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Non-surgical desexing

Non-surgical options for canine population control – What’s available and what’s on the horizon?

Cyril Perumamthadathil, School of Animal and Veterinary Sciences, Charles Sturt University

Cyril PerumamthadathillApproximately 75% of the world’s dog population is stray or feral. These animals can be responsible for nuisance behaviour, predation and ecological threats, in addition to diseases affecting animal production and human health. Currently, euthanasia or fertility control are options commonly used to mitigate feral animal problems. Surgical sterilisation is considered the gold standard for contraception, but is not without its risks, expense and logistical limitations.

Cyril will focus on the latest options available for non-surgical contraception in dogs which include hormonal contraceptives (e.g. Gonadotrophin releasing hormone (GnRH) agonists), immunocontraceptives (e.g. vaccines against GnRH, zona pellucida proteins) and male chemical sterilants (zinc gluconate, calcium chloride).

Cyril advocates for a single dose treatment that will address most of the criteria for an ideal contraceptive including: social acceptance, animal welfare, efficacy, legal compliance, feasibility, and sustainability, will soon be available.

Cyril Perumamthadathil is a lecturer in Veterinary Reproduction at the Charles Sturt University. After graduating with a BVSc from the Kerala Agricultural University (India), Cyril practiced as a veterinarian for 10 years. Later he pursued a doctoral residency program in Theriogenology (DVSc) at the Ontario Veterinary College, University of Guelph, Canada. Before moving to Australia, he worked as a Theriogenologist at the Atlantic Veterinary College, Canada for a short term. Cyril became a Diplomate of the American College of Theriogenologists in 2012. His main interests include management of reproduction in equine, bovine and companion animals, infertility, obstetrics and embryo transfer. He also has special interest in transcervical insemination (TCI), and contraceptive techniques in dogs.

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