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Cattle Boards
Breeding / Calving Issues
From Drovers: Does AI cost or pay
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<blockquote data-quote="regolith" data-source="post: 886742" data-attributes="member: 9267"><p>I got that impression too, and it improved my understanding of cow pollinator's advice earlier.</p><p></p><p>The day before you posted that question I had updated four weeks worth of matings into the cow database I'm using, which I had last done 15 November, and checked the 'non-return' percentages. They had not moved one iota... so in my motley herd that gets 6 wks AI, 6 weeks bull most years there was no observable difference between first service and second service in conception rate.</p></blockquote><p></p>
[QUOTE="regolith, post: 886742, member: 9267"] I got that impression too, and it improved my understanding of cow pollinator's advice earlier. The day before you posted that question I had updated four weeks worth of matings into the cow database I'm using, which I had last done 15 November, and checked the 'non-return' percentages. They had not moved one iota... so in my motley herd that gets 6 wks AI, 6 weeks bull most years there was no observable difference between first service and second service in conception rate. [/QUOTE]
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From Drovers: Does AI cost or pay
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