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Breeding / Calving Issues
Breeding bull to daughters
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<blockquote data-quote="Lucky_P" data-source="post: 1822959" data-attributes="member: 12607"><p>I've done it - and would do it again. In a commercial herd, I'm of the opinion that, if you like the bull and what he brings to the table, why not extend his useful life by using him for more than 2-3 years, AND concentrate those desirable traits in his offspring. Nobody buying a stocker/feeder calf ever asks about pedigree... just breed (or the appearance of a certain breed.).</p><p>Of course, as others have stated - this works so long as there are no recessive genetic defects in the gene pool. </p><p></p><p>I have had experience with my very own personal Angus recessive genetic defect. </p><p>We purchased a yearling bull and used him for 2 years, then started using AI. The old bull was gentle, his daughters were great, steers were decent, so we kept him as a cleanup bull... until he was 10. He was pedigree-free of any of the genetic defects known at the time. However, it turns out that he was the 'founder' for the Sodium Channel Neuropathy defect, and over half of his daughters ended up being SCN carriers (makes me wonder if the SCN heterozygotes translated into something phenotypically that favored being selected to keep as a replacement heifer), so on the occasions that he bred one of these daughters (and a few granddaughters), a percentage of calves born were unsurvivable (unable to stand or nurse). Kept a SimAngus son and used him one year as a cleanup & heifer bull after the old bull went to town - and - wouldn't you know - he was a SCN carrier and sired defective calves out of daughters, granddaughters, and one great-granddaughter of his sire. </p><p>Still had a lot of those SCN carrier cows in the herd when we sold out, but had no more defective calves after we purchased a new natural service sire (Simmental), or from any of the AI sires (Angus, Simmental, Shorthorn, Braunvieh) that we used.</p></blockquote><p></p>
[QUOTE="Lucky_P, post: 1822959, member: 12607"] I've done it - and would do it again. In a commercial herd, I'm of the opinion that, if you like the bull and what he brings to the table, why not extend his useful life by using him for more than 2-3 years, AND concentrate those desirable traits in his offspring. Nobody buying a stocker/feeder calf ever asks about pedigree... just breed (or the appearance of a certain breed.). Of course, as others have stated - this works so long as there are no recessive genetic defects in the gene pool. I have had experience with my very own personal Angus recessive genetic defect. We purchased a yearling bull and used him for 2 years, then started using AI. The old bull was gentle, his daughters were great, steers were decent, so we kept him as a cleanup bull... until he was 10. He was pedigree-free of any of the genetic defects known at the time. However, it turns out that he was the 'founder' for the Sodium Channel Neuropathy defect, and over half of his daughters ended up being SCN carriers (makes me wonder if the SCN heterozygotes translated into something phenotypically that favored being selected to keep as a replacement heifer), so on the occasions that he bred one of these daughters (and a few granddaughters), a percentage of calves born were unsurvivable (unable to stand or nurse). Kept a SimAngus son and used him one year as a cleanup & heifer bull after the old bull went to town - and - wouldn't you know - he was a SCN carrier and sired defective calves out of daughters, granddaughters, and one great-granddaughter of his sire. Still had a lot of those SCN carrier cows in the herd when we sold out, but had no more defective calves after we purchased a new natural service sire (Simmental), or from any of the AI sires (Angus, Simmental, Shorthorn, Braunvieh) that we used. [/QUOTE]
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