Research On Breed Crossing Of Sheep Is A Tricky Task
Officers of the New- South Wales Department of Agriculture are engaged on the tricky task of evolving a new breed of polled sheep by crossing the Dorset Horn with the Ryeland. After breeding three generations of lambs of reciprocal crosses, the results seem to indicate a resisting influence of -sex linkage. ,
The ewe progeny throw to the Ryeland and are 100 per cent polL ed, but the ram progeny seem to derive their influence from the Dorset Horn and to date 90 per cent have had to be culled because of their inheritance of horns. In South Australia, a farm is engaged on an independent effort to poll the Dorset, using as his agency the influence of the Corriedale. He seems to have had less troube getting good polled sires of the cross and has now- reached the stage where pure Dorset Horn sires can be used on the polled ewes and a high percentage of polled progeny obtained.
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https://paperspast.natlib.govt.nz/newspapers/BPB19491219.2.37
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Bay of Plenty Beacon, Volume 14, Issue 78, 19 December 1949, Page 5
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169Research On Breed Crossing Of Sheep Is A Tricky Task Bay of Plenty Beacon, Volume 14, Issue 78, 19 December 1949, Page 5
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