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Ultrasound
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<blockquote data-quote="Anonymous" data-source="post: 766"><p><br>: I've been ultrasounding all yearling bulls and<br>: heifers for 5 years now. Initially I was doing it<br>: because I felt I had a ribeye problem in my herd<br>: and was trying to sort it out (i.e. cull animals<br>: that did not meet 1" ribeye per hundred weight).<br>: Of course you have to watch that you don't reduce<br>: the frame of your animals by selecting only by<br>: ribeye measurment...you have to look at the<br>: yearling weight too. So 500 pounders may have a 6"<br>: ribeye but they are still culled! I use it for<br>: within herd comparison only, there is too much<br>: variation yet on who reads it and how the data<br>: is handled.<br>: For example, I had a bull on test (calved 3/12/98)<br>: he had an actual ribeye measurement of 13.5<br>: (weighed 1118) end of February at the test. I brought<br>: him home to use here. He was off feed, just<br>: pasture to condition him. When I ultrasounded the<br>: heifers and bulls that were kept at home I decided<br>: to run him through again (I was speculative of that<br>: high a measurement). Different technician, different<br>: software. May 7th reading 9.9 actual REA (1032lbs)!<br>: Well did he lose 4 inches of ribeye? Or is the variation<br>: that wide. I don't know. But using it for within herd<br>: I can safely use it because I know the animal. There<br>: were the same variations in rib fat and IM fat.<br>: Keep in mind what is important, I had bulls measure<br>: well but failed their semen test! No I can't get more<br>: money for them or the heifers but I am improving<br>: my herd.<p>Dear Deb,<br>I'm really sorry to hear about the variation in your ultrasound measurements. Most technicians are good, but a few are not. Please be sure to use only AUP certified technicians. We have passed a very thorough test. Keep on improving your herd - beauty is only skin deep!<p>Thanks,<br>Clare </p><p><br></p><p><br><hr size=7 width=75%><p></p><p></p><p></p><p> <a href="mailto:CRober86@aol.com">CRober86@aol.com</a></p></blockquote><p></p>
[QUOTE="Anonymous, post: 766"] <br>: I've been ultrasounding all yearling bulls and<br>: heifers for 5 years now. Initially I was doing it<br>: because I felt I had a ribeye problem in my herd<br>: and was trying to sort it out (i.e. cull animals<br>: that did not meet 1" ribeye per hundred weight).<br>: Of course you have to watch that you don't reduce<br>: the frame of your animals by selecting only by<br>: ribeye measurment...you have to look at the<br>: yearling weight too. So 500 pounders may have a 6"<br>: ribeye but they are still culled! I use it for<br>: within herd comparison only, there is too much<br>: variation yet on who reads it and how the data<br>: is handled.<br>: For example, I had a bull on test (calved 3/12/98)<br>: he had an actual ribeye measurement of 13.5<br>: (weighed 1118) end of February at the test. I brought<br>: him home to use here. He was off feed, just<br>: pasture to condition him. When I ultrasounded the<br>: heifers and bulls that were kept at home I decided<br>: to run him through again (I was speculative of that<br>: high a measurement). Different technician, different<br>: software. May 7th reading 9.9 actual REA (1032lbs)!<br>: Well did he lose 4 inches of ribeye? Or is the variation<br>: that wide. I don't know. But using it for within herd<br>: I can safely use it because I know the animal. There<br>: were the same variations in rib fat and IM fat.<br>: Keep in mind what is important, I had bulls measure<br>: well but failed their semen test! No I can't get more<br>: money for them or the heifers but I am improving<br>: my herd.<p>Dear Deb,<br>I'm really sorry to hear about the variation in your ultrasound measurements. Most technicians are good, but a few are not. Please be sure to use only AUP certified technicians. We have passed a very thorough test. Keep on improving your herd - beauty is only skin deep!<p>Thanks,<br>Clare <br> <br><hr size=7 width=75%><p> [email=CRober86@aol.com]CRober86@aol.com[/email] [/QUOTE]
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