精子的

Sex hormone is one of factors that regulate Spermatogenesis.

精子发生是发育生物学的重要内容之一，性激素对精子发生的调节是一种重要的调节方式。

Cloning of spermatogenesis related genes and further functional study are very important to the elucidation of molecular mechanism involving in spermatogenesis and spermiogenesis process.

克隆睾丸精子发生相关基因并研究其功能，对于揭示精子发生过程中减数分裂和变态的分子机制，对于临床男性不育的诊断和治疗以及男性分子节育等均具有重要的意义。

A developmental process termed spermiogenesis takes place to generate motile sperm from round spermatids in mammals.

中文摘要哺乳动物中，圆形的精子细胞必须经过一系列形态变化才能发育成为成熟的、能游动的精子。

Ultimately 7 out of the 7 calves produced by wapiti hinds inseminated with Y-sorted sperm were male (100%) and 8/8 calves or 100% of the calves from hinds inseminated with X-sorted sperm were female.

本研究旨在将精子专用高速的流式细胞分选技术用于梅花鹿、马鹿和山羊，初步建立了梅花鹿、马鹿和山羊分选精液的低剂量授精技术体系和进一步对高纯度分选奶牛精液采用扣除杂交筛选，初步获得牛XY精子间的差异表达基因。

The results indicated that PCR assay can be used in the detection of YRRM1 gene and the method is very useful for clinical diagnosis of azoospermia ...

结果表明，应用该方法检测YRRM1基因片段是切实可行的，对无精子症和严重少精子症患者的病因诊断具有一定的应用价值

Methods Detect the chromosome and serum reproductive hormones of 86 azoospermia cases and 35 normal controls.

检测86例无精子症患者与35例正常对照男性的外周血染色体、血清生殖激素(FSH、LH、T、PRL、T/LH)；分析无精子症患者的生殖内分泌激素水平的变化。

Objective: To study the oxidation damage of active oxygen to human sperm acrosome and ultrastructure,and study the function mechanism about Cuscuta japonica treating male's infertility and asthenoospermia.

中文摘要：目的：观察菟丝子水提物对活性氧所致人精子顶体和超微结构的氧化损伤的保护作用，探讨菟丝子治疗男性不育弱精子症的作用机制。

Sperm of Anguilla japonica remained immotile when the semen was diluted in NaCl,KCl or glucose solution which isotonic or hypotonic to the seminal plasma.The sperm became motile in media containing NaCl,KCl or glucose if the osmolality was higher than that of the seminal plasma.

日本鳗鲡的精子在低于或等于精浆渗透压（≤766.1 kPa）的溶液中不运动，在一定渗透压范围内（1 021.4～3 830.4 kPa），超过精浆渗透压的溶液可激活精子。

Increased motility, zona binding and oolemma fusion capacities are also acquired within the epididymis and are necessary for those cells that finally arrive at the site of fertilization.

精子在附睾中同时提高了运动力、透明带的结合能力以及与卵膜融合的能力，而这些能力是精子到达授精位置所必需的。

The sperm subzonal insemination on mice denudedoocytes. This part of paper use SUZI method to investigate the effects of zona pellucidaon denuded oocytesfertilization.

二、精子注入去除卵丘细胞的小鼠卵母细胞的体外受精利用透明带下精子注射技术，研究透明带对受精的影响。

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。