Animal related

Cattlemen's Texas Longhorn Conservancy

aka CTLC

Tarpley, TX


We facilitate funding of educational endeavors that promote conservation of traditional Texas Longhorn genetics and engage in scientific and historical research, education and other charitable purposes associated with Texas Longhorn cattle.

Ruling Year



Mrs. Deborah Davis

Co Principal Officer

Mr. Tim Aycock

Main Address

P.O. Box 36

Tarpley, TX 78883 USA


Rare breed conservation





Cause Area (NTEE Code)

Alliance/Advocacy Organizations (D01)

Biological & Life Sciences (U50)

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SOURCE: Self-reported by organization

Conservation Outreach

DNA Project

Texas History & Social Science Studies


Ark of Taste

Livestock Conservancy Critically Endangered List

Where we work

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1. We seek to genetically define the old-time Texas Longhorn, to assure conservation of those genetic markers. 2. We educate the public on the value of these heritage genetics and why conservation is critical. 3. We provide an on-line library of criollo breeds research publications.

1. We are working with the Veterinary Genetics Laboratory at the University of California, Davis to build a conservation genetics control database from which to compare animals for qualification. This data in combination with the 500+ SNP genotypes we have assembled using the Illumina 50K bead chip at GeneSeek will be used to build a comprehensive analysis capable of identifying indicine and taurine introgression. 2. We use our website to make available to educators curricula for all three levels of public schools and link research documents for students of higher educations. Our website and YouTube channel provide historical materials of interest to all ages.

Our board consists of members with a diverse knowledge base and networks reaching many sectors. We all share the love of this living legend and desire to preserve this dynamic piece of history for generations to come. We work with leading geneticists in the field and are assembling a collection of conservation semen to ensure the ​future availability of valuable genetics.

Our progress is measured by numbers of individual animals identified to possess conservation genetics and by breakthroughs in analysis development.

Animals our organization identified as historically correct were discovered by the Veterinary Genetics Laboratory at the ​University of California, Davis to possess a new Y-haplotype never before seen by researchers in criollo genetics in all counties. The haplotype is appropriate for Texas Longhorns and may indicate evidence of traits unique to the breed derived by natural selection. We continue to seek the right person or organization to develop an algorithm for us that uses the genetic markers assembled from mitochondrial profiles and the indicine percentages from our current SNP analysis to map individual animals’ origin percentages as have been developed for humans and dogs. In preparation for creating a documentary about the Texas longhorn and the people who raise them, we filmed interviews of four long-time breeders that record their memories of growing up on Texas ranches. Excerpts of these interviews were made into a 15-minute educational video.

External Reviews

Affiliations & Memberships

Slow Foods USA 2015


Cattlemen's Texas Longhorn Conservancy

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The people, governance practices, and partners that make the organization tick.

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SOURCE: Self-reported; last updated 10/01/2019


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