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Cattle Boards
Breeding / Calving Issues
How accurate should I expect ultrasound to be?
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<blockquote data-quote="Ozhorse" data-source="post: 1166557" data-attributes="member: 18575"><p>Just for interest I calculated the average between the estimated vs the actual date of the 30 that have calved so far. The average number of days earlier than estimated came in at about 26 days with only 4 on time or early and the majority of the rest about 3 weeks early, but 8 of them 40 to 56 days earlier.</p><p></p><p>So fairly consistent on my gut feel, which was I can expect the calves three weeks earlier than calculated.</p><p></p><p>I think I might just give the estimated vs actuals in a spreadsheet next time they are here. I think I might ask for the heifers or other poorer condition young cattle to be checked for twinning also as the big old ladies can handle it, but the young ones can come a wreck.</p></blockquote><p></p>
[QUOTE="Ozhorse, post: 1166557, member: 18575"] Just for interest I calculated the average between the estimated vs the actual date of the 30 that have calved so far. The average number of days earlier than estimated came in at about 26 days with only 4 on time or early and the majority of the rest about 3 weeks early, but 8 of them 40 to 56 days earlier. So fairly consistent on my gut feel, which was I can expect the calves three weeks earlier than calculated. I think I might just give the estimated vs actuals in a spreadsheet next time they are here. I think I might ask for the heifers or other poorer condition young cattle to be checked for twinning also as the big old ladies can handle it, but the young ones can come a wreck. [/QUOTE]
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How accurate should I expect ultrasound to be?
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