Ultrastructure of trout spermatozoa: Changes after dilution and deep-freezing

Roland Billard (1)

1 Laboratoire de physiologie des poissons

Trout spermatozoa taken from the testis, vas deferens and ejaculate are described at the ultrastructural level. The morphology of the spermatozoa head, changes in the middle-piece structure, and the relationship between the centrioles and the flagellum were studied under consideration of their role in the reproduction of this species. Morphological changes observed after dilution of the spermatozoa in freshwater or saline and subsequent freezing deserve attention in connection with certain manipulations used in fish farms and laboratories.

Mots clés: spermatozoa; deep-freezing; sperm manipulation; fish; salmonids; trout; rainbow; sea trout

Mots clés: poisson; salmonidae; truite arc en ciel; salmo gairdneri; salmo trutta; spermatozoïde; ultrastructure; reproduction

Domaines: Sciences du Vivant [q-bio]

Roland Billard. Ultrastructure of trout spermatozoa: Changes after dilution and deep-freezing. Cell and Tissue Research, 1983, 228, pp.205-218. ⟨10.1007/BF00204873⟩. ⟨hal-01600629⟩