作者单位：
Norwegian Assoc Sheep & Goat Breeders, POB 104, N-1431 As, Norway
[1]
Scotlands Rural Coll, Hill & Mt Res Ctr, Kirkton Farm FK20 8RU, Crianlarich, Scotland
[2]
Sheep Ireland, Highfield House, Bandon, Cork, Ireland
[3]
TEAGASC, Anim & Grassland Res & Innovat Ctr, Moorepk, Fermoy, Cork, Ireland
[4]
发布时间
2020-12-09
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