— The Yakzz Team

Living Diamonds Tibetan Yak Ranch

Lawrence Richards
40134 Farm RdPolson, MT 59860
406-210-2950

2015 NAYR Denver Presentation

The following is an explanation of the:

• The North American Yak Registry
• The Appendix Program
• Problems encountered with hybridization of yaks with cattle breeds
• Genetic testing developed with UC Davis for yak/cattle hybrid
screening

This PDF was adapted from a talk given by Lawrence Richards at the 2015 Members Meeting in Denver, Colorado.

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Genomic Research Presentation - 2018




The Generation Based Progression Registry Program

This is a 3 section presentation. Slides 1 thru 3 cover the Mechanics of The Generation Program. A detailed introduction was written by Larry Richards and communicated via IYAK Newsletter to the Membership.

Explain the limitations of the Appendix B Program:

Restricts the possible introduction of heterozygosity into the NAYR by requiring backcrossing to Foundati... Full article >

Color Inheritance of the Royal Yak - New Yak Times Vol. 1, No. 1, 1991

Published by Lawrence G. Richards in "The New Yak Times Vol.1 No.1 released on September 21, 1991 at YAKARAMA '91.


The "Royal Yak" is a very rare strain of Yak in North America. Approximately 10% of the total Yak population in North America. I believe the name "Royal Yak" is a misnomer applied by zealous North Americans and has no significance in Tibe - nor special connection with Tibetan Royalty.

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Color Inheritance in North American Yaks - The Grunting Ox, Vol. 1, No. 1

Published by Lawrence G. Richards, in The Grunting Ox, Vol.1 No.1 Oct.10, 2015.


Three colors are recognized in North American yaks: Native Black, Imperial and Golden. Native Blacks are black hided animals with a grey or brown muzzle. Some individuals will show a grey or grizzly dorsal stripe. Native blacks vary from a near dark black to brownish.

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Color Inheritance in North American Yaks with Imperial Inheritance Theory, 10/15/2010

Published by Lawrence G. Richards to the IYAK Website October 15, 2010

There are only a few colors in Fullblood yaks in North America and only three color patterns. Their inheritance is relatively simple but not so easy to explains.

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The New Yak Times, Volume 1, No. 2 - September, 1993

Capture the Imagination

Like the face that launched a thousand ships this wondrous lithograph of yaks on the Tibentan Plateau will capture the imagination of a nagtion of exotic animal breeders and launch a ten year breeding industry in North American and Europe.

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Living Diamonds Ranch History

At Living Diamonds Ranch we currently have 55 yaks in conjunction with Bill Martin of West Farms and have selectively bred Tibetan Yaks for 20 years. Our history with yaks has been central to the history of yaks in North America during that time and may be of interest to those presently raising yaks, but unfamiliar with us.

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Lake County Rancher Raises Prized Breeding Tibetan Yaks

POLSON – If you’re not sure what you’re looking at, the peaceful, shaggy creatures roaming the bucolic green pastures of Living Diamond Ranch resemble a bizarre, mutated cross of perhaps Scottish highland cattle and North American bison.

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