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<blockquote data-quote="HerefordSire" data-source="post: 380286" data-attributes="member: 4437"><p>Herefordsire, the % inbreeding is calculated from parentage records or pedigrees not bloodtests.</p><p></p><p><strong>In English, it is not uncommon to represent blood line, or heritage, of lineage, as "blood". I agree with you.</strong></p><p></p><p>I am sure that at some stages "outside genetics" was used. The jump from frame 1 to frame 10 was just to sudden to be believeable in my opinion. But if that information wasn't disclosed it will not affect the % inbreeding theoretically. </p><p></p><p><strong>The reason I posted the abstract is because it exploded in front of my eyes. In other words, it is very hard to change the percentage inbreeding magnitude of that many individuals in such a short time period. If I am not mistaken, the peak is almost equivalent to 12.5% inbreeding which is like the progeny of two half-siblings and siblings would be 25%. The 11.? percent inbreeding number is very high...and then all of the sudden, she goes into a tail spin and bottoms in 1990.</strong></p><p></p><p>Traditionally herefords were in the frame 4-5 range, then reduced to miniature size, how they managed to even reach a frame 10 is beyond me. I'm not sure single trait selection alone can achieve that.</p><p></p><p><strong>The small to large frame number appears like is an equilibrium force or a springing reaction to counter opposing forces (..equal and opposite force..) as the result of specific genetics injected in the year 1965, or there abouts.</strong></p><p></p><p>I know this is a touchy subject, would love to hear more opinions from other hereford breeders</p><p></p><p><strong>If something unethical happened, I think there are several people with fathers and grandfathers that may have information but they are tight lipped as their livlihood may depend on it even though they could probably be thrust on Fox, CNN, ABC, NBC, CBS, and write a book or two, etc. They would become millionaires very quickly.</strong></p></blockquote><p></p>
[QUOTE="HerefordSire, post: 380286, member: 4437"] Herefordsire, the % inbreeding is calculated from parentage records or pedigrees not bloodtests. [b]In English, it is not uncommon to represent blood line, or heritage, of lineage, as "blood". I agree with you.[/b] I am sure that at some stages "outside genetics" was used. The jump from frame 1 to frame 10 was just to sudden to be believeable in my opinion. But if that information wasn't disclosed it will not affect the % inbreeding theoretically. [b]The reason I posted the abstract is because it exploded in front of my eyes. In other words, it is very hard to change the percentage inbreeding magnitude of that many individuals in such a short time period. If I am not mistaken, the peak is almost equivalent to 12.5% inbreeding which is like the progeny of two half-siblings and siblings would be 25%. The 11.? percent inbreeding number is very high...and then all of the sudden, she goes into a tail spin and bottoms in 1990.[/b] Traditionally herefords were in the frame 4-5 range, then reduced to miniature size, how they managed to even reach a frame 10 is beyond me. I'm not sure single trait selection alone can achieve that. [b]The small to large frame number appears like is an equilibrium force or a springing reaction to counter opposing forces (..equal and opposite force..) as the result of specific genetics injected in the year 1965, or there abouts.[/b] I know this is a touchy subject, would love to hear more opinions from other hereford breeders [b]If something unethical happened, I think there are several people with fathers and grandfathers that may have information but they are tight lipped as their livlihood may depend on it even though they could probably be thrust on Fox, CNN, ABC, NBC, CBS, and write a book or two, etc. They would become millionaires very quickly.[/b] [/QUOTE]
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