Work

A case report: Documenting intrauterine single twin death in the European roe deer (Capreolus capreolus)

Year: 2025

Type: article

Abstract: This case report presents a rare occurrence of an intrauterine single twin demise in a captive European roe deer ( Capreolus capreolus ), representing to the best of our knowledge the first documented instance of this phenomenon in a wildlife species. Ultrasound examination of the reproductive organs of a twin-pregnant doe revealed that one twin was smaller and showed an absent heartbeat compared to the other twin. The viable twin displayed normal development and birth, while the dead twin exhibited signs of intrauterine fetal death. This phenomenon of single twin demise in an ungulate species known for its ability to undergo embryonic diapause highlights the importance of understanding reproductive anomalies in wildlife. Such findings enhance our knowledge of reproductive biology and have implications for wildlife conservation and captive breeding practices.

Source: Theriogenology Wild

DOI: 10.1016/j.therwi.2025.100130

Authors: Sara Elsafadi, Sandra Milena Bernal-Ulloa, Reto Giacometti, Frank Göritz, Thomas Hildebrandt, Susanne E. Ulbrich

Institutions: ETH Zurich, Institute of Agricultural Sciences, Leibniz Institute for Zoo and Wildlife Research

Language: English

Topic: Reproductive Physiology in Livestock

Subfield: Agronomy and Crop Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

Open Access status: gold

Estimated APC paid: $1,590

Funder: Eidgenössische Technische Hochschule Zürich