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Breeding a crossbred bull question?
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<blockquote data-quote="WalnutCrest" data-source="post: 1364010" data-attributes="member: 21715"><p>Not arguing what it says on the website ... I just know this is a common thing in many breeds (Gelb, Lim, etc.).</p><p></p><p>The analysis I went through above is one reason when I was deciding where to start with cattle, I didn't go with any breeds that have that sort of 'breed up to fullblood' program that equates a 7/8ths animal as being equivalent to a fullblood. I didn't want to be in a position to try to explain to a client why the 67% bull is really a 'fullblood'. I could never wrap my head around honestly selling heterosis if I wasn't breeding fullbloods and (what I call 'honest F1s' --- the offspring of two separate fullblood parents).</p><p></p><p>This sort of analysis is another reason I pushed the Aubrac association to require a legit 90% Aubrac blood (per the pedigree where the actual Aubrac percentage of every animal preceding the calf is used to determine the Aubrac percentage of the offspring) to get to purebred status ... so, in the case of the 76.6% 'fullblood' bull being used on mutt cows to get to a 67.0% 'fullblood' animal, none of those animals would even make the grade as 'purebred' Aubrac (90-99%), much less 'fullblood' Aubrac (100%).</p><p></p><p>Anyhow, I'll step off my soap-box now.</p></blockquote><p></p>
[QUOTE="WalnutCrest, post: 1364010, member: 21715"] Not arguing what it says on the website ... I just know this is a common thing in many breeds (Gelb, Lim, etc.). The analysis I went through above is one reason when I was deciding where to start with cattle, I didn't go with any breeds that have that sort of 'breed up to fullblood' program that equates a 7/8ths animal as being equivalent to a fullblood. I didn't want to be in a position to try to explain to a client why the 67% bull is really a 'fullblood'. I could never wrap my head around honestly selling heterosis if I wasn't breeding fullbloods and (what I call 'honest F1s' --- the offspring of two separate fullblood parents). This sort of analysis is another reason I pushed the Aubrac association to require a legit 90% Aubrac blood (per the pedigree where the actual Aubrac percentage of every animal preceding the calf is used to determine the Aubrac percentage of the offspring) to get to purebred status ... so, in the case of the 76.6% 'fullblood' bull being used on mutt cows to get to a 67.0% 'fullblood' animal, none of those animals would even make the grade as 'purebred' Aubrac (90-99%), much less 'fullblood' Aubrac (100%). Anyhow, I'll step off my soap-box now. [/QUOTE]
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