sperm density

The relation between sperm density and eugenics?

精子密度和优生的关系?

Sperm quality mainly through conventional semen analysis understand sperm quantity, sperm density, and semen of the total number of sperm, sperms agglutinate, sperm motility and live rate, sperm forms, semen liquefaction and other information.

精子质量主要通过常规精液分析了解精液量、精子密度、及精液中精子的总数量、精子凝集、精子活力与活率、精了形态、精液液化等信息。

2) The seminal plasma levels of Fe and Ca were higher, the seminal plasma levels of Cu were lower in yeld men with aspermia or oligozoospermia than those with normal sperm density ( P < 0 01).

无精子及少精子症组精浆铁、钙含量高于精子密度正常组（P<001），铜含量低于精子密度正常组（P<001），锌、镁含量无差异（P<005）。

The sperm density of mature male was 2 × 10~ ( 11)/ mL. The ratio of female to male was 2 ∶ 1 during the artificial fertilization and the fertilized rate was 75%-92%.

成熟雄性精子数量为200亿/mL，人工繁殖时雌雄比为2∶1，受精率75%～92%。

For severe oligozoospermia, the recovery rate of motile sperm with density gradient was higher than that of improved swim-up ( P < ( 0.01)).

重度少精子症密度梯度离心法回吸收精子优于改良上游法（P<0.01）。

The seminal plasma alpha-glycosidase activity in obstructive aspermia group was significantly lower than those in infertility with normal sperm density group, and normal control group ( P < 0.05);

按精子密度分组，梗阻性无精子症组精浆α糖苷酶活性明显低于其他组（P<0.05）；

What's sperm density for fertility?

精子密度在生育上代表 什么 ?

Methods: The selection techniques of swim-up, Percoll density gradient centrifugation and doule-flection tube were used to observe sperm chromosome abnormality rate, sex chromosomal ratio and the percentage of spermatozoa with relatively intact head ultrastructure.

方法：分别应用上游法、Percoll密度梯度离心法及双曲管优选法处理精液，观察优选前后精子染色体畸变率、精子性染色体比例及超微结构相对正常的精子百分率。

Successfully collected the argali semen, sperm motility and density were better, indicating that stimulation has no effect on semen quality of argali, electro-ejaculation is suitable method for argali semen collection. 2.

成功采集到了盘羊精液，精子活力、密度均较好，说明电刺激对盘羊的精液品质没有影响，是适合盘羊的一种采精方法。