In Vitro Maturation of Oocytes Derived from the Brown Bear (Ursus Arctos)

Yin, Xi-Jun; Lee, Hyo-Sang; Choi, Eun G.; Yu, Xiaofeng; Park, Gye-Young; Bae, Inhyu; Yang, Chul-Ju; Oh, Dong-Hwan; Kim, Nam-Hung; Kong, Il‐Keun

doi:10.1262/jrd.18157

Cited by 4 publications

(1 citation statement)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This study shows that unlike in canids, ursid oocytes undergo nuclear maturation in vitro relatively easy. More recently, IVM procedures have been applied to brown bear oocytes (Yin et al. 2007).…”

Section: Reproductive Technologies In Ursidaementioning

confidence: 99%

Reproductive Technologies Relevant to the Genome Resource Bank in Carnivora

Amstislavsky

Lindeberg

Luvoni

2011

Reprod Domestic Animals

View full text Add to dashboard Cite

Carnivora is one of the most species-rich order of Mammalia. Some species, e.g. domestic cats, dogs and ferrets, are among the most popular pets; others, such as minks and farmed foxes, have economic value for the fur breeding industry. Still others, such as tigers, bears and other top predators, have great impact on the health of natural ecosystems. Most if not all Carnivora species have great cultural and aesthetic importance for man. There are enormous differences between mammalian species in reproductive physiology, and it is not surprising that reproductive technologies can be used with high efficiency with some animal groups, e.g. most farm animals and laboratory rodents, but are very laborious when used with Carnivora species, which often possess unique reproductive traits. The efficiency of assisted reproductive technology (ART) applied to semi-domestic, non-domestic and especially to endangered species of Carnivora remains extremely low in most cases, and often the first positive result reported is the only instance when ART has been successful with that species. Although there are approximately 270 species in the Carnivora order, to the best of our knowledge, successful published attempts to apply ART have been reported for only four families: Mustelidae, Felidae, Canidae and Ursidae. The main achievements in ART, embryo technology in particular, for these families of Carnivora, together with challenges and problems, are reviewed in the relevant sections.

show abstract

Section: Reproductive Technologies In Ursidaementioning

confidence: 99%

Reproductive Technologies Relevant to the Genome Resource Bank in Carnivora

Amstislavsky

Lindeberg

Luvoni

2011

Reprod Domestic Animals

View full text Add to dashboard Cite

show abstract

Reproduction and Advances in Reproductive Studies in Carnivores

Jewgenow

Songsasen

2014

Advances in Experimental Medicine and Biology

View full text Add to dashboard Cite

Reproductive mechanisms are extraordinarily diverse among species, even within the same phylogenetic clade. Due to this, it has been difficult to directly apply reproductive technologies developed in human and livestock to genetically manage ex situ wildlife, including carnivores. To date, more common, closely related species, e.g., domestic cats, dogs and ferrets have served as valuable models for developing reproductive technologies for managing rare, endangered carnivores. Artificial insemination and sperm cryopreservation have already been successfully used to manage ex situ populations in some carnivore species, such as the black-footed ferret, cheetah and giant panda. However, technologies aiming at preserving genetics of valuable females have not been fully developed in carnivores, due to the lack of fundamental knowledge about reproductive anatomy and physiology, gamete development, embryogenesis and cryopreservation. The present chapter is divided into two parts. The first part focuses on current knowledge about carnivore reproduction, with emphasis on species diversity in reproductive mechanisms. The second part highlights the progress in reproductive science and related technologies made during the last decade. In addition, we provide examples of how reproductive technologies can contribute to carnivore management and conservation. Although carnivores are comprised of 19 families, we will only focus our attention on four taxonomic groups, including felids, canids, ursids and mustelids.

show abstract