THE RELATIONSHIP BETWEEN DURATION OF ESTRUS AND PROLIFICACY IN CROSSBRED EWES
The regression of prolificacy on duration of estrus was positive in 18-mo and positive after 18 h in 30-mo-old ewes. Ewes bearing twins were in estrus longer than ewes bearing singles. The relationship was not strong enough, however, to allow accurate prediction of prolificacy from estrous duration....
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Published in: | Canadian journal of animal science Vol. 60; no. 3; pp. 779 - 782 |
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Main Authors: | , |
Format: | Journal Article |
Language: | English |
Published: |
01-09-1980
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Online Access: | Get full text |
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Summary: | The regression of prolificacy on duration of estrus was positive in 18-mo and positive after 18 h in 30-mo-old ewes. Ewes bearing twins were in estrus longer than ewes bearing singles. The relationship was not strong enough, however, to allow accurate prediction of prolificacy from estrous duration. |
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ISSN: | 0008-3984 1918-1825 |
DOI: | 10.4141/cjas80-088 |