MANAGEMENT OF YEARLING HERD BULLS Good experimental evidence has been obtained at the Department of Agriculture's Ruakura Animal Research Station to show that excessive use of a yearling herd bull will reduce his fertility in later life. For best results a yearling should not be run with more than 12 to 14 heifers, unless some effort is made to reduce the amount of work he will do.
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https://paperspast.natlib.govt.nz/periodicals/TAH195711.2.28.3
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Te Ao Hou, November 1957, Page 53
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Tapeke kupu
67MANAGEMENT OF YEARLING HERD BULLS Te Ao Hou, November 1957, Page 53
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The Secretary Maori Purposes Fund Board
C/- Te Puni Kokiri
PO Box 3943
WELLINGTON
Phone: (04) 922 6000
Email: MB-RPO-MPF@tpk.govt.nz
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