Testicular main ducts and spermatic ducts in some cyprinid fishes I. Morphology, fine structure and histochemistry |
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Authors: | F Lahnsteiner R A Patzner T Weismann † |
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Institution: | Institute of Zoology, University of Salzburg, Hellbrunnerstrasse 34, A-5020 Salzburg;Bundesamtalt für Fischereiwirtschaft, Scharfling 18, A-5310 Mondsee, Austria |
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Abstract: | Alburnus alburnus, Leuciscus cephalus and Vimba vimba efferent duct systems of the male gonads consist of testicular main ducts and spermatic ducts. These have similar histological, fine structural and (enzyme–) histochemical characteristics and function in (1) storage and (2) nutrition of spermatozoa, (3) synthesis of steroid glucuronides, (4) secretion of proteins and enzymes (5) formation of an ionic gradient in the seminal fluid and (6) they have auto– and heterophagocytotic activities. Therefore testicular main ducts and spermatic ducts are important in the formation of the seminal fluid. |
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Keywords: | Alburnus alburnus Leuciscus cephalus Vimba vimba spermatic duct efferent duct system testis |
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