Sperm motility, kinematics, morphometry and morphology over two seasons in free-ranging African elephants (Loxodonta africana)

I Luther, L Maree, A Kotze, T Hildebrandt… - Reproduction …, 2020 - CSIRO Publishing
This study aimed to address the lack of information on quantitative semen and sperm
characteristics of free-ranging African elephants. Nineteen ejaculates were collected from 12 …

Semen characteristics of free-ranging African elephants (Loxodonta africana) and Southern white rhinoceros (Ceratotherium simum simum) using Computer-aided …

I Luther - 2016 - etd.uwc.ac.za
The survival of free-ranging (in situ) African elephant and Southern white rhinoceros
populations are currently being challenged on a daily basis in Africa. Reproductive health is …

Electroejaculation, semen characteristics and serum testosterone concentrations of free-ranging African elephants (Loxodonta africana)

JG Howard, M Bush, V De Vos, DE Wildt - Reproduction, 1984 - rep.bioscientifica.com
A regimented electroejaculation protocol (120 electrical stimulations; 10-30 V) was used to
collect semen and characterize ejaculate quality from 9 adult, free-ranging African elephants …

Liquid Semen Storage in Elephants (Elephas maximus and Loxodonta africana): Species Differences and Storage Optimization

WK Kiso, JL Brown, F Siewerdt, DL Schmitt… - Journal of …, 2011 - Wiley Online Library
Artificial insemination plays a key role in the genetic management of elephants in zoos.
Because freshly extended semen is typically used for artificial insemination in elephants, it …

Effect of alternate day collection on semen quality of Asian elephants (Elephas maximus) with poor initial fresh semen quality

P Imrat, S Mahasawangkul, C Thitaram… - Animal reproduction …, 2014 - Elsevier
In captivity, male Asian elephants often yield poor quality semen after transrectal manually
assisted semen collection; however, the reasons for the disappointing semen quality are not …

Sperm rescue in wild African elephants

J Saragusty, MT Prieto, A Courtiol… - Reproduction …, 2016 - CSIRO Publishing
This study investigated ways of improving the usefulness of~ 1700 mL of poor-quality frozen
semen collected from wild African elephant (Loxodonta africana) bulls. Ten semen samples …

[HTML][HTML] Relationship between testosterone and sperm motility in Asian elephants (Elephas maximus): Potential implications during the sexual state of musth

CA LaDue, JL Brown, M Davis, G Kibe, WK Kiso - Theriogenology Wild, 2024 - Elsevier
Male elephants regularly undergo a unique sexual period of musth that is characterized by
elevated testosterone, analogous to the heightened reproductive seasonality of other …

Manual collection and characterization of semen from Asian elephants (Elephas maximus)

DL Schmitt, TB Hildebrandt - Animal Reproduction Science, 1998 - Elsevier
The implications of collecting semen from elephants for use in artificial insemination
programs are profound in the context of propagating captive elephants. Using a manual …

Potential factors affecting semen quality in the Asian elephant (Elephas maximus)

N Thongtip, J Saikhun, S Mahasawangkul… - Reproductive Biology …, 2008 - Springer
Background One of the major obstacles in using artificial insemination to manage genetics
of elephant population in captivity is the large variations in semen quality among ejaculates …

Sperm DNA fragmentation and morphological degeneration in chilled elephant (Elephas maximus and Loxodonta Africana) semen collected by transrectal massage

JK O'Brien, KJ Steinman, GA Montano, CC Love… - …, 2013 - Wiley Online Library
Ejaculates from nine Asian and two African elephants were analysed to gain a further
understanding of mechanisms underlying variable semen quality after transrectal massage …