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<blockquote data-quote="inyati13" data-source="post: 1055829" data-attributes="member: 17767"><p>Keith,</p><p>I took this from the AAA website. It is dated 8/14/13. The best understanding will require you to read it in its entirety.</p><p><a href="http://www.angus.org/Pub/DD/DDLetter08142013.html" target="_blank">http://www.angus.org/Pub/DD/DDLetter08142013.html</a></p><p></p><p>I am glad they made this statement, "With the onset of DD, it became clear that the discovery of genetic conditions will be a part of the future for all breeds of cattle." All species, races and breeds are treated equally when it comes to genetic defects. It is the nature of and risk of the business. It is not just angus. We hear more about angus because they are the most common breed. But defects are everywhere. My family learned the hard way. Our baby brother had a life threating stroke. His basilary artery in has brain is totally obstucted. He should be dead. We found out both mom and dad are carriers of Lieden Factor 5 Polymorphism mutatation that causes blood clots. There are 5 of us. We all had to be tested. Two came out homozygous positive for the condition and require blood thinner. Two came out heterozygous carriers and and I came out homozygous negative. I have always been lucky.</p><p></p><p>BTW: If you click the policy statement in the reference above you will see that they finally made clear that the DDA means "affected". This is what Ken was talking about. An animal which is homozygous positive but is normal. That sound like it is self exclusive but is not. It is an animal which has both genes for the mutation but did not develope the extra legs. I would speculate that it will take a crew of molecular biologist to explain the nature of this phenomena.</p></blockquote><p></p>
[QUOTE="inyati13, post: 1055829, member: 17767"] Keith, I took this from the AAA website. It is dated 8/14/13. The best understanding will require you to read it in its entirety. [url=http://www.angus.org/Pub/DD/DDLetter08142013.html]http://www.angus.org/Pub/DD/DDLetter08142013.html[/url] I am glad they made this statement, "With the onset of DD, it became clear that the discovery of genetic conditions will be a part of the future for all breeds of cattle." All species, races and breeds are treated equally when it comes to genetic defects. It is the nature of and risk of the business. It is not just angus. We hear more about angus because they are the most common breed. But defects are everywhere. My family learned the hard way. Our baby brother had a life threating stroke. His basilary artery in has brain is totally obstucted. He should be dead. We found out both mom and dad are carriers of Lieden Factor 5 Polymorphism mutatation that causes blood clots. There are 5 of us. We all had to be tested. Two came out homozygous positive for the condition and require blood thinner. Two came out heterozygous carriers and and I came out homozygous negative. I have always been lucky. BTW: If you click the policy statement in the reference above you will see that they finally made clear that the DDA means "affected". This is what Ken was talking about. An animal which is homozygous positive but is normal. That sound like it is self exclusive but is not. It is an animal which has both genes for the mutation but did not develope the extra legs. I would speculate that it will take a crew of molecular biologist to explain the nature of this phenomena. [/QUOTE]
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