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Cattle Boards
Breeding / Calving Issues
Scrotal Circumference
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<blockquote data-quote="WalnutCrest" data-source="post: 1292123" data-attributes="member: 21715"><p>+bajillion</p><p></p><p>*************</p><p></p><p>Same bull calf on creep and grain will have different scrotal than if he were on poor pastures and only poor pastures (lots of fat can be deposited in the testicles of bulls on a high-starch diet.</p><p></p><p>And, yes, a big scrotal on a big bull is quite a different circumference than a big scrotal on a smaller bull.</p><p></p><p>My preference is to see contemporary bull calves ranked in a few ways:</p><p></p><p>1) Current weight as a % of projected mature weight (this is calculated by taking the current hip height, and using standard frame score charts, to project to a mature frame score (and therefore a projected mature weight) for each bull calf, and then calculating the percentage of their mature weight they currently have (current weight / projected mature weight) --- the higher the percentage, the faster the maturing)</p><p></p><p>2) Current scrotal measurement as a % of projected mature weight.</p><p></p><p>The best bull in any given group should be at/towards the top of both lists. IMO, any bull below the half-way mark of either list should be steered; the ones that barely make it should be sold for only a little bit above commodity prices.</p></blockquote><p></p>
[QUOTE="WalnutCrest, post: 1292123, member: 21715"] +bajillion ************* Same bull calf on creep and grain will have different scrotal than if he were on poor pastures and only poor pastures (lots of fat can be deposited in the testicles of bulls on a high-starch diet. And, yes, a big scrotal on a big bull is quite a different circumference than a big scrotal on a smaller bull. My preference is to see contemporary bull calves ranked in a few ways: 1) Current weight as a % of projected mature weight (this is calculated by taking the current hip height, and using standard frame score charts, to project to a mature frame score (and therefore a projected mature weight) for each bull calf, and then calculating the percentage of their mature weight they currently have (current weight / projected mature weight) --- the higher the percentage, the faster the maturing) 2) Current scrotal measurement as a % of projected mature weight. The best bull in any given group should be at/towards the top of both lists. IMO, any bull below the half-way mark of either list should be steered; the ones that barely make it should be sold for only a little bit above commodity prices. [/QUOTE]
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