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Review: Reproductive physiology of bison and application of assisted reproductive technologies to their conservation

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ANIMAL
卷 17, 期 -, 页码 -

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ELSEVIER
DOI: 10.1016/j.animal.2023.100842

关键词

Biobanking; Cryopreservation; Embryo; Estrus; Seasonality; Sperm

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To conserve the important species of bison in Europe and North America, conservation efforts have focused on establishing sustainable herds through the use of assisted reproductive technologies (ARTs). These technologies facilitate the transfer of genetics and offer protection against future losses of genetic diversity. Research on ART for bison has made progress, but there are still opportunities for improvement and expanding their impact on bison conservation.
Bison are an ecologically and culturally important species on the European and North American continents. Their near extirpation was met with conservation efforts that prevented their extinction but left few animals or highly fragmented populations. Contemporary conservation efforts are focused on building ecologically and genetically sustainable bison herds for long-term conservation of the species. Assisted reproductive technologies (ARTs) can play a key role in building these herds by facilitating the movement of genetics in the form of gametes and embryos, while protecting animal well-being and ensuring biosecurity of existing bison herds. In addition, ARTs such as gamete and embryo cryopreservation can be used to protect against future losses of genetic diversity through biobanking. In this review, a brief summary of basic bison reproductive physiology is presented followed by an overview of the current state of ART in Bison bison (American bison) and Bison bonasus (European bison or wisent). Research on ART ranging from artificial insemination to in vitro embryo transfer and cloning is discussed with particular regard to the application of ART for conservation purposes. While significant progress has been made in ART for bison, there are still many opportunities to improve these technologies and expand their impact for bison conservation.& COPY; 2023 The Author(s). Published by Elsevier B.V. on behalf of The Animal Consortium. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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