Reproductive responses associated with ram introduction in mature tropical Menz ewes after a period of isolation
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Title |
Reproductive responses associated with ram introduction in mature tropical Menz ewes after a period of isolation
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Creator |
Mukasa-Mugerwa, E.
Sovani, S. Toe, F. Lahlou-Kassi, A. |
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Subject |
ETHIOPIA
RAMS EWES REPRODUCTIVE PERFORMANCE ISOLATION TECHNIQUES ANIMAL NUTRITION MENZ SHEEP |
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Description |
This study was undertaken using 48 mature Menz ewes (3-6 years of age) and averaging 31.5 (standard deviation (SD)=4.9) kg body weight, to evaluate oestrus synchronization, conception and lambing rates after ram introduction following a period of isolation (n=24) or constant exposure to vasectomized rams (n=24) on a low or high level of nutrition. The overall level of oestrus synchrony was low (27 percent), but was higher for animals previously isolated (38 vs. 17 percent). The mean interval from ram introduction to oestrus was 12.2 (SD=7.3) days, but this was significantly shorter for isolated ewes (9.4+1.2 vs. 14.8+1.7 days, P
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Date |
2013-05-06T07:00:19Z
2013-05-06T07:00:19Z 1994 |
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Type |
Journal Article
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Identifier |
Animal Reproduction Science;36(3-4): 243-251
0378-4320 http://hdl.handle.net/10568/28291 |
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Language |
en
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Source |
Animal Reproduction Science
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