> 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.
You are correct.The original mating was between a particular roan shorthorn cow and various aberdeen angus bulls that always resulted in a "grey" calf.
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