卵黄

Show: coated vesicles were covered by a polygonal basketwork.

推测：卵黄蛋白特异地吸附在有被小窝膜的外表面，然后内陷为包被小泡。

The results showed:(1) the cellule morphous and the disposition in chick embryo of PGCs were coincident no matter stained by PAS or HE staining, and HE staining could disclose the morphologic characteristics more clearly, exactly and completely;(2) genesis of blood island could be observed at the boundary of light and dark region of the extraembryonic blastoderm at about 26 hours;(3) both the blood vessel endothelium cells and free cells of the blood island were differentiated from PGCs. The generating of genuine yolk sac was at about 44-48 hours.

结果表明：①用经典的识别原生殖细胞的PAS染色方法与HE染色所观察到的PGC在鸡胚的分布及细胞形态基本一致，而HE染色较PAS法能更有助于清晰、完整、准确地识别PGC的细胞内部结构特征；②在孵化26小时的鸡胚胚外胚盘的明暗交界处可见血岛的发生，血岛发生的时间比真正的卵黄囊产生时间（大约44-48小时）要早很多；③血岛周围的血管内皮细胞与管腔中游离细胞都来自PGC。

It is concluded that the initial ancotomic site of blood island genesis may be is mesoblast of extraembryonic blastoderm rather than the yolk sac; the blood vessel endothelium cells and the blood cells are generated parallel; the PGCs are the common ancestry of angioblast and HSC.

血岛最早发生的解剖位置可能不是卵黄囊而是胚外胚盘中胚层，血管内皮细胞与血细胞平行发生，PGC是成血管－造血干细胞的共同祖先。

The first part is the research of identification of vitellogenin and analysis of its cDNA sequence, and research of composition of yolk protein in Bombyx mandarina Moore.

第一部分是野桑蚕卵黄原蛋白的鉴定与cDNA序列的分析，以及卵黄组成的研究。

This study deals with the development of ovary in a Cichlid, Sarotherodon aurea.

Sarotherodon aurea卵巢的发育在卵黄囊消失时，初级生殖腺已形成。

This experiment indicates that Ig-Guard can effectively enhance the shrimps'activity of enzyme about non-special immunity, and it can also promote shrimps'resistance to WSSV. The third study is the effect of Ig-Guard on impacting the resistance to WSSV of Procambarus clarkia.

WSSV卵黄抗体保护克氏原螯虾防御白斑综合征病毒的研究：在基础饲料中分别添加3个水平(1%、0.5%、0.1%)的Ig-Guard制成3种试验饲料，同时以基础饲料为空白对照。

The feather of the below neck prolong and droop to breast. Remex is black. The general dissection and morphologic observation of four Demoiselle crane. It is shown that the Demoiselle crane has advanced tongue, small intestine, liver and pancreas, and its caecum is so advanced comparatively ,but its craw is wondrous undeveloped.

本文对4只蓑羽鹤的消化系统进行了大体解剖和形态学观察，结果表明蓑羽鹤具有发达的舌、但嗉囊极其不发达，发达的小肠、肝脏和胰脏；有卵黄囊憩室，相对发达的盲肠；泄殖腔的粪道显著增大，其球形直径达32mm。

GALTs were found in the small intestine,Meckel′s diverticulum,caecum and in the terminal rectum.

结果表明，GALT分布在小肠、卵黄囊憩室、盲肠和直肠末端。

Vg could be detected in haemolmph of the water—fed female at 48h after eclosion, too.

用10％的蜂蜜和清水分别饲喂两组成虫(简称"蜜组"和"水组")，以研究成虫期的营养对Vg发生和卵巢发育的影响，结果显示，成虫期营养对于Vg的启动合成并不起关键的决定性作用，两组成虫均可以在羽化的48小时检测到Vg，且水组中的血淋巴水平并不低于蜜组对照，但绝大多数水组个体的卵巢发育停留在卵黄沉积的某一时期，此时在血淋巴中也检测不到，只有约20％的饲水个体卵巢可以发育成熟，出少量卵；用高剂量的ZR515于羽化当日点滴处理饲水个体，可以使所有接受处理的饲水个体的卵巢发育成熟，但是产卵〓依旧低于对照组的，不能恢复正常；这说明成虫期营养对卵巢中全体卵母细胞的成熟是必需的，其作用的产生是通过内分泌系统途径实现的。

Objective: To provide a more effective cryoprotective medium,effect of union of albumin and egg yolk on human sperm cryopreservation was studied.

目的：初步探讨白蛋白与卵黄两种蛋白联合应用于人类精液冷冻保存的效果，以期为人类精液冷冻提供一种更为有效的冷冻保护液。

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。