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    In vitro fertilization program in white rhinoceros (2023)

    Art
    Zeitschriftenartikel / wissenschaftlicher Beitrag
    Autoren
    Hildebrandt, Thomas B (WE 18)
    Holtze, Susanne
    Colleoni, Silvia
    Hermes, Robert
    Stejskal, Jan
    Lekolool, Isaac
    Ndeereh, David
    Omondi, Patrick
    Kariuki, Linus
    Mijele, Domnic
    Mutisya, Samuel
    Ngulu, Stephen
    Diecke, Sebastian
    Hayashi, Katsuhiko
    Lazzari, Giovanna
    de Mori, Barbara
    Biasetti, Pierfrancesco
    Quaggio, Alessandra
    Galli, Cesare
    Goeritz, Frank
    Quelle
    Reproduction
    Bandzählung: 166
    Heftzählung: 6
    Seiten: 383 – 399
    ISSN: 1470-1626
    Sprache
    Englisch
    Verweise
    URL (Volltext): https://rep.bioscientifica.com/view/journals/rep/166/6/REP-23-0087.xml
    DOI: 10.1530/REP-23-0087
    Pubmed: 37877686
    Kontakt
    Nutztierklinik

    Königsweg 65
    14163 Berlin
    +49 30 838 62261
    klauentierklinik@vetmed.fu-berlin.de

    Abstract / Zusammenfassung

    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.