精子的

And while finding out earlier may give you more time to get into the groove and reimagine your baby, it also brings up the issue of selective abortion, in addition to sex-selection techniques such as in-vitro fertilization methods and sperm sorting.

他们的研究结果最近发表在《妇产科学》期刊上。尽管更早得知胎儿的性别可能会让你有更多的时间进入状态，重新想像自己的孩子什么样，但也会带来选择性堕胎的问题，催生体外受精和精子选择等性别选择技术。

Following treatment, 17 of the 34 patients with hyperthermia, all of whom had genital tract inflammation, had normal scrotal skin temperature; in 15 of these 17 patients, sperm count was increased.

在随后的实验中，所有有生殖系统炎症的34位病人中的17名阴囊温度过高的病人的阴囊皮肤温度降到正常；其中15人的精子数量开始增加。

Farther, the sperm DNA of wild male was extracted from copulated wild female thelycum in three families of the ten.

从其中3个家系的雌性亲虾纳精囊中提取了雄虾精子DNA，微卫星标记显示各家系的子代个体均有一个等位基因与雄性亲虾的基因型相符，且符合孟德尔遗传规律，这为野生中国明对虾雌虾在繁殖季节一对一的繁殖行为提供了遗传学的证据。

We biopsied 1-2 single blastomere from 6-8 cell cleavage stage intracytoplasmic sperm injection embryo, and using nested PCR amplified the high frequently mutation region G380R of FGFR3 gene of the single blastomere. The products of PCR were digested by restriction enzyme Bfm Ⅰ, then the digested products were detected by 10% PAGE to see whether the embryo inherted the mutation of the patient and to screen out normal embryo transfer.

活检经胞质内单精子注射(intracytoplasmic sperm injection，ICSI)授精的胚胎发育至6～8细胞期的1～2个单卵裂球，采用巢式PCR扩增单卵裂球的FGFR3基因的高发突变位点G380R区域，用限制性内切酶BfmⅠ消化巢式PCR的内扩增产物，再经10%聚丙烯酰胺凝胶电泳检测有无遗传患者的该种突变，从而筛选出正常胚胎移植。

The explanation usually advanced for this is that macho men will provide the sperm needed to make sexy sons, but the more feminised phenotype makes a better carer and provider—in other words an ideal husband.

对此类现象的解释多为传统的壮男们可以提供生产优秀后代的精子，但是女性特征的表型带来一位更好的照料者和供给者——换句话说一位理想的丈夫。

But 18 per cent of the 51 men whose mothers had eaten the most beef while pregnant had sperm counts of 20 million per millilitre or less, which is classed by the World Health Organization as "sub-fertile".

其中的18％的男性（51名）的精子数小于等于2千万/ml，属于世界卫生组织规定的低生育能力人群，他们的母亲在怀孕期间食用了最多的牛肉。

This indicates that under the condition of physiological climax, men and women can produce good-quality sperms and ovums respectively. It is the objective existence that cannot be changed by people's thoughts.

这说明人类在生理高潮期的条件下，男性能够产生优质的精子和女性能够产生优质的卵子，这是不以人的意志为转移的客观存在。

Epidemiologist Luc Smits of Maastricht University, the Netherlands, who led the study, believes the results support the idea that sperm bearing the male Y chromosome swim faster than sperm with the female X chromosome, and can travel through viscous cervical mucus more easily.

荷兰Maastricht大学的流行病学家Luc Smits领导了这项研究，他相信这项结果支持携带Y染色体的精子游的速度要快于携带X染色体的，且更容易穿过粘性子宫颈粘液的想法。

It is necessary to develop a protein-free media for oocytes maturation that can prevent zona hardening. In this study, immature macaque oocytes were cultured in modified CMRL media alone or CMRL with either bovine calf serum or PVA for 24 hours. Also, in vivo matured oocytes were cultured in CMRL supplemented with PVA or serum for approximately 6 hours.

我们在本研究中，将非成熟的猕猴卵母细胞分别在改良的CMRL，或在含有胎牛血清或聚乙烯醇的改良CMRL培养基中培养24小时；同时，将体内成熟的卵母细胞分别在含有PVA或者胎牛血清的CMRL中培养6小时，然后进行体外授精，比较各组间精子穿透率或受精，以及胚胎发育情况。

Neutering, of course, removes the ability of the male to produce sperm making successful mating impossible.

绝育的，当然，删除的能力的男性产生精子，使成功的交配是不可能的。

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。