Understanding the molecular basis for sperm function: the sperm connecting piece and sperm motility

精子是一种运动细胞，它将父亲的遗传信息传递给卵母细胞。为了发挥作用，精子形态必须正常，精子必须获得活力。通常，动物（和人类）男性不育与精子形态和功能异常有关。一种表型，通常观察到的无功能精子，是精子头部脱离所造成的“脆弱”精子连接件。对于养牛业来说，高公牛繁殖力是重要的，并且具有经济后果。

Spermatozoa are motile cells that transfer the father's genetic information to the oocyte. To function, sperm morphology must be normal, and sperm must acquire motility. Often, animal (and human) male infertility is related to abnormal sperm morphology and function. One phenotype, commonly observed for non-functional sperm, is sperm head detachment caused by a "fragile" sperm connecting piece. For cattle industry, high bull fertility is important and of economic consequence.