Research Article
Phenotypic Characterization and Reproductive Performance of Blackhead Somali Sheep in Fafen Zone of Somali Regional State, Ethiopia
Table 4
Reproductive performance of Blackhead Somali sheep.
| Parameters | N | Mean ± SD |
| Age of first service ram (months) | 110 | 10.08 ± 1.90 | Age of first service ewe (months) | 150 | 13.75 ± 2.44 | Age of first lambing (months) | 110 | 19.12 ± 2.41 | Lambing interval (months) | 110 | 9.66 ± 1.56 | Life lamb crop | 106 | 6.18 ± 2.01 | The reproductive life span of ewe (years) | 106 | 6.04 ± 1.43 | The reproductive life span of ram (years) | 101 | 6.63 ± 1.49 | Twinning percentage (%) | 150 | 12.30 | Triplet percentage (%) | 150 | 1.90 | Mortality rates up to 90 days after birth (%) | 150 | 10.40 |
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