Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Nan E. Schaffer"'
Publikováno v:
Journal of Threatened Taxa, Vol 12, Iss 3, Pp 15279-15288 (2020)
The Sumatran Rhinoceros Dicerorhinus sumatrensis is on the edge of extinction. The decline of this species was initially attributed to poaching and habitat loss, but evidence presented here indicates that reproductive failure has also been a signific
Externí odkaz:
https://doaj.org/article/d31a117a3c714d298f479a671149f55b
Publikováno v:
Journal of Threatened Taxa, Vol 12, Iss 3, Pp 15279-15288 (2020)
The Sumatran Rhinoceros Dicerorhinus sumatrensis is on the edge of extinction. The decline of this species was initially attributed to poaching and habitat loss, but evidence presented here indicates that reproductive failure has also been a signific
Publikováno v:
Zoo Biology. 17:343-359
4Sedgwick County Zoo, Wichita, Kansas Captive breeding programs for the rhinoceros can be enhanced by studying their reproductive physiology. To do so requires repetitive manipulations under physically controlled circumstances. To facilitate these pr
Publikováno v:
American Journal of Primatology. 24:265-271
Rectal probe electroejaculation of lowland gorillas (Gorilla gorilla gorilla) consistently yields poor quality semen. To improve the semen parameters of these specimens, changes in the methodology of electroejaculation were studied. Retrograde ejacul
Publikováno v:
Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians. 32(1)
Reproductive tracts or tissues from five male black rhinoceroses (Diceros bicornis), two male white rhinoceroses (Ceratotherium simum), two male one-horned Asian rhinoceroses (Rhinoceros unicornis), seven female black rhinoceroses, and six female whi
Autor:
Nan E. Schaffer, J. Smart, N. G. Berger, Barry D. Bavister, Sandra Kempske, Dorothy E. Boatman, Michael R. Cranfield, D. M. Ialeggio
Publikováno v:
In Vitro Fertilization and Embryo Transfer in Primates ISBN: 9781461276401
Each year, an area of rainforest habitat estimated to be greater than the size of the state of New York is lost to human intervention. At this rate of rainforest and other ecosystem loss, some authorities believe that between 1 and 5 million species
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7db440964e8af4752fd6bd477aba9e1a
https://doi.org/10.1007/978-1-4612-2716-8_20
https://doi.org/10.1007/978-1-4612-2716-8_20
Publikováno v:
Zoo Biology. 8:47-60
In-depth investigations are needed on methods of semen collection and analysis in endangered nonhuman primates. Due to lack of resources, zoos need the assistance and support of universities and primate centers to perform these investigations. Severa
Autor:
Barry D. Bavister, Sandra Kempske, Nan E. Schaffer, Michael R. Cranfield, J. Adams, Dorothy E. Boatman, N. Miner, Patricia M. Morgan, M. Panos, N. G. Berger
Publikováno v:
Zoo Biology. 8:33-46
Steroid hormone levels were measured during unstimulated menstrual cycles of pig-tailed macaques (Macaca nemestrina) and lion-tailed macaques (Macaca silenus). The values were similar, suggesting that the pig-tailed macaque may be an appropriate mode