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T. Itami
Dept. Anim. Reprod., College Agric., Univ. Osaka Pref.
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H. Morioka
Dept. Anim. Reprod., College Agric., Univ. Osaka Pref.
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J. Mori
Dept. Anim. Reprod., College Agric., Univ. Osaka Pref.
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K. Konishi
Tottori National Livestock Breed. Sta., Minist. Agric., Forest. and Fish.
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N. Saito
Tottori National Livestock Breed. Sta., Minist. Agric., Forest. and Fish.
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H. Matsunaga
The Osaka Agric., Res. Cent.
