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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Septentrio Academic Publishing
1993
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ftdoajarticles:oai:doaj.org/article:0a809cca79a84ce68c4e33d06e555661 2023-05-15T17:13:40+02:00 Twinning in muskox and the cytogenetic investigation of a freemartin N. J. Reindl L. C. Buoen T. Q. Zhang 1993-12-01T00:00:00Z https://doi.org/10.7557/2.13.2.1081 https://doaj.org/article/0a809cca79a84ce68c4e33d06e555661 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/1081 https://doaj.org/toc/1890-6729 doi:10.7557/2.13.2.1081 1890-6729 https://doaj.org/article/0a809cca79a84ce68c4e33d06e555661 Rangifer, Vol 13, Iss 2 (1993) twins reproductive dysfunction muskoxen Animal culture SF1-1100 article 1993 ftdoajarticles https://doi.org/10.7557/2.13.2.1081 2022-12-31T02:11:54Z 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 Directory of Open Access Journals: DOAJ Articles Rangifer 13 3 79 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
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language |
English |
topic |
twins reproductive dysfunction muskoxen Animal culture SF1-1100 |
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twins reproductive dysfunction muskoxen Animal culture SF1-1100 N. J. Reindl L. C. Buoen T. Q. Zhang Twinning in muskox and the cytogenetic investigation of a freemartin |
topic_facet |
twins reproductive dysfunction muskoxen Animal culture SF1-1100 |
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 |
N. J. Reindl L. C. Buoen T. Q. Zhang |
author_facet |
N. J. Reindl L. C. Buoen T. Q. Zhang |
author_sort |
N. J. Reindl |
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://doi.org/10.7557/2.13.2.1081 https://doaj.org/article/0a809cca79a84ce68c4e33d06e555661 |
genre |
muskox Rangifer |
genre_facet |
muskox Rangifer |
op_source |
Rangifer, Vol 13, Iss 2 (1993) |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/1081 https://doaj.org/toc/1890-6729 doi:10.7557/2.13.2.1081 1890-6729 https://doaj.org/article/0a809cca79a84ce68c4e33d06e555661 |
op_doi |
https://doi.org/10.7557/2.13.2.1081 |
container_title |
Rangifer |
container_volume |
13 |
container_issue |
3 |
container_start_page |
79 |
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1766070848168394752 |