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Penetration of zona-free hamster, bovine and equine oocytes by stallion and bull spermatozoa pretreated with equine follicular fluid, dilauroylphosphatidylcholine or calcium ionophore A23187
(Elsevier B.V., 2001-09-15)
Experiments evaluated the ability of follicular fluid (FF), dilauroylphosphatidylcholine (PC12) and the calcium ionophore A23187 (A23187) to induce capacitation in stallion and bull spermatozoa, determined by the ability ...
Significance of large nuclear vacuoles in human spermatozoa: implications for ICSI
(Reproductive Healthcare Ltd, 2008-07-01)
The aim of this study was to determine the extent of DNA fragmentation and the presence of denatured single-stranded or normal double-stranded DNA in spermatozoa with large nuclear vacuoles (LNV) selected by high magnification. ...
Microtubular defect in equine spermatozoa associated with infertility
(Equine Veterinary Journal Ltd, 1997-11-01)
Cryopreservation effects on domestic cat epididymal versus electroejaculated spermatozoa
(Elsevier B.V., 2006-10-01)
Frozen-thawed epididymal spermatozoa have already been successfully used in artificial insemination in the domestic cat, proving to be a valuable resource for the reproduction of felid species, which are threatened with ...
Spermatozoa ultrastructure in Sciaenidae and Polynemidae (Teleostei : Perciformes) with some consideration on Percoidei spermatozoa ultrastructure
(Churchill Livingstone, 2005-06-01)
Spermatozoa ultrastructure was studied in five marines (Paralonchurus brasiliensis, Larimus breviceps, Cynoscion striatus, Micropogonias furnieri, Menticirrhus americanus, Umbrina coroides, Stellifer rastrifer), and one ...
Search and identification of spermatozoa and spermatids in the ejaculate of non-obstructive azoospermic patients
(Sociedade Brasileira de Urologia, 2005-02-01)
OBJECTIVE: To search and to identify spermatozoa and spermatids, present in the ejaculate of non-obstructive azoospermic patients. MATERIALS AND METHODS: 27 patients, aged between 18 and 48 years, with initial diagnosis ...
Artificial oocyte activation using calcium ionophore in ICSI cycles with spermatozoa from different sources
(Reproductive Healthcare Ltd, 2009-01-01)
The present study evaluated the effect of artificial oocyte activation (AOA) with calcium ionophore A23187 oil intracytoplasmic sperm injection (ICSI) cycles using spermatozoa from different sources. The 314 cycles evaluated ...
Spermiogenesis and spermatozoa ultrastructure in the Serrasalminae (Ostariophysi: Characiformes) with further evidence on the relationships of the piranhas and pacus
(Sociedade Brasileira de Ictiologia, 2009-09-01)
A ultraestrutura dos espermatozoides e espermiogênese foram estudadas nas espécies Piaractus mesopotamicus, Mylossoma duriventre, Serrasalmus maculatus e Metynnis mola de Serrasalminae, sendo dois padrões distintos ...