphology and positive bacteria category on mannitol-yelk-polymoxin agar medium, centrifugation and dilution in sample dealing process were analysed in detail, and an improved enumerative method was acquired.

本文详细叙述了湖北省嘉鱼县蛇屋山金矿区土壤中蜡样芽孢杆菌的菌落计数方法，对甘露醇—卵黄—多粘菌素琼脂培养基上菌落的特征和MYP培养基上反应呈阳性的细菌种类、土样处理过程、计数方法等影响土壤中蜡样芽孢杆菌的菌落计数的因素进行了详细的分析，从方法学方面做了改进。

Epiboly Movement of the embryonic cell mass over the surface of the yolk?; the germ ring marks the boundary of the advancing sheet of cells.

外包胚胎细胞团移动通过卵黄的表面上；胚胎环细胞正好标志出细胞前进的边界。

Blocking cyp11a1 expression results in impaired epiboly, convergence, and extension movement and disrupting hsd3b leads to expanded dorsal tissues in zebrafish embryos, yet little is known about the function of P5 and P4 in early developmental stages.

在之前的研究指出降低cyp11a1表现会造成细胞外包卵黄、聚合移动以及伸展移动的速度下降，而抑制hsd3b 表现则会使背部组织增大。

A nonlinear regression is adopted to analyze the changes of plasma vitellogenin concentration in crucian carp via the environmental pollutant exposure concentration, and the concentration-response relationship is determined for the single chemical of estradiol (E2), ethynylestradiol (EE2), bisphenol A, 4-tert-octylphenol, and that of the mixed compounds at equipotent concentrations, the mixture being tested using a fixed-ratio design.

通过对鲫鱼血浆卵黄蛋白原含量的相对变化和暴露浓度的非线性回归分析得出17α-乙炔基雌二醇(EE2)、17β-雌二醇(E2)、双酚A、辛基苯酚及其等毒性固定浓度比例混合物产生雌激素效应的剂量－反应关系；应用相加作用数学模型根据单个化合物的数据预测混合物效应。

The embryonic vessels failed to invade into the labyrinthine layer of placenta, which impaired the embryonic-maternal vascular connection. These defects could not be rescued by wild-type tetraploid blastocysts, excluding the possibility that they were due to the extraembryonic tissues.

组织免疫组化分析结果显示：毛细血管腔异常扩张，排列紊乱，不能形成大血管及细致有序的血管网络；胚外中胚层来源的卵黄囊脏层扁平上皮细胞形态变圆，与内皮细胞连接受损；胚胎血管不能侵入胎盘迷路层，胚体与母体血管连接受损。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。