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Cattle Boards
Breeding / Calving Issues
Ultrasound Due Dates
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<blockquote data-quote="diana55" data-source="post: 1299474" data-attributes="member: 12968"><p>I have used the same ultrasound technician for last 3 years and he is very accurate. Maybe a week or two each way but often depends on how early they are tested. He has said 4 weeks in calf and they are usually spot on. At about 14 weeks it has more variation. Over 20 weeks he just says heavy bred. In addition to natural mating, I also AI and implant embryos throughout year so I have cows calving most months and I can match up mating dates with what the techie says. I am happier with u/sound as palpation may cause abortion- maybe only a small chance but could be expensive. We don't test recips until 3 months after implantation.</p></blockquote><p></p>
[QUOTE="diana55, post: 1299474, member: 12968"] I have used the same ultrasound technician for last 3 years and he is very accurate. Maybe a week or two each way but often depends on how early they are tested. He has said 4 weeks in calf and they are usually spot on. At about 14 weeks it has more variation. Over 20 weeks he just says heavy bred. In addition to natural mating, I also AI and implant embryos throughout year so I have cows calving most months and I can match up mating dates with what the techie says. I am happier with u/sound as palpation may cause abortion- maybe only a small chance but could be expensive. We don't test recips until 3 months after implantation. [/QUOTE]
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