Reproductive performance of two types of Sudan Desert sheep
Data were available to study reproductive aspects on a total of 1860 matings over three years for the Shugor and Watish ecotypes of Sudan Desert sheep kept under hot semi-arid conditions at the El Huda sheep research station in the Sudan. Overall adjusted mean gestation length was 150 days with no c...
| Main Authors: | , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
1987
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/66975 |
| _version_ | 1855513219704029184 |
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| author | El-Karim, A.I.A. Owen, J.B. |
| author_browse | El-Karim, A.I.A. Owen, J.B. |
| author_facet | El-Karim, A.I.A. Owen, J.B. |
| author_sort | El-Karim, A.I.A. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Data were available to study reproductive aspects on a total of 1860 matings over three years for the Shugor and Watish ecotypes of Sudan Desert sheep kept under hot semi-arid conditions at the El Huda sheep research station in the Sudan. Overall adjusted mean gestation length was 150 days with no consistent effect of genotype or of the sex of lamb carried. Ewes in the older age group had longer gestation length. Young (2-tooth) ewes and twin-bearing ewes tended to carry their lambs for a shorter time than single bearing ewes. The only consistent effect of genotype on reproduction was on litter size. Ewe age group, on the other hand, had substantial effect on all the reproductive traits measured. Older ewes had a better conception rate, lower barrenness rate and higher litter size than the young (2-tooth) ewes. It was concluded that Sudan Desert sheep in their native environment can achieve acceptable levels of reproductive performance under good management. |
| format | Journal Article |
| id | CGSpace66975 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1987 |
| publishDateRange | 1987 |
| publishDateSort | 1987 |
| record_format | dspace |
| spelling | CGSpace669752023-06-12T08:14:22Z Reproductive performance of two types of Sudan Desert sheep El-Karim, A.I.A. Owen, J.B. sheep reproduction fertility multiple births infertility Data were available to study reproductive aspects on a total of 1860 matings over three years for the Shugor and Watish ecotypes of Sudan Desert sheep kept under hot semi-arid conditions at the El Huda sheep research station in the Sudan. Overall adjusted mean gestation length was 150 days with no consistent effect of genotype or of the sex of lamb carried. Ewes in the older age group had longer gestation length. Young (2-tooth) ewes and twin-bearing ewes tended to carry their lambs for a shorter time than single bearing ewes. The only consistent effect of genotype on reproduction was on litter size. Ewe age group, on the other hand, had substantial effect on all the reproductive traits measured. Older ewes had a better conception rate, lower barrenness rate and higher litter size than the young (2-tooth) ewes. It was concluded that Sudan Desert sheep in their native environment can achieve acceptable levels of reproductive performance under good management. 1987 2015-06-05T12:18:48Z 2015-06-05T12:18:48Z Journal Article https://hdl.handle.net/10568/66975 en Limited Access El-Karim, A.I.A. and Owen, J.B. 1987. Reproductive performance of two types of Sudan Desert sheep. Journal of Agricultural Research and Development 4(3): 183-187. |
| spellingShingle | sheep reproduction fertility multiple births infertility El-Karim, A.I.A. Owen, J.B. Reproductive performance of two types of Sudan Desert sheep |
| title | Reproductive performance of two types of Sudan Desert sheep |
| title_full | Reproductive performance of two types of Sudan Desert sheep |
| title_fullStr | Reproductive performance of two types of Sudan Desert sheep |
| title_full_unstemmed | Reproductive performance of two types of Sudan Desert sheep |
| title_short | Reproductive performance of two types of Sudan Desert sheep |
| title_sort | reproductive performance of two types of sudan desert sheep |
| topic | sheep reproduction fertility multiple births infertility |
| url | https://hdl.handle.net/10568/66975 |
| work_keys_str_mv | AT elkarimaia reproductiveperformanceoftwotypesofsudandesertsheep AT owenjb reproductiveperformanceoftwotypesofsudandesertsheep |