Tats & Tails, Part 1: Collecting a DNA Hair Sample
August 7th, 2011 by KimThis spring’s Dexter calves are growing beautifully & it’s now time to take care of some registration details. We had to get the heifers’ ears tattooed for ID as required by the ADCA, and also pull tail hair to send in for some DNA testing. Yesterday was the big day for the girls, so they were haltered & brought into the barn stall. We started with the DNA samples, since after tattooing everybody is an inky mess. If you’ve never done any DNA testing & aren’t sure what’s involved, read on. It’s not complicated, and can give you some important information about your cows.
What & Why We’re Testing
Trixie is a red heifer out of a red sire & a black dam. To register a calf as red, either both parents must be red or at least one must be tested & proven to not carry dun. Since neither of those is the case, Trixie must be tested to prove she is red. I’m also testing her for dun, to see if she also inherited Ladybell’s dun gene or not. I’m color testing Ebony as well…just because I like to know what color genes we’ve got to work with. She is black, and I know she’ll have a red gene from Rousseau, so it’s just a question of whether it’s an E+ or e, and whether or not she got Kiera’s dun gene. This way I’ll know what possible color calves I’ll be able to get out of these girls when they grow up. (more…)








