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*Sumie Nonaka
Faculty of Agriculture, Iwate University
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Tutomu Hashizume
Faculty of Agriculture, Iwate University
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Tsugio Koseki
Niikappu Station, National Livestock Breeding Center
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Masahiko Okimura
Niikappu Station, National Livestock Breeding Center
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Takeshi Oyabu
Niikappu Station, National Livestock Breeding Center
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Ken Nakabayashi
Niikappu Station, National Livestock Breeding Center