Research on reproduction is essential for captive breeding of endangered carnivore species
Open accessAbstract
Assisted reproductive technology (ART) has great potential for conservation, but its successful application in captive breeding programmes of endangered species is often compromised by limited background on species' biology. Although carnivore species benefit from knowledge obtained in domesticated species (dogs, cats and ferrets), the focus of research is different. In pet animals, research in reproduction has mainly been focused on ovarian function and contraception, although substantial progress has also been made in the field of in vitro embryo production, transgenic embryos and cloning to aid relevant medical models. In endangered species, however, research should focus on characterizing reproductive traits (cyclicity and seasonality) to unravel species-specific endocrine principles of reproduction physiology. Based on this knowledge, it is crucial to enhance the ability to manipulate female reproductive cycles, especially those of embryo recipients. Furthermore, research conducted on molecular and cellular mechanisms of gamete and embryo development, as well as on cryopreservation protocols of gametes and embryos, is required for successful implementation of advanced ART to wild carnivores. This review will provide a summary on the state of the art with focus on ART contributing to conservation breeding of endangered carnivores.
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Animals managed ex situ for breeding programs are often subject to regular veterinary procedures to monitor reproductive health and collect data for research on reproductive physiology.
“Animals who are managed ex situ for breeding programs are often subject to regular veterinary procedures to monitor reproductive health and collect valuable data for research on reproductive physiology.”
From The Concept of Agency, Animal Wellbeing, and the Practical Realities of Ex Situ Breeding Programs in Zoos and Aquariums (2024) · cites this paper as [54]
The Summary (page not available) discusses technologies for assessing fertility and monitoring reproductive status in conservation breeding, and section 3 describes pregnancy monitoring and sample collection in Iberian lynx. The paper does not establish that ex situ animals are often subjected to regular veterinary procedures, or that such procedures routinely collect research data. (LLM, conf=0.84)
Experimental — accuracy not yet measuredUltrasound scans and sample collection are typical procedures for animals in breeding programs.
“Ultrasound scans and sample collection are typical procedures [32,54].”
From The Concept of Agency, Animal Wellbeing, and the Practical Realities of Ex Situ Breeding Programs in Zoos and Aquariums (2024) · cites this paper as [54]
Section 3 (page unavailable) describes collecting blood, urine and faecal samples to monitor pregnancy in a conservation breeding programme, supporting the sample-collection part. The only ultrasound mention found is in a reference title; the paper does not establish that ultrasound scans are typical procedures in breeding programmes. (LLM, conf=0.85)
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- Authors
- Jewgenow, K., Braun, B., Dehnhard, M., Zahmel, J., & Goeritz, F.
- Affiliations
- Leibniz Institute for Zoo and Wildlife Research (DE)
- Leibniz‐Institute for Zoo and Wildlife Research Berlin Germany
- Corresponding author
- Jewgenow, K
- ORCID
- Venue
- Reproduction in Domestic Animals
- Publisher
- Wiley
- Published
- 2016-11-15
- Volume
- 52
- Issue
- S2
- Pages
- 18-23
- ISSN
- 0044-5371 (ISSN-L)
- 0936-6768
- 1439-0531
- OpenAlex
- W2554167521
- Cited by
- 36
- References
- 52
- Citations by year
- 2026: 2 · 2025: 4 · 2024: 5 · 2023: 3 · 2022: 1 · 2021: 5 · 2020: 4 · 2019: 8 · 2018: 2 · 2017: 2
- FWCI
- 0.60
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Reproduction in Domestic Animals (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Bundesministerium für Bildung und Forschung (BMBF 033L046)
- Deutsche Forschungsgemeinschaft (DFG Je 163/11‐1)
- Deutscher Akademischer Austauschdienst
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Biology and Fertility
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Animal Genetics and Reproduction
- Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Reproductive Physiology in Livestock
- Keywords
- assisted reproduction, captive breeding, endangered carnivores, wildlife conservation, reproductive physiology, ovarian function, reproductive cycle, seasonal variation, embryo recipients, gamete development, embryonic development, in vitro embryo production, cloning, transgenic embryos, contraception
- MeSH terms
- Animals, Breeding, Carnivora, Female, Reproduction, Research, Cryopreservation, Reproductive Techniques, Assisted, Endangered Species
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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