| Registro completo |
| Provedor de dados: |
19
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| País: |
Japan
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| Título: |
Estimation of Genetic Parameters for Weight, Reproduction, and Wool Traits of Suffolk Sheep
サフォーク種の体重形質，繁殖形質，羊毛形質に関する遺伝的パラメータの推定
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| Autores: |
中川, 智史
鈴木, 三義
山内, 和律
山田, 渥
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| Data: |
2005
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| Ano: |
2005
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| Palavras-chave: |
Genetic parameter
Weight
Reproduction
Wool
Suffolk
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| Resumo: |
滝川畜産試験場で1980年から1996年に集積された記録を用いて，サフォーク種の体重形質，繁殖形質，羊毛形質の遺伝的パラメータをREMLにより推定した．体重形質の直接遺伝率は日齢にともない増加し（0.15→0.31），母性遺伝率は日齢にともない減少した（0.24→0.09）．直接遺伝効果と母性遺伝効果間の相関は日齢にともない正から負へと変化した（0.21→−0.42）．繁殖形質の直接遺伝率はいずれも低い値であり（0.03〜0.18），羊毛形質はいずれも高い値であった（0.36〜0.60）．直接遺伝効果間の相関は，体重形質間（0.29〜0.92）と繁殖形質間（0.19〜0.88）で正の値，体重形質と繁殖形質間（−0.01〜0.57）ではほとんどが正の値であった．羊毛形質と体重形質および繁殖形質の間では幅広い範囲の値をとった（−0.28〜0.51）．
Genetic parameters on weight, reproduction, and wool traits were estimated using REML for Suffolk sheep from data collected from 1980 to 1996 at the Takikawa Livestock Research Station. Estimates of direct heritabilities for weight traits from single-trait analyses increased with age in day from 0.15 to 0.31. On the contrary, estimates of maternal heritabilities decreased with age in day from 0.24 to 0.09. Additionally, estimates of direct-maternal genetic correlations for weight traits were changed from positive to negative with increasing age in day(0.21→-0.42). Estimates of direct heritabilities for reproduction traits were all low (0.03∼0.18) and for wool traits were all high (0.36∼0.60). Estimates of direct genetic correlations among weight traits (0.29∼0.92) and those among reproduction traits (0.19∼0.88) from multi-trait analyses were all positive. Additionally, estimates of direct genetic correlations between weight traits and reproduction traits (-0.01∼0.57) were almost positive. Estimates of direct genetic correlation between wool traits and weight or reproduction traits were wide range of value (-0.28∼0.51).
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| Idioma: |
Japonês
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| Identificador: |
http://ir.obihiro.ac.jp/dspace/handle/10322/2601
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| Editor: |
日本畜産学会
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| Formato: |
application/pdf
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| Direitos: |
日本畜産学会
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