Evidence map›Paper›PMID 37877686›Full record

ArticleReproduction (Cambridge, England)2023

In vitro fertilization program in white rhinoceros.

Thomas Bernd Hildebrandt, Susanne Holtze, Silvia Colleoni, Robert Hermes, Jan Stejskal, Isaac Lekolool, David Ndeereh, Patrick Omondi, Linus Kariuki, Domnic Mijele and 10 more

Open access · hybridAbstract read
In one paragraph

Article in Reproduction (Cambridge, England), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
9.3field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Review
  3. In Vitro Hatching ofInternational journal of molecular sciences · 2026
    Article
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  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Genomic map of the functionally extinct northern white rhinoceros (Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
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  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

20 authors at 8 institutions in 5 countries.

Thomas Bernd HildebrandtLeibniz Institute for Zoo and Wildlife Research (IZW) in the Forschungsverbund Berlin eV, Reproduction Management, Alfred-Kowalke-Straße, Berlin, Germany.
Susanne HoltzeLeibniz Institute for Zoo and Wildlife Research (IZW) in the Forschungsverbund Berlin eV, Reproduction Management, Alfred-Kowalke-Straße, Berlin, Germany.ORCID 0000-0002-4654-1916
Silvia ColleoniAVANTEA, Laboratorio di Tecnologie della Riproduzione, Lombardy, Cremona, Italy.
Robert HermesLeibniz Institute for Zoo and Wildlife Research (IZW) in the Forschungsverbund Berlin eV, Reproduction Management, Alfred-Kowalke-Straße, Berlin, Germany.
Jan StejskalZOO Dvůr Králové, Communication and International Projects, Štefánikova, Dvůr Králové nad Labem, Czech Republic.
Isaac LekoloolKenya Wildlife Service, Veterinary and Capture Services, Nairobi, Kenya.
David NdeerehWildlife Training and Research Institute, Nakuru County, Naivasha, Kenya.
Patrick OmondiKenya Wildlife Service, Veterinary and Capture Services, Nairobi, Kenya.
Linus KariukiKenya Wildlife Service, Veterinary and Capture Services, Nairobi, Kenya.
Domnic MijeleKenya Wildlife Service, Veterinary and Capture Services, Nairobi, Kenya.
Samuel MutisyaOl Pejeta Conservancy, Conservation Laikipia, Nanyuki, Kenya.
Stephen NguluOl Pejeta Conservancy, Conservation Laikipia, Nanyuki, Kenya.
Sebastian DieckeMax-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Technology Platform Pluripotent Stem Cells, Berlin, Germany.
Katsuhiko HayashiDepartment of Stem Cell Biology and Medicine, Kyushu University, Maidashi, Higashiku, Fukuoka, Japan.
Giovanna LazzariAVANTEA, Laboratorio di Tecnologie della Riproduzione, Lombardy, Cremona, Italy.
Barbara de MoriDepartment of Comparative Biomedicine and Food Science, Università degli Studi di Padova, Italy.
Pierfrancesco BiasettiLeibniz Institute for Zoo and Wildlife Research (IZW) in the Forschungsverbund Berlin eV, Reproduction Management, Alfred-Kowalke-Straße, Berlin, Germany.
Alessandra QuaggioLeibniz Institute for Zoo and Wildlife Research (IZW) in the Forschungsverbund Berlin eV, Reproduction Management, Alfred-Kowalke-Straße, Berlin, Germany.
Cesare GalliAVANTEA, Laboratorio di Tecnologie della Riproduzione, Lombardy, Cremona, Italy.ORCID 0000-0002-9529-6136
Frank GoeritzLeibniz Institute for Zoo and Wildlife Research (IZW) in the Forschungsverbund Berlin eV, Reproduction Management, Alfred-Kowalke-Straße, Berlin, Germany.
Kenya Wildlife Service · KELeibniz Institute for Zoo and Wildlife Research · DEAvantea · ITMpala Research Center and Wildlife Foundation · KEUniversity of Padua · ITMax Delbrück Center · DEOsaka Gakuin University · JPSpráva Krkonošského Národního Parku · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In brief: To save endangered rhinoceros species, assisted reproductive technologies are warranted. We here report in vitro blastocyst generation of the Near-Threatened Southern white rhinoceros and, for the first time, also of the technically Extinct Northern white rhinoceros. Abstract: The Anthropocene is marked by a dramatic biodiversity decline, particularly affecting the family Rhinocerotidae. Three of five extant species are listed as Critically Endangered (Sumatran, Javan, black rhinoceros), one as Vulnerable (Indian rhinoceros), and only one white rhino (WR) subspecies, the Southern white rhinoceros (SWR), after more than a century of successful protection is currently classified as Near Threatened by the IUCN, while numbers again are declining. Conversely, in 2008, the SWR's northern counterpart and second WR subspecies, the Northern white rhinoceros (NWR), was declared extinct in the wild. Safeguarding these vanishing keystone species urgently requires new reproductive strategies. We here assess one such strategy, the novel in vitro fertilization program in SWR and - for the first-time NWR - regarding health effects, donor-related, and procedural factors. Over the past 8 years, we performed 65 procedures in 22 white rhinoceros females (20 SWR and 2 NWR) comprising hormonal ovarian stimulation, ovum pick-up (OPU), in vitro oocyte maturation, fertilization, embryo culture, and blastocyst cryopreservation, at an efficiency of 1.0 ± 1.3 blastocysts per OPU, generating 22 NWR, 19 SWR and 10 SWR/NWR hybrid blastocysts for the future generation of live offspring.

Indexed as

Fertilization in VitroReproductive Techniques, AssistedAnimalsBlastocystFemaleOvulation InductionPerissodactyla

Identifiers

PMID37877686
PMCPMC10620463
OpenAlexW4386885209

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.