Sex identification in juvenile and adult Indonesian blue-tongued skinks (Tiliqua gigas) through cystoscopy and accuracy of contrast radiography.

Autor: Vetere A; 1Exotic Animal Service, Clinica Veterinaria Modena Sud, Spilamberto, Italy., Di Girolamo N; 2Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY., Porter I; 2Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY., Tollefson C; 2Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY., Di Ianni F; 3Department of Veterinary Science, University of Parma, Parma, Italy., Nardini G; 1Exotic Animal Service, Clinica Veterinaria Modena Sud, Spilamberto, Italy.
Jazyk: angličtina
Zdroj: Journal of the American Veterinary Medical Association [J Am Vet Med Assoc] 2023 Sep 06; Vol. 261 (12), pp. 1-8. Date of Electronic Publication: 2023 Sep 06 (Print Publication: 2023).
DOI: 10.2460/javma.23.04.0200
Abstrakt: Objective: To describe a nonsurgical endoscopic technique for sex identification in Indonesian blue-tongued skinks (Tiliqua gigas) and to assess accuracy of contrast radiography of the hemipenile/hemiclitoral pouches.
Animals: 42 clinically healthy Indonesian blue-tongued skinks between 6 months and 3 years old and weighing between 22 and 550 g.
Methods: Cystoscopy was performed under general anesthesia. Gonads were visualized through the transparency of the urinary bladder, and their gross morphology was described. Contrast was applied in the tail pouches before obtaining full-body radiographs. Two radiologists, blinded to the sex of the skink, evaluated the radiographs.
Results: Cystoscopy was achieved in all 42 skinks. Visualization of the gonads through the urinary bladder was possible in 41 (98%; 95% CI, 87% to 99%) of the skinks, with 18 of them identified as males and 23 identified as females. Median procedure time was 60 seconds (range, 25 to 180 seconds) and was not associated with procedure order (-0.69; 95% CI, -1.83 to 0.45) or with the weight (0.02 g; 95% CI, -0.07 to 1.0) or the identified sex (11.7; 95% CI, -15.07 to 38.45) of the skink. Radiographs had a sensitivity of 69.6% (95% CI, 47.1% to 86.8%) and a specificity of 75.0% (47.6% to 92.7%) to identify female skinks. All the skinks recovered uneventfully.
Clinical Relevance: Cystoscopic sex identification is feasible in Indonesian blue-tongued skinks of various age and size. Considering the difficulty in identifying their sex otherwise, this technique could provide a significant improvement in the veterinary care of this species. In this population, contrast radiographs showed limited accuracy for sex identification.
Databáze: MEDLINE