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<blockquote data-quote="Anonymous" data-source="post: 17324"><p>> I have some cows that are 5/8</p><p>> Simmental and 3/8 Angus. They are</p><p>> bred to a full blooded Angus bull.</p><p>> Their calves would be considered</p><p>> F-1. Am I right about that.</p><p></p><p>I don't think you have it right yet. The resulting calves from your above described mating will be 5/16 Simmie and 11/16 Angus. I believe that just about everybody that uses the term F1 or "true F1" is referring to an animal that is the first generation cross of two purebreds, a 50/50 animal. For example a 100% Hereford crossed with a 100% Angus (the result of which is commonly referred to as a black baldie). Or a 100% Hereford crossed with a 100% Brahman (the result of which is commonly referred to in the Gulf Coast states as a "tigerstripe"). When you start crossing animals that are themselves crossbreds you simply have a "composite" that is not an F1 --- and many times indescriminate and/or poorly thought out crossing results in "trainwreck" cattle, so to speak.</p><p></p><p>Sometimes people refer to certain crossbred cattle incorrectly, to wit: a pure Brahman crossed with a pure Angus doesn't equal a "Brangus" (since a "true" Brangus is 3/8 Brahman and 5/8 Angus) but a lot of people see black and some ear or hump and immediately say Brangus. Then you can get into more academic issues, such as crossing a pure Angus with a pure Shorthorn ----many folks might refer to that as a Murray Grey, but others would say hell no, since they are not descended from the very small original Australian gene pool out of which arose the MG animal; even though, as I recall, the original MG's essentially were 50/50 Shorthorn/Angus that resulted from mating one particular pure Shorthorn cow with 8 or 9 different pure Angus bulls ( or maybe the other way around?)</p><p></p><p>Probably more than you wanted, and I hope I have it right as to what I have written --- if not I trust that Dun or somebody else will correct me.</p></blockquote><p></p>
[QUOTE="Anonymous, post: 17324"] > I have some cows that are 5/8 > Simmental and 3/8 Angus. They are > bred to a full blooded Angus bull. > Their calves would be considered > F-1. Am I right about that. I don't think you have it right yet. The resulting calves from your above described mating will be 5/16 Simmie and 11/16 Angus. I believe that just about everybody that uses the term F1 or "true F1" is referring to an animal that is the first generation cross of two purebreds, a 50/50 animal. For example a 100% Hereford crossed with a 100% Angus (the result of which is commonly referred to as a black baldie). Or a 100% Hereford crossed with a 100% Brahman (the result of which is commonly referred to in the Gulf Coast states as a "tigerstripe"). When you start crossing animals that are themselves crossbreds you simply have a "composite" that is not an F1 --- and many times indescriminate and/or poorly thought out crossing results in "trainwreck" cattle, so to speak. Sometimes people refer to certain crossbred cattle incorrectly, to wit: a pure Brahman crossed with a pure Angus doesn't equal a "Brangus" (since a "true" Brangus is 3/8 Brahman and 5/8 Angus) but a lot of people see black and some ear or hump and immediately say Brangus. Then you can get into more academic issues, such as crossing a pure Angus with a pure Shorthorn ----many folks might refer to that as a Murray Grey, but others would say hell no, since they are not descended from the very small original Australian gene pool out of which arose the MG animal; even though, as I recall, the original MG's essentially were 50/50 Shorthorn/Angus that resulted from mating one particular pure Shorthorn cow with 8 or 9 different pure Angus bulls ( or maybe the other way around?) Probably more than you wanted, and I hope I have it right as to what I have written --- if not I trust that Dun or somebody else will correct me. [/QUOTE]
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