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<blockquote data-quote="Aaron" data-source="post: 736388" data-attributes="member: 1682"><p>I am familiar with the Hereford history, so I will use it as the example.</p><p></p><p>Line breeding to the point of inbreeding was the cause, and dwarfism is a horror that was caused by it. I have the '56 and '57 American Hereford Journal reference issues on hand and can tell you it is just a handful of pedigrees across the whole magazine (which is about 2 inches thick). Now not everyone jumped in. There are a handful of operations in those books that did maintain moderate (much larger) sized Herefords. Not everyone jumps on the same bandwagon.</p><p></p><p>Everything changes. The original Hereford cows of the 1700's used to have an average weight of 3000 lbs and the bulls 4000 lbs. Linebacks and mottle faces were common. Polled Herefords didn't exist. About 1903, one fellow in the US sent out surveys to Hereford breeders asking about the incidence of genetic 'hornless freaks' in the US herd. In total, there were about 1500. He bought some of these cattle and started the Polled Hereford breed.</p><p></p><p>Jump to the 30's-60's anyone who was anyone in the breeding world went small. Some didn't.</p><p></p><p>Nobody is going to say that Simmental and Red Holstein influence did not enter some genetic lines of the Hereford world in the past. But to say that it was the entire source of many changes to the Hereford breed would be inaccurate. It didn't take long for truth to be known about 'suspect' bulls, and many never reached any significance (in terms of daughters in production) because of it. Real breeders deal with the hand they are dealt. Fly-by-night breeders will cheat to get to where they want to be and more often than not, pay the consequences for it. :cowboy:</p></blockquote><p></p>
[QUOTE="Aaron, post: 736388, member: 1682"] I am familiar with the Hereford history, so I will use it as the example. Line breeding to the point of inbreeding was the cause, and dwarfism is a horror that was caused by it. I have the '56 and '57 American Hereford Journal reference issues on hand and can tell you it is just a handful of pedigrees across the whole magazine (which is about 2 inches thick). Now not everyone jumped in. There are a handful of operations in those books that did maintain moderate (much larger) sized Herefords. Not everyone jumps on the same bandwagon. Everything changes. The original Hereford cows of the 1700's used to have an average weight of 3000 lbs and the bulls 4000 lbs. Linebacks and mottle faces were common. Polled Herefords didn't exist. About 1903, one fellow in the US sent out surveys to Hereford breeders asking about the incidence of genetic 'hornless freaks' in the US herd. In total, there were about 1500. He bought some of these cattle and started the Polled Hereford breed. Jump to the 30's-60's anyone who was anyone in the breeding world went small. Some didn't. Nobody is going to say that Simmental and Red Holstein influence did not enter some genetic lines of the Hereford world in the past. But to say that it was the entire source of many changes to the Hereford breed would be inaccurate. It didn't take long for truth to be known about 'suspect' bulls, and many never reached any significance (in terms of daughters in production) because of it. Real breeders deal with the hand they are dealt. Fly-by-night breeders will cheat to get to where they want to be and more often than not, pay the consequences for it. :cowboy: [/QUOTE]
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