Artificial insemination (AI) can help to avoid inbreeding and genetic degeneration for sustaining genetically healthy populations of endangered species in captivity. Collection of a sufficient quantity of viable sperm is an essential first step in the AI process. In the present study, we examined the effects of frequent electroejaculation on semen characteristics in a Siberian tiger. We collected semen in all 17 trials during 6 breeding seasons (6 years). The mean number of sperm and the percentage of motile sperm were 294.3 ± 250.2 × 10⁶/ejaculate and 82.4 ± 11.4%, respectively. The number of motile sperm tended to increase during frequent electroejaculation in the same breeding season. Semen collection by electroejaculation can be performed effectively up to the fourth sequential ejaculate, which contained the most sperm in the study. In conclusion, frequent collection of sperm by electroejaculation from tigers may be effective for collection of a large number of motile sperm.
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http://dx.doi.org/10.1262/jrd.2013-016 | DOI Listing |
Sex Med
June 2021
Endocrinology Unit, Medical Department, Azienda USL, Maggiore-Bellaria Hospital, Bologna, Italy.
Introduction: Sexual dysfunctions (SDs) have been frequently reported among male partners of infertile couples due to psychogenic, relational and/or organic issues related with the inability to conceive. Likewise, male infertility (MI) could be a consequence of sexual dysfunctions.
Aim: To review the evidence on the prevalence and treatment of male SDs in men of infertile couples and provide clinical recommendations on behalf of the European Society of Sexual Medicine (ESSM).
Anim Reprod Sci
March 2021
Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay.
Electroejaculation (EE) is frequently used to collect semen, but this procedure is both stressful and painful. In seasonal-breeding species the sensitivity to stressors might vary with season of the year when semen collection occurs, therefore, the present study was conducted to compare the responses when imposing the EE procedure, stress response to EE and fresh semen characteristics in goat bucks throughout the year. Semen was collected using EE from goat bucks once in autumn (mid-breeding season), winter (transition to the non-breeding season), spring (non-breeding season), and summer (beginning of the breeding season).
View Article and Find Full Text PDFMicrosc Res Tech
February 2021
Faculty of Veterinary Medicine, Ceara State University, Fortaleza, Brazil.
Reprod Domest Anim
October 2018
A.N.Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia.
The Far-Eastern wildcat (Prionailurus bengalensis euptilurus) is a rare and poorly investigated nondomestic felid species. An attempt of freezing and cryopreserving Far-Eastern wildcat spermatozoa in CaniPlus Freeze (CPF) medium is reported. Sperm was collected by electroejaculation from five adult Far-Eastern wildcat captive-born males.
View Article and Find Full Text PDFSpinal Cord
June 2018
Libra Rehabilitation & Audiology, Eindhoven, The Netherlands.
Study Design: Multicenter cross-sectional study.
Objectives: To determine the prevalence of parenthood in long-term wheelchair-dependent persons who sustained a spinal cord injury (SCI) during their reproductive years. Secondary aims were to (1) explore patient-specific and disease-related factors associated with parenthood after SCI; and (2) quantify fertility aids used by men with SCI.
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