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Breeding / Calving Issues
Breeding bull to daughters
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<blockquote data-quote="Ridgetop" data-source="post: 1822756" data-attributes="member: 38751"><p>Inbreeding (father x daughter, sibling x sibling) and linebreeding (2nd cousins, etc.) are all tools to reproduce the best traits. You have to know what faults your bull has or produces and what faults the cows have. You shouldn't breed related animals with the same or similar flaws to each other related or not. When doing close breeding you have to know the bloodlines (preferably for several generations) that you are using in order to be safe using inbreeding since a genetic flaw from several generations back could show up if it meets the same gene in a new breeding. Inbreeding and strong linebreeding has been used for many years to establish new breeds, establish certain traits, etc. It is why some bloodlines have a reputation for producing heavy muscling, milkiness, low birth weights, etc. These were all selected for using inbreeding and linebreeding. </p><p></p><p>Breeders use this tool to produce animals (stud animals) that are dominant for certain traits. I have used both linebreeding and inbreeding in many species with excellent results. It will intensify all genetic traits, both good and bad. By intensifying the good traits is how breeders have gotten better animals over the years. The animals who produce bad traits are culled from the breeding program. However, you have to know the flaws in your animals as well as the good points to effectively use this method.</p><p></p><p> If you have used this bull successfully, he is not related tightly to the cows, and you like what he has produced in daughters, go ahead and use him on those daughters again. You should be safe for the first generation. Be sure to cull heavily when selecting replacement heifers from this group. If you like these first cross heifers and want to retain them for replacements, you should bring in an outcross bull to use on them. If you don't want to buy or can't afford to buy another bull this year, you can breed to his daughters and granddaughters for another year. All offspring from the granddaughter cross should be terminal and sold. Replace the bull next year with an outcross. </p><p></p><p>This holds true for linebreeding when you get too tight in your pedigrees. When inbreeding and linebreeding you need to realize that if those crosses turn up genetic problems you must sell all the offspring.</p></blockquote><p></p>
[QUOTE="Ridgetop, post: 1822756, member: 38751"] Inbreeding (father x daughter, sibling x sibling) and linebreeding (2nd cousins, etc.) are all tools to reproduce the best traits. You have to know what faults your bull has or produces and what faults the cows have. You shouldn't breed related animals with the same or similar flaws to each other related or not. When doing close breeding you have to know the bloodlines (preferably for several generations) that you are using in order to be safe using inbreeding since a genetic flaw from several generations back could show up if it meets the same gene in a new breeding. Inbreeding and strong linebreeding has been used for many years to establish new breeds, establish certain traits, etc. It is why some bloodlines have a reputation for producing heavy muscling, milkiness, low birth weights, etc. These were all selected for using inbreeding and linebreeding. Breeders use this tool to produce animals (stud animals) that are dominant for certain traits. I have used both linebreeding and inbreeding in many species with excellent results. It will intensify all genetic traits, both good and bad. By intensifying the good traits is how breeders have gotten better animals over the years. The animals who produce bad traits are culled from the breeding program. However, you have to know the flaws in your animals as well as the good points to effectively use this method. If you have used this bull successfully, he is not related tightly to the cows, and you like what he has produced in daughters, go ahead and use him on those daughters again. You should be safe for the first generation. Be sure to cull heavily when selecting replacement heifers from this group. If you like these first cross heifers and want to retain them for replacements, you should bring in an outcross bull to use on them. If you don't want to buy or can't afford to buy another bull this year, you can breed to his daughters and granddaughters for another year. All offspring from the granddaughter cross should be terminal and sold. Replace the bull next year with an outcross. This holds true for linebreeding when you get too tight in your pedigrees. When inbreeding and linebreeding you need to realize that if those crosses turn up genetic problems you must sell all the offspring. [/QUOTE]
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