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Double Helix Brand: Symbol of DNA and indication of quality Registered Texas Longhorn cattle.

Double Helix Ranch

Specializing in the Genetics and Breeding
of Texas Longhorn Cattle

Double Helix Brand: Symbol of DNA and indication of quality Registered Texas Longhorn cattle.

E-mail David Hillis at doublehelix@att.net

Registered Texas Longhorn Cattle
Ranches near Johnson City, Pontotoc, and Dumont, Texas


D-H Cinco de Mayo, May 2012

D-H Cinco de Mayo
Horns, conformation, size, color, and disposition, all in one package

Herd sire of the Double Helix Ranch
(Photo courtesy of Harry W. Greene)

Fly Gap Spring 2010
Our ranch after an El Niño year...click here to see the same scene in 2011

Please see our individual pages for Texas Longhorn bulls, cows, heifers, steers, and newborn calves, as well as articles on the genetics of cattle coloration, the heritability of quantitative traits, inbreeding, cloning, selecting a Texas Longhorn herd sire, Texas Longhorn history, freeze branding, the effects of the El Niño cycle on Texas rainfall, and links to other information on Texas Longhorn cattle.

 Texas Longhorn Genetics

Questions about cloning Texas Longhorns? Click here for a balanced discussion of the
pros and cons of cloning

We specialize in studying and promoting the genetic traits that make Texas Longhorn cattle unique, interesting, and valuable

As an example of Texas Longhorn genetics, consider the inheritance of coat color. Texas Longhorns are known to be highly variable in color, and in the words of J. Frank Dobie they are “more varied than the colors of the rainbow.” But actually, all the colors of Texas Longhorns (and of virtually all mammals) are formed from various combinations of just two pigments: eumelanin (black) and phaeomelanin (red). More>>

E-mail or call us for information about purchasing and raising your own Texas Longhorn cattle, or check out our prices on mature cows, calves, heifers, steers, or herd sire prospects. Texas Longhorns do well in almost any climate, and are relatively free of problems with disease or calving difficulty. They are striking and beautiful animals, and can even be trained for riding!

E-mail us for more information

Contact:

David Hillis

 

(visitors since Dec. 21, 2002)
Cows | Bulls | Heifers | Calves | Horn length | Coloration | Inbreeding | Ranch sites | Brand explanation | Links