精子的

Analysis of ovine sperm capacitation was assessed by different sperm staining types with CTC.The results showed that the percentage of capacitated sheep sperms in each treatment group ...

结果显示，在240 m in和360 m in时，各实验组中获能精子的百分数均明显高于对照组的(P.05)，说明一定浓度的孕酮有利于绵羊精子的体外获能。

This kind of structure of micropyle has been proved by computer simulation to be favourable for the sperm to agglutinate and enter the micropyle. So, another kind of teleost is found after Misgurnus anguilicaudatus, in which exist unnegligible mechanical dynamic factors besides the chemical one during the sperm entry into the micropyle.

通过电子计算机模拟，验证了卵膜孔的这种结构，为精子的云集和进入精孔管所提供的有利条件，从而，于泥鳅之后又发现了一种真骨鱼，其精子入卵除化学因素外，还存在着不容忽视的机械动力因素。

ABSTRACT We divided spermatogenesis into two parts:The first part is the differentiation of spermatid and the second part is spermiogenesis.This is the second.

摘 要 华支睾吸虫精子的分化可以发现分为两部分，一是精细胞疼痛的发生，二是精子的形成，本文护士报道的为第二部分。

PartⅡFeasibility of vitrifying normospermic samples using droplets without cryoprotectans Objective Discuss the feasibility of droplets to vitrify normospermic samples without cryoprotectants. Methods Normal prepared sperm were frozen by conventional freezing protocol and non-cryoprotectant freezing in droplets respectively. Freezing in droplets means freezing sperm in every 10ul drop. After thawing, compared the two groups'sperm mobilities.

第二部分微滴法无保护剂玻璃化冷冻正常精子的可行性探讨目的探讨在不添加冷冻保护剂的情况下微滴法玻璃化冷冻正常精子的可行性方法收集16份正常精液标本，上游处理后分别进行慢速冷冻和微滴法冷冻，微滴法即用拉细巴氏管将标本形成10ul的液滴，直接投入液氮内冻存，复苏后镜检其活动率。

The sperm treated with trypsin, plasmin, pepsin and succinic acid sodium respectively, only trypsin can dissociate the eupyrene sperm bundles and improve the motility of apyrene sperm synchronously, and olso only the trypsin-treated sperm have the ability of fertilization.

用胰蛋白酶、血纤维蛋白溶酶、胃蛋白酶及琥珀酸钠处理精液，仅胰蛋白酶能够在很好的溶解有核精子束的同时提高无核精子的运动性，也只有胰蛋白酶处理的精液人工授精能够得到受精卵。

Spermatogenesis is the process by which spermatogonial stem cells divide and differentiate to produce sperm.

精子发生是由精原细胞增殖分化形成精子的过程，这一复杂的过程受到多种蛋白质的调节。

While the positive immunofluorescent staining of cenexin could only be seen in one of the centrioles, suggesting that the cenexin protein might be a special component of human matured sperm centrosome.

值得注意的是，利用抗Centrin多克隆抗体对18例男性不育病人精子的免疫荧光观察发现一些精子中Centrin蛋白的分布异常，主要表现为Centrin弥散，未显示正常大小的近端和远端中心粒。提示中心体蛋白异常是否为引致某些男性不育症的因素之一，值得进一步研究。

Comparative analyses of sperm structures among the tailed amphibians indicates that: the feature evolution of sperm in urodeles is related to the differentiation of their fertilization modes

此外，与已有报道的有尾两栖类物种精子的结构特征进行分析比较表明：有尾类精子特征的分化与其受精方式的变化是一致的

This studies' results find out that the percentage of the normal monoploid spermatozoas in seminal fluid is positively correlated to the density grades and energy of the spermatozoas in seminal fluid regular test.

本研究结果表明，精液中正常单倍体精子的百分率与精液常规检测中精子的密度分级以及活力呈明显的正相关。

3The effect of cryopreservation on the acrosomal reaction of spermatozoa was analyzed with chlortetracycline staining.

冻存后大鼠精子细胞膜的完整性未受到破坏；精子的线粒体鞘和顶体受到较明显的破坏。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。