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Livestock
Livestock & Forage
ebv debate
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<blockquote data-quote="NZDan" data-source="post: 1880510" data-attributes="member: 1037"><p>Getting balance right between longevity and generation interval is critical, for the last number of years we've been recording 'exit codes' on all our sheep, basically why have they left the flock. Hopefully we'll get a longevity EBV very soon calculated from this data. The US with cattle use two different EBVs one is longevity the other is stayabilty. Longevty measures the length of time a bulls daughters stay in the herd, Stayabily measures the % of a bulls daughters calve at 6 years of age. Ironically both traits are very strongly linked to heifer fertility.</p></blockquote><p></p>
[QUOTE="NZDan, post: 1880510, member: 1037"] Getting balance right between longevity and generation interval is critical, for the last number of years we've been recording 'exit codes' on all our sheep, basically why have they left the flock. Hopefully we'll get a longevity EBV very soon calculated from this data. The US with cattle use two different EBVs one is longevity the other is stayabilty. Longevty measures the length of time a bulls daughters stay in the herd, Stayabily measures the % of a bulls daughters calve at 6 years of age. Ironically both traits are very strongly linked to heifer fertility. [/QUOTE]
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ebv debate
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