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Breeding / Calving Issues
Breeding bull to daughters
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<blockquote data-quote="Warren Allison" data-source="post: 1822867" data-attributes="member: 40587"><p>No. genetic defects, like the dwarfism , underbite etc in those longhorns are recessive. If they were dominant, then all Longhorns would have it. What happened, most likely, was that a cow or two, or maybe a bull or two, in his original herd, were products of breeding one of the defective minis with a normal LH. The defects being recessive, none of the defects were exhibited in these cattle, bur they were heterazygous...carried one copy of the defective genes. and the way he raises them...all in one big ole pasture with 2 and 3 generations all breeding each other, two of those heterazygous "normal" LHs had a underbite, knock kneed dwarf calf. And when those defective calves grew up and bred with another Heterazygous normal LH, etc, etc . , there was a 75% chance the calf would be defective, and if two of the defective ones breed, there ia 1 199% chancve the reuklting calf wil be defective. Think if the defective genes as the red color gene in cattle, and the normal genes as the black color gene. It works the same way. Another triat that showed up in these defective mini LHs, was a forelock. Not as full as a horses, but it looked like a bad toupe! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Warren Allison, post: 1822867, member: 40587"] No. genetic defects, like the dwarfism , underbite etc in those longhorns are recessive. If they were dominant, then all Longhorns would have it. What happened, most likely, was that a cow or two, or maybe a bull or two, in his original herd, were products of breeding one of the defective minis with a normal LH. The defects being recessive, none of the defects were exhibited in these cattle, bur they were heterazygous...carried one copy of the defective genes. and the way he raises them...all in one big ole pasture with 2 and 3 generations all breeding each other, two of those heterazygous "normal" LHs had a underbite, knock kneed dwarf calf. And when those defective calves grew up and bred with another Heterazygous normal LH, etc, etc . , there was a 75% chance the calf would be defective, and if two of the defective ones breed, there ia 1 199% chancve the reuklting calf wil be defective. Think if the defective genes as the red color gene in cattle, and the normal genes as the black color gene. It works the same way. Another triat that showed up in these defective mini LHs, was a forelock. Not as full as a horses, but it looked like a bad toupe! :) [/QUOTE]
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