The DNA Test Mistakes Every Cattle Owner Makes - With Stefanie Oppenheim, UC Davis VGL

If you've ever sent off a hair sample and wondered if you were doing it right — this episode is going to stop you in your tracks. Lori and Taylor sit down with Stefanie Oppenheim, animal scientist and senior analyst at the UC Davis Veterinary Genetics Laboratory, to break down everything Highland and mini Highland owners need to know about genetic testing — from how to pull hair correctly to what those colour results actually mean.This is one of the most practically useful episodes the show has done. Whether you're testing for chondro, coat colour, polled, or free martin, Stefanie walks you through exactly what the lab needs, why it matters, and what mistakes people make every single day.Key TakeawaysAlways pull hair from the tail switch and never cut it — the DNA is in the root bulb, not the shaft.Send both the MC1R and dilution tests to get a complete picture of coat colour. Buying semen? Ask for the bull's VGL case number before you breed anything. A free martin test coming back positive doesn't automatically mean the heifer is infertile — always work with your vet. DNA on file at VGL is a permanent fingerprint — it can identify lost animals, verify parentage and protect buyers.Episode HighlightsStefanie reveals the most common mistake breeders make when submitting hair samples — and it's an easy fix. The team digs into chondrodysplasia, brindle genetics, polled versus scurred, and what a free martin result really means. Taylor raises the question of DNA verification for high-value semen purchases — and Stefanie's answer is something every mini Highland breeder should hear. Lori admits in real time what she's been doing wrong.Timestamps00:01 — Welcome & intro to UC Davis VGL 00:59 — Stefanie's background in animal science and genetics 05:13 — How to pull and submit hair samples correctly 07:28 — Why root bulbs matter and how many hairs to send 09:32 — Labelling, case numbers and avoiding mix-ups 14:45 — Why uploading a photo with your sample helps 16:18 — DNA as a permanent identity fingerprint 20:47 — Semen purchases, AI and DNA verification 34:36 — Coat colour testing: MC1R, dilution and why you need both 37:13 — Chondrodysplasia and the Dexter connection in minis 41:21 — Brindle genetics explained 58:28 — Polled versus horned versus scurred 01:02:48 — Free martin testing: what the result really meansOrder cattle genetic tests at vgl.ucdavis.eduFollow us on social media so you don't miss out on any advice, auction updates, or crazy farm stories!Find us on Facebook: Horns N Hooves Instagram: @hornsnhoovesauctionpodcast TikTok: @Hornsnhoovespodcast Website: hornsnhoovesauction.comProduction Credit: Edited and produced by @the32collective_ / https://www.the32collective.co/