Texas Longhorn Cattle at the Double Helix Ranch

	Double Helix Ranch Specializing in the Genetics and Breeding of Texas Longhorn Cattle
	E-mail David Hillis at DoubleHelixRanch@gmail.com

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

D-H Cinco de Mayo, May 2015

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

Herd sire of the Double Helix Ranch

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

E-mail: DoubleHelixRanch@gmail.com

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>>