Ovulation rate and embryo survival in Icelandic ewes
Icelandic sheep, the only breed in Iceland, belongs to the North European short-tailed group of sheep which includes the Finnish Landrace and Swedish Landrace breeds (Adalsteinsson, 1970). The breed was brought to Iceland during the settlement period (870-930 AD) and it is believed that there has be...
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Language: | English |
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Cambridge University Press (CUP)
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Online Access: | http://dx.doi.org/10.1017/s0308229600010114 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0308229600010114 |
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crcambridgeupr:10.1017/s0308229600010114 2024-03-03T08:45:42+00:00 Ovulation rate and embryo survival in Icelandic ewes Hanrahan, J.P. Adalsteinsson, S. Thorgeirsson, S. Thorsteinsson, S.S. Eythorsdottir, E. 1989 http://dx.doi.org/10.1017/s0308229600010114 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0308229600010114 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Proceedings of the British Society of Animal Production (1972) volume 1989, page 10-10 ISSN 0308-2296 0308-2296 General Medicine journal-article 1989 crcambridgeupr https://doi.org/10.1017/s0308229600010114 2024-02-08T08:34:21Z Icelandic sheep, the only breed in Iceland, belongs to the North European short-tailed group of sheep which includes the Finnish Landrace and Swedish Landrace breeds (Adalsteinsson, 1970). The breed was brought to Iceland during the settlement period (870-930 AD) and it is believed that there has been little if any genetic introduction from outside the country during the last 200 years. The average litter size is about 1.7 with a remarkably low incidnce (˂1.5%) of triplets. The conception rate to a single cycle in the absence of synchronisation is reputedly greater than 90%. There is also evidence for the presence of a gene (Thoka gene) with a large effect on litter size in certain flocks (Jonmundsson and Adalsteinsson, 1985). The low incidence of triplet births and the apparently high conception rate suggest that the distribtuion of ovulation rate and the level of embryo survival may be different from those of typical British breeds. Article in Journal/Newspaper Iceland Cambridge University Press Triplets ENVELOPE(-59.750,-59.750,-62.383,-62.383) Triplets The ENVELOPE(-59.750,-59.750,-62.383,-62.383) Proceedings of the British Society of Animal Production (1972) 1989 10 10 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
General Medicine |
spellingShingle |
General Medicine Hanrahan, J.P. Adalsteinsson, S. Thorgeirsson, S. Thorsteinsson, S.S. Eythorsdottir, E. Ovulation rate and embryo survival in Icelandic ewes |
topic_facet |
General Medicine |
description |
Icelandic sheep, the only breed in Iceland, belongs to the North European short-tailed group of sheep which includes the Finnish Landrace and Swedish Landrace breeds (Adalsteinsson, 1970). The breed was brought to Iceland during the settlement period (870-930 AD) and it is believed that there has been little if any genetic introduction from outside the country during the last 200 years. The average litter size is about 1.7 with a remarkably low incidnce (˂1.5%) of triplets. The conception rate to a single cycle in the absence of synchronisation is reputedly greater than 90%. There is also evidence for the presence of a gene (Thoka gene) with a large effect on litter size in certain flocks (Jonmundsson and Adalsteinsson, 1985). The low incidence of triplet births and the apparently high conception rate suggest that the distribtuion of ovulation rate and the level of embryo survival may be different from those of typical British breeds. |
format |
Article in Journal/Newspaper |
author |
Hanrahan, J.P. Adalsteinsson, S. Thorgeirsson, S. Thorsteinsson, S.S. Eythorsdottir, E. |
author_facet |
Hanrahan, J.P. Adalsteinsson, S. Thorgeirsson, S. Thorsteinsson, S.S. Eythorsdottir, E. |
author_sort |
Hanrahan, J.P. |
title |
Ovulation rate and embryo survival in Icelandic ewes |
title_short |
Ovulation rate and embryo survival in Icelandic ewes |
title_full |
Ovulation rate and embryo survival in Icelandic ewes |
title_fullStr |
Ovulation rate and embryo survival in Icelandic ewes |
title_full_unstemmed |
Ovulation rate and embryo survival in Icelandic ewes |
title_sort |
ovulation rate and embryo survival in icelandic ewes |
publisher |
Cambridge University Press (CUP) |
publishDate |
1989 |
url |
http://dx.doi.org/10.1017/s0308229600010114 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0308229600010114 |
long_lat |
ENVELOPE(-59.750,-59.750,-62.383,-62.383) ENVELOPE(-59.750,-59.750,-62.383,-62.383) |
geographic |
Triplets Triplets The |
geographic_facet |
Triplets Triplets The |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Proceedings of the British Society of Animal Production (1972) volume 1989, page 10-10 ISSN 0308-2296 0308-2296 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0308229600010114 |
container_title |
Proceedings of the British Society of Animal Production (1972) |
container_volume |
1989 |
container_start_page |
10 |
op_container_end_page |
10 |
_version_ |
1792501334121906176 |