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<blockquote data-quote="smnherf" data-source="post: 481401" data-attributes="member: 3235"><p>Interesting topic. Not just giving up weaning weight but what about giving up virility in your bulls in order to get the higher IMF score?</p><p></p><p>Time and time again, my bulls that are out running around bellering at the cows/heifers across the fence seem to have the lowest ultrasound IMF score. It is a well known fact that testosterone is negatively correlated to IMF so aren't we tending to select for lower verility bulls by selecting for a higher ultrasound IMF score? </p><p></p><p></p><p></p><p>Brian</p></blockquote><p></p>
[QUOTE="smnherf, post: 481401, member: 3235"] Interesting topic. Not just giving up weaning weight but what about giving up virility in your bulls in order to get the higher IMF score? Time and time again, my bulls that are out running around bellering at the cows/heifers across the fence seem to have the lowest ultrasound IMF score. It is a well known fact that testosterone is negatively correlated to IMF so aren't we tending to select for lower verility bulls by selecting for a higher ultrasound IMF score? Brian [/QUOTE]
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