Here are remarks from previous SP discussions that support the statement that 80C has no infusion of non-Shorthorn blood. I saw the printout of the animals in the DNA study mentioned in the second post, and 80C was square in the middle of the Native group. I remember because I wrote it down so I could look for him in pedigrees to see how "pure" they were. But every day I drift father from considering "purity" relevant to the development of specialized genotypes for specialized purposes. On the one hand, racial purity seems like a dead end. On the other hand, what is a species other than a pure genotype?
When we look at a herd of gazelle or deer, aren't they all "peas on a pod"?
Is this due to line breeding under the name of natural selection? More likely is that evolution constantly prunes extreme individuals from the edges of phenotypic variation. The average form may change, but probably not by the instant superiority of novel types. Forms change in relation to changes in environment. Such may be the case with infusions of "impure blood" to established breeds.
Man made the first breed when he robbed an animal of its wild relationship to food and reproduction. I begin to see the differentiation of breeds not in terms of their genetic distance from one another, but in terms of degrees of genetic impoverishment.
http://www.steerplanet.com/bb/the-big-show/old-horned-shorthorn-bulls-semen/15/
Re: old horned shorthorn bulls semen
« Reply #19 on: January 03, 2012, 10:14:24 PM »
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Just visited with Bert Moore on a similar issue. If GrousePark wants to keep his native status many of the Irish bulls (improver, leader, etc.) aren't accepted because their pedigrees came over with only one generation and they can't be traced to the coates herd book. As you can imagine this really limits the bulls you can use. Eionmor Mr Gus 85C is native. And it appears that Mr Gus 80C and Mr Gus 30B maybe native also. Dr. Moore is going to research that for me.
http://www.steerplanet.com/bb/the-big-show/native-bulls-from-50's-and-60's/
Re: Native - Shorthorn Bulls from 50's and 60's
« Reply #10 on: August 22, 2014, 05:20:55 PM »
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I have had some conversations about Native Shorthorns with Roy Lovaas. In fact we actually did some DNA studies comparing Shorthorn, Milking Shorthorn, Native Shorthorn, Irish-influenced Shorthorn, and Lincoln Red.
http://steakgenomics.blogspot.com/2014/08/applying-new-technologies-to.html
The article was originally published in the "Lincoln Letter", but it is no longer online, so I posted a copy on my blog