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International Symposium on
Stallion Reproduction (ISSR)

Online Mini-Symposium - 3-4 March 2022

With the next In-presence-ISSR in Cordoba, Spain, moved to 2024, the Board of ISSR is happy to announce an interim online ISSR Symposium. There is an increasing need to present and discuss our research in an international context. This is particularly true for young scientists who due to COVID restrictions have been completely blocked from the international community of stallion and equine reproduction.   

A two-day mini symposium will be held on 3 and 4 March 2022 via Zoom. Each day´s session will start with an invited “plenary” lecture followed by short oral presentations from young researchers.

                                                             Christine Aurich (on behalf of the ISSR Committee)

ISSR 2022 Online – Presentations and Time Schedule

3. March 2022

Plenary lecture - 19:00-20:00 GMT
Practical implications of stallion sperm metabolism in the laboratory and the clinic
   Zamira Gibb, The University of Newcastle, NSW, Australia

Short communications - 20:00-21:00 GMT
Effect of cryopreservation on stallion sperm membrane integrity and retention of PLCZ1
   Raul A. Gonzalez-Castro and Elaine M. Carnevale
   Equine Reproduction Laboratory, Department of Biomedical Sciences,
   Colorado State University, Fort Collins, CO, USA

64,XY, SRY-positive genotype in a phenotypic mare with monorchidism
   Brittany Middlebrooks, Patrick McCue, Brad Nelson, Emily May, Charlie Barton,
   Christina Divine, Jerry Bouma, Alan Conley
   Department of Clinical Sciences, Colorado State University, Fort Collins, CO
   Department of Biomedical Sciences, Colorado State University, Fort Collins, CO
   Department of Population Health and Reproduction, University of California, Davis, CA

Endocrine changes in Shetland stallions after GnRH vaccination and re-stimulation with GnRH agonist treatment
Camille Gautier, Martim Kaps, Jörg Aurich and Christine Aurich
   Vetmeduni Vienna, Austria

4. March 2022

Plenary lecture - 19:00-20:00 GMT
Current techniques for equine sperm vitrification
Manuel Hidalgo, University of Cordoba, Spain

Short communications - 20:00-21:00 GMT
Negative surface charges of equine sperm are associated with quality parameters
   Morgan F. Orsolini, Margo H. Verstraete, Machteld van Heule, Daniela Orellana,
   Alyssa Ortega, Stuart A. Meyers, Pouya Dini
   Department of Population Health and Reproduction and Anatomy, Physiology, and Cell
   Biology, School of Veterinary Medicine, University of California, Davis, CA
   Faculty of Veterinary Medicine, University of Ghent, Merelbeke, Belgium 

Light breed stallions kept under low latitude tropical savanna climate do not display seasonal variations in semen quality
Mariane Leão Freitas; Thiago Cardoso Braga; Ivo Pivato; João Henrique Moreira Viana
   Margot Alves Nunes Dode; Rodrigo Arruda de Oliveira
   ReproUnB, Faculty of Veterinary Medicine, University of Brasília, Brazil
   EMBRAPA, Brasília, Brazil

Evaluation of Lactose EDTA and MFR5 freezing extenders containing 5 % glycerol versus the same extenders containing a combination of 2 % glycerol plus 3 % methylformamide on post-thaw motility of stallion spermatozoa
Shelby Granier, James K. Graham, Paula D. Moffett, Patrick M. McCue
   College of Veterinary Medicine and Biomedical Sciences
   Colorado State University, Fort Collins, CO 80521 USA

Please note: 19:00 GMT is 20:00 in Vienna and Cordoba, 16:00 in Brazilia, 12:00 in Ft. Collins/CO, 11:00 in Davis/CA and 6:00 on the next day in Newcastle/NSW.



The Mini-Symposium will be held via Zoom. There is no registration fee but participants need to register so that they can receive the Zoom link.

Please register for the Zoom webinar via the following link:


For information you can always contact Jörg Aurich via e-mail joerg.aurich@vetmeduni.ac.at.

This homepage will be updated regularly.