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Freemartinism in replacement ewe-lambs of the Ripollesa sheep breed
The freemartinism syndrome affects almost all female calves born as co-twins to male calves, whereas little is known about this phenomenon in female sheep. Within this context, 1,185 ewe-lambs from the Ripollesa sheep breed were genotyped for the presence of oY1 polymorphism (a non-autosomal region...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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The Korean Society of Veterinary Science
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6265576/ https://www.ncbi.nlm.nih.gov/pubmed/30304885 http://dx.doi.org/10.4142/jvs.2018.19.6.858 |
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author | Marí, Pilar Casellas, Joaquim |
author_facet | Marí, Pilar Casellas, Joaquim |
author_sort | Marí, Pilar |
collection | PubMed |
description | The freemartinism syndrome affects almost all female calves born as co-twins to male calves, whereas little is known about this phenomenon in female sheep. Within this context, 1,185 ewe-lambs from the Ripollesa sheep breed were genotyped for the presence of oY1 polymorphism (a non-autosomal region of the Y chromosome). Neither ewe-lambs from single births (856) nor ewe-lambs from all-female multiple births (170) were revealed as freemartins, whereas five of 159 ewe-lambs from multiple births with male co-twins were freemartins (3.15 ± 1.38%). All freemartin ewe-lambs were confirmed by physical examination of external genitalia. The results confirm a low incidence of freemartinism from heterosexual twin pregnancies in Ripollesa sheep. |
format | Online Article Text |
id | pubmed-6265576 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Korean Society of Veterinary Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-62655762018-12-04 Freemartinism in replacement ewe-lambs of the Ripollesa sheep breed Marí, Pilar Casellas, Joaquim J Vet Sci Case Report The freemartinism syndrome affects almost all female calves born as co-twins to male calves, whereas little is known about this phenomenon in female sheep. Within this context, 1,185 ewe-lambs from the Ripollesa sheep breed were genotyped for the presence of oY1 polymorphism (a non-autosomal region of the Y chromosome). Neither ewe-lambs from single births (856) nor ewe-lambs from all-female multiple births (170) were revealed as freemartins, whereas five of 159 ewe-lambs from multiple births with male co-twins were freemartins (3.15 ± 1.38%). All freemartin ewe-lambs were confirmed by physical examination of external genitalia. The results confirm a low incidence of freemartinism from heterosexual twin pregnancies in Ripollesa sheep. The Korean Society of Veterinary Science 2018-11 2018-11-28 /pmc/articles/PMC6265576/ /pubmed/30304885 http://dx.doi.org/10.4142/jvs.2018.19.6.858 Text en © 2018 The Korean Society of Veterinary Science http://creativecommons.org/licenses/by-nc/4.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Case Report Marí, Pilar Casellas, Joaquim Freemartinism in replacement ewe-lambs of the Ripollesa sheep breed |
title | Freemartinism in replacement ewe-lambs of the Ripollesa sheep breed |
title_full | Freemartinism in replacement ewe-lambs of the Ripollesa sheep breed |
title_fullStr | Freemartinism in replacement ewe-lambs of the Ripollesa sheep breed |
title_full_unstemmed | Freemartinism in replacement ewe-lambs of the Ripollesa sheep breed |
title_short | Freemartinism in replacement ewe-lambs of the Ripollesa sheep breed |
title_sort | freemartinism in replacement ewe-lambs of the ripollesa sheep breed |
topic | Case Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6265576/ https://www.ncbi.nlm.nih.gov/pubmed/30304885 http://dx.doi.org/10.4142/jvs.2018.19.6.858 |
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