卵囊

The author first reported the social phenomenon and synchronizing development incryptosporidia,the dynamic process of the sporozoites or merozoites aparted from theirparent substances and developed into trophozoites,the culture of C.baileyi in chickenembryo,and the excysting process without both the trypsin and the sodium taurocholatein 37℃ water.The high levels of excystation(60%)oceured at 37℃ water showedthat temprature was very important in cryptosporidia excysting process.

在国内首次观察和描述了薄壁型隐孢子虫卵囊；首次报道隐孢子虫具有群体寄生现象和同步发育特征；首次描述了隐孢子虫的裂殖子或子孢子离开母体和发育为滋养体的动态变化过程；首次应用粪便中纯化的C.baileyi卵囊感染鸡胚成功，并用37℃水脱囊，其脱囊率高达60％，表明温度对隐孢子虫的脱囊具有重要作用，无需胰酶和牛胆酸钠的参与。

In the experiments of artificial infection three of four 12-day-old coccidia-free goslings were died after inoculated with mix oocysts of 5×10~4. Pure oocyst...

通过单种卵囊接种试验获得了5种球虫的纯种卵囊并对它们的一些生物学特征进行了观察，为这些球虫的生活史和致病性研究奠定了基础。

The highest oocysts producing period occurred in April, and the highest oocyst hatching and density of population was in May. And the sexual reproduction process had relation to temperature, food and size of planarians.

卵囊产出的高峰在4月，卵囊孵化与种群密度最高峰在5月，其有性生殖过程与温度、食物、虫体大小密切相关。

The sporulated oocyst holds 2 sporocysts and each sporocyst contains 2 sporozoites,i.e.each oocyst contains a total of 4 sporozoites.

新排出的未孢子化卵囊培养后可观察到孢子化的卵囊，内含2个孢子囊，每个孢子囊内含有2个折光性较强的子孢子。

All chickens were orally challenged with homologous sporulated oocysts at 26 days of age and killed at eight days post challenge. Weight gains, anticoccidial index and oocyst output were determined and compared with those of the control animals.

以可溶性的GST-gam56-2融合蛋白为免疫原，设立高、中、低(1.0 mg、0.5 mg、0.25 mg) 3个剂量，单独或使用弗氏完全佐剂，于5 d、12 d和19 d对雏鸡进行3次免疫， 26 d用5×104个E.maxima孢子化卵囊进行攻虫，8 d后迫杀，对各组的存活率、相对增重率、卵囊减少率、ACI等指标进行统计分析。

The mean value of Ca2 + in the mature oocysts was (137.15 ±7.02) nmol/L but was (18.44± 1.75) nmol/L in melanized oocysts with Ca2+ sedimentation in the wall of oocyst.

约氏疟原虫成熟卵囊的囊内Ca~(2+)为(137.15±7.02)nmol/L，完全黑化卵囊为(18.44±1.75)nmol/L，并在囊壁出现明显的钙沉着。

These observations show that reprogramming is easier in interspecific embryos reconstructed with ES cells than that reconstructed with somatic cells, and that ES cells have the higher ability to direct the reconstructed embryo development normally than fibroblast cells. Oocytes were reconstructed with outbreeding Kunming albino mouse ES cells and enucleated rabbit oocytes, and the effects of the passages of ES cells and 6-DMAP on the development of interspecific reconstructed oocytes were analyzed. The interspecific reconstructed ES-rabbit oocytes were activated either by combined two set electric pulses and 6-DMAP or by two set electr

以上结果显示，6－DMAP能增加胚胎干细胞异种重构卵的卵裂率，对重构卵囊胚的发育率影响不大；高培养代数和低培养代数的胚胎干细胞用于异种核移植不影响异种重构卵的卵裂率和囊胚发育率；用胚胎干细胞作为供核细胞；比体细胞作为供核细胞所构建的异种重构胚更容易进行重编程，并且胚胎于细胞指导异种克隆胚胎正常发育的能力强于体细胞。

Egg capsule showed no clear boundary and contained only one egg. However, the scolex and suckers of R. tetragona were oval in shape, and the neck was long and thin. The ovary was flower-like. Each egg capsule contained 4-12 eggs and many calcareous corpuscles, each of which was surrounded by a membrane.

四角瑞利绦虫链体相对较长，头节及吸盘均呈椭圆形，颈部尤为细长；卵巢呈花朵样分瓣，卵黄腺呈豆状，卵囊周围有明显的囊壁，卵囊内含有4～12个数目不等的虫卵及大量成团的细小折光性颗粒。

Tenella YL attenuated strain were used to infect chickens perorally, then the abundant sporulated oocysts were collected by saturated saline floating measure. The size of the attenuated oocysts was about 19.8~21.2×15.5~16.6μm and the conformation of the strains were integral. 4 The prepatent period of E.

tenella YL减毒株孢子化卵囊经口服感染鸡，用饱和食盐水漂浮法能够收集得到球虫孢子化卵囊，杂质少，形态完整，减毒株卵囊的大小为19.8~21.2×15.5~16.6μm。

Methods All mice in the experimental groups were immunosuppressed by given different concentrations of dexamethasone phosphate added in drinking water throughout the experiment. The recovery and purity of the oocysts obtained using different purification methods was compared. The infectivity of the oocysts obtained from the same origin but different animals and different purification methods in a bovine fallopian tube epithelial cell culture system was studied.

在饮水中添加不同浓度的地塞米松对人工感染小鼠进行免疫抑制，探讨获得最多卵囊数的药物添加量；比较不同纯化方法得到的卵囊回收率和纯度；探讨来自不同动物、不同纯化方法的卵囊在牛输卵管上皮细胞培养系统的感染情况。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。