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Herford X Simmental
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<blockquote data-quote="Jeanne - Simme Valley" data-source="post: 154977" data-attributes="member: 968"><p>I do not know anything about Hfd pedigrees, but I do know about the diluter gene. It is a color/affecting gene - it is NOT a disease! It is a gene just like the horn gene. It is not truly EXPRESSED on red hided cattle - cattle can be dark red or light yellow and it does not mean they are or are not diluted red. BUT, on BLACK hided cattle it is DEFINATELY expressed - they will be chocolate, silver, grey, mousy brown, any black SHADES other than true BLACK. An animal carrying the gene may be homozygous diluted (two genes - which means EVERY calf would carry one gene) or heterozygous diluted (1 gene - 50/50 chance whether the offspring inherits the gene)</p><p>So, one animal that had one diluter gene (can not get a DNA test run yet) could possibly have NEVER passed it on (not realy likely but possible). Anyway, after a few generations of breeding to non-diluted cattle (which all of Hfts should be non-diluted) you PROBABLY don't still have the gene. BUT, you never can truly know unless you breed them to 10 homozygous BLACK cattle. If you get true black out of all 10 matings, than you should be safe to say the Hfd does not carry the diluter.</p><p>I picked the number 10 breedings, because that is what it takes to prove an animal is homozygous polled. (Homo Polled bred to 10 horned animals).</p><p>And, also, like it was said = you cannot get a "chocolate" calf out of RED genes - "chocolate" is a shade of BLACK. To get chocolate, one parent has to BE BLACK, besides inheriting the diluter gene.</p></blockquote><p></p>
[QUOTE="Jeanne - Simme Valley, post: 154977, member: 968"] I do not know anything about Hfd pedigrees, but I do know about the diluter gene. It is a color/affecting gene - it is NOT a disease! It is a gene just like the horn gene. It is not truly EXPRESSED on red hided cattle - cattle can be dark red or light yellow and it does not mean they are or are not diluted red. BUT, on BLACK hided cattle it is DEFINATELY expressed - they will be chocolate, silver, grey, mousy brown, any black SHADES other than true BLACK. An animal carrying the gene may be homozygous diluted (two genes - which means EVERY calf would carry one gene) or heterozygous diluted (1 gene - 50/50 chance whether the offspring inherits the gene) So, one animal that had one diluter gene (can not get a DNA test run yet) could possibly have NEVER passed it on (not realy likely but possible). Anyway, after a few generations of breeding to non-diluted cattle (which all of Hfts should be non-diluted) you PROBABLY don't still have the gene. BUT, you never can truly know unless you breed them to 10 homozygous BLACK cattle. If you get true black out of all 10 matings, than you should be safe to say the Hfd does not carry the diluter. I picked the number 10 breedings, because that is what it takes to prove an animal is homozygous polled. (Homo Polled bred to 10 horned animals). And, also, like it was said = you cannot get a "chocolate" calf out of RED genes - "chocolate" is a shade of BLACK. To get chocolate, one parent has to BE BLACK, besides inheriting the diluter gene. [/QUOTE]
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