Twinning in muskox and the cytogenetic investigation of a freemartin
The occurrence of twinning has been documented for muskox in both wild and captive populations. Of two known captive twin births only one set survived beyond 120 days. In both cases the twins were male-female pairs and both females showed abnormal sexual development. Two sets of stillborn twins have...
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Language: | English |
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Septentrio Academic Publishing
1993
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ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/1081 2023-05-15T17:13:40+02:00 Twinning in muskox and the cytogenetic investigation of a freemartin Reindl, N. J. Buoen, L. C. Zhang, T. Q. 1993-12-01 application/pdf https://septentrio.uit.no/index.php/rangifer/article/view/1081 https://doi.org/10.7557/2.13.2.1081 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/1081/1032 https://septentrio.uit.no/index.php/rangifer/article/view/1081 doi:10.7557/2.13.2.1081 Copyright (c) 2015 N. J. Reindl, L. C. Buoen, T. Q. Zhang http://creativecommons.org/licenses/by/3.0/ CC-BY Rangifer; Årg 13 Nr 2 (1993); 79-82 Rangifer; Vol 13 No 2 (1993); 79-82 1890-6729 twins reproductive dysfunction muskoxen info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1993 ftunitroemsoe https://doi.org/10.7557/2.13.2.1081 2021-08-16T14:49:07Z The occurrence of twinning has been documented for muskox in both wild and captive populations. Of two known captive twin births only one set survived beyond 120 days. In both cases the twins were male-female pairs and both females showed abnormal sexual development. Two sets of stillborn twins have also been recorded. All four stillborn fetuses were female and none showed anomalies of the reproductive tract upon post-mortem examination. Blood cultures from the surviving male and female twins revealed that both were chimeric, indicating the admixture of fetal blood. Fibroblast cultures were normal for the respective sex of each individual. The freemartin heifer had anatomical abnormalities of the clitoris as well as the secondary sex characteristics of a male. Article in Journal/Newspaper muskox Rangifer University of Tromsø: Septentrio Academic Publishing Rangifer 13 3 79 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
twins reproductive dysfunction muskoxen |
spellingShingle |
twins reproductive dysfunction muskoxen Reindl, N. J. Buoen, L. C. Zhang, T. Q. Twinning in muskox and the cytogenetic investigation of a freemartin |
topic_facet |
twins reproductive dysfunction muskoxen |
description |
The occurrence of twinning has been documented for muskox in both wild and captive populations. Of two known captive twin births only one set survived beyond 120 days. In both cases the twins were male-female pairs and both females showed abnormal sexual development. Two sets of stillborn twins have also been recorded. All four stillborn fetuses were female and none showed anomalies of the reproductive tract upon post-mortem examination. Blood cultures from the surviving male and female twins revealed that both were chimeric, indicating the admixture of fetal blood. Fibroblast cultures were normal for the respective sex of each individual. The freemartin heifer had anatomical abnormalities of the clitoris as well as the secondary sex characteristics of a male. |
format |
Article in Journal/Newspaper |
author |
Reindl, N. J. Buoen, L. C. Zhang, T. Q. |
author_facet |
Reindl, N. J. Buoen, L. C. Zhang, T. Q. |
author_sort |
Reindl, N. J. |
title |
Twinning in muskox and the cytogenetic investigation of a freemartin |
title_short |
Twinning in muskox and the cytogenetic investigation of a freemartin |
title_full |
Twinning in muskox and the cytogenetic investigation of a freemartin |
title_fullStr |
Twinning in muskox and the cytogenetic investigation of a freemartin |
title_full_unstemmed |
Twinning in muskox and the cytogenetic investigation of a freemartin |
title_sort |
twinning in muskox and the cytogenetic investigation of a freemartin |
publisher |
Septentrio Academic Publishing |
publishDate |
1993 |
url |
https://septentrio.uit.no/index.php/rangifer/article/view/1081 https://doi.org/10.7557/2.13.2.1081 |
genre |
muskox Rangifer |
genre_facet |
muskox Rangifer |
op_source |
Rangifer; Årg 13 Nr 2 (1993); 79-82 Rangifer; Vol 13 No 2 (1993); 79-82 1890-6729 |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/1081/1032 https://septentrio.uit.no/index.php/rangifer/article/view/1081 doi:10.7557/2.13.2.1081 |
op_rights |
Copyright (c) 2015 N. J. Reindl, L. C. Buoen, T. Q. Zhang http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/2.13.2.1081 |
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Rangifer |
container_volume |
13 |
container_issue |
3 |
container_start_page |
79 |
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1766070846403641344 |