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<blockquote data-quote="Caustic Burno" data-source="post: 908377" data-attributes="member: 694"><p>The true idiocy here is you are giving up growth and hybred vigor on what cattlemen have been doing for years.</p><p>For what to pay an Association for papers in a very very small gene pool of "purebred" cattle when have literally thousands times thousands of the finest Angus and hereford bulls in the world to select. </p><p> </p><p>"What Determines theLevel of Heterosis?</p><p>The level of heterosis is determined by the degree of</p><p>genetic difference between the parent breeds. From a practical</p><p>standpoint, this means that the greater the difference between</p><p>two breeds, the greater the hybrid vigor exhibited by the cross.</p><p>A cross between an Angus and a Brahman gives more hybrid</p><p>vigor than a cross between an Angus and a Hereford. This also</p><p>explains why a 3/4 Angus, 1/4 Hereford will exhibit less hybrid</p><p>vigor than a 1/2 Angus, 1/2 Hereford — more of the genetic</p><p>material is different in a combination of 1/2, 1/2 than in 3/4, 1/4.</p><p>A crossbred that is 1/2 of breed A and 1/2 of breed B will</p><p>exhibit 100 percent of the possible heterosis, while a crossbred that</p><p>is 3/4 breed A and 1/4 breed B should exhibit 50 percent of the</p><p>possible heterosis between breeds A and B."</p></blockquote><p></p>
[QUOTE="Caustic Burno, post: 908377, member: 694"] The true idiocy here is you are giving up growth and hybred vigor on what cattlemen have been doing for years. For what to pay an Association for papers in a very very small gene pool of "purebred" cattle when have literally thousands times thousands of the finest Angus and hereford bulls in the world to select. "What Determines theLevel of Heterosis? The level of heterosis is determined by the degree of genetic difference between the parent breeds. From a practical standpoint, this means that the greater the difference between two breeds, the greater the hybrid vigor exhibited by the cross. A cross between an Angus and a Brahman gives more hybrid vigor than a cross between an Angus and a Hereford. This also explains why a 3/4 Angus, 1/4 Hereford will exhibit less hybrid vigor than a 1/2 Angus, 1/2 Hereford — more of the genetic material is different in a combination of 1/2, 1/2 than in 3/4, 1/4. A crossbred that is 1/2 of breed A and 1/2 of breed B will exhibit 100 percent of the possible heterosis, while a crossbred that is 3/4 breed A and 1/4 breed B should exhibit 50 percent of the possible heterosis between breeds A and B." [/QUOTE]
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