Maretta M
Vet Med (Praha). 1979 Nov;24(11):679-89.
The structure of double and multiple flagella of the spermatozoa of a drake was investigated. In spermatozoa with this defect one or two implantation pits were observed in the head of the spermatozoon with one or two proximal centrioles situated in the extended base of the nucleus. The structure of the proximal centrioles was frequently disturbed. Distal centrioles were placed separately without any marked figural or structural disturbance. The mitochondrial sheath was formed around both or more flagella, and between the flagella only one line of mitochondria was usually found. The ring showed defects in shape and changes in the deposition. An amorphous sheath was formed around each flagellum separately without any marked defects. In single cases insignificant changes were recorded in the arrangement of fibrils of the axial bundle.
对公鸭精子双鞭毛和多鞭毛的结构进行了研究。在有这种缺陷的精子中，在精子头部观察到一个或两个植入窝，在细胞核延伸基部有一个或两个近端中心粒。近端中心粒的结构经常受到干扰。远端中心粒单独放置，没有任何明显的形态或结构紊乱。线粒体鞘围绕着两个或更多鞭毛形成，在鞭毛之间通常只发现一行线粒体。环显示出形状缺陷和沉积变化。在每个鞭毛周围分别形成一个无定形鞘，没有任何明显缺陷。在个别情况下，记录到轴束纤维排列有微小变化。
