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New Mexico | tend to focus on reproduction traits.
Generally on cowherds, reproductive traits are 5 to 10 times more important to the bottom line than performance traits.
Areas with more geologic diviersity, generally much harsher climates tend to produce BETTER livestock ( all species ) due to the selection pressures Mother Nature dictates.
Some areas of the Old Country to the S, there's a "swoop horn" trait in the cattle. Cows there run on pretty rocky stuff, use those horns to actually flip the rocks over and eat the short grass which grows around the edges of where that rock was.
Other areas...there's what I call the dragon plant....has bunches of real nutritious blooms on top..say 5 to 8' up.
Native steers will work together on those...knock em down and eat the blooms.
MORE genetic diversity...due to some of the afore ( and elevation varients from 3,500 to 1,4000 ft ), also brings certain instinctive traits that go with those genetics.
Combine ALL the afore over time...since More is always More ( in genetics ) the livestock is simply BETTER that comes off those tougher enviros.
Old saying is that when you get all the supposed "mutt" bred out of em...then your going to start to have problems, actually tends to be true. MO.
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500# x - breed strs @1.42
