Conducting successful mini-invasive laparotomy assisted artificial insemination in African Lion(Panthera leo).
Authors: Ekrami Behrang, Nava Hamid Ghasemzedeh, Baghbadorani Maziar Kaveh, Nosrati Fereshteh
Journal: BMC veterinary research
Summary
# Editorial Summary Artificial insemination using minimally invasive surgical techniques offers a viable strategy for genetic management of endangered wild felids, though successful application requires careful optimisation of both reproductive physiology and procedural methodology. Ekrami and colleagues collected fresh semen from two male African lions via urethral catheterisation under general anaesthesia, extended samples at a 1:4 dilution using Tris-egg yolk extender, and performed insemination in three females via midline laparotomy 36 hours after hCG-induced ovulation (delivered following initial oestrus synchronisation with 1000 IU equine chorionic gonadotropin). One lioness (33.3%) became pregnant, carrying two viable fetuses to term over 115 days and delivering two live cubs—demonstrating that direct intrauterine placement of approximately 1×10⁶ extended spermatozoa is sufficient for successful conception in this species. Whilst the single pregnancy outcome reflects the inherent challenges of assisted reproduction in wild felids, the successful delivery validates this minimally invasive laparotomic approach as a practical conservation tool for genetic resource management in ex situ populations where genetic diversity and breeding recommendations demand alternatives to natural mating. Equine professionals engaged in exotic animal care or reproduction should recognise that reproductive protocols developed for domestic species require substantial modification for wild felids; the specific extender formulations, hormone dosages, and timing protocols documented here may inform future applications in other endangered Panthera species.
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Practical Takeaways
- •Assisted reproductive technologies using minimally invasive surgical approaches are feasible in felids and can support conservation breeding programs for endangered species
- •Fresh-extended semen with standardized extenders and timed hormone protocols can achieve pregnancy in felids without requiring cryopreservation
- •Success rates remain modest (33% per lioness treated) but represent a valuable reproductive tool where natural breeding is not possible
Key Findings
- •Minimally invasive laparotomy-assisted artificial insemination was successfully performed in African lions using fresh-extended semen
- •One of three lionesses (33.3%) achieved pregnancy with two viable fetuses after AI protocol using eCG and hCG hormonal stimulation
- •Pregnancy proceeded to full term (115 days) resulting in live birth of two healthy cubs, demonstrating technical feasibility of the procedure