Seminal fluid promotes in vitro sperm-oviduct binding in the domestic cat (Felis catus)

Theriogenology
F HenryK Müller

Abstract

From many endangered or threatened species which are expected to profit from assisted reproduction techniques, mainly epididymal sperm of dead or freshly castrated males are available. These sperm had contact to epididymal secretion products but not to seminal fluid components. Notably, products of accessory sex glands have been shown in domestic animals to condition sperm for fertilization, in particular by mediating sperm-oviduct interaction. We report for the first time that motile epididymal sperm from domestic cats are able to bind to fresh oviduct epithelial cell explants from preovulatory females (median [min, max] of 10 [8, 16] and 10 [8, 17] sperm per 0.01 mm(2) explant surface from both isthmic and ampullar regions, respectively). More sperm attach to the explants when epididymal sperm were preincubated for 30 minutes with seminal fluid separated from electroejaculates of mature tomcats (median [min, max] of 17 [13, 25] and 16 [12, 21] sperm per 0.01 mm(2) explant surface from isthmus and ampulla, respectively). The proportion of bound sperm increased from a median of 54% to 62% by seminal fluid treatment. Sperm-oviduct binding could be facilitated by the decelerated sperm motion which was observed in seminal fluid-tr...Continue Reading

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Citations

Oct 26, 2016·Molecular Reproduction and Development·Alexis Parada-BustamantePedro A Orihuela
Jul 25, 2018·Andrologia·Carolina CheuquemánJennie Risopatrón
Dec 27, 2019·Reproduction in Domestic Animals = Zuchthygiene·Karin MüllerMohammad Bashawat
Nov 20, 2016·Reproduction in Domestic Animals = Zuchthygiene·Dbc LimaLdm Silva
Jun 1, 2021·Biology of Reproduction·Coline MahéMarie Saint-Dizier
Jul 28, 2020·Molecular and Cellular Endocrinology·Marie Saint-DizierXavier Druart

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