| Main ref. | |||||
| Country | Norway |
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| Locality | |||||
| Trait | age at first maturity |
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| Comment | Ages ranged from 1, 4 and 5 years of age. |
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| Mean | Unit |
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| S.D | C.V |
S.E |
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| Heritability | 0.48000 |
Method |
offspring/parent regression |
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| Comment | Estimated heritability based on age of offspring and of dam. |
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| Selection studies | |||||
| Response (%) | Method | individual selection |
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| Comment | Positive response to selection for age at sexual maturity. |
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