Steer Planet - Show Steers and Club Calves Forum

I've been told by a vet that 97 % or more of the heifer twins to a bull are free martins.

The vast majority of heifer to bull twins are free martins, ie missing some or all of the important parts needed for breeding - there are several ways to determine if she is a free martin - there is the "test tube test", or you can wait until she is of sufficient size and either palpate or ultrasound her. There is a blood test that looks for male cells in the heifers blood, but all that tells you is that there was mixture of blood btwn the heifer and bull calf in utero - doesn't tell you anything about what she does or doesn't have.

How do the vets test her?

o gotcha. Thanks everyone!

We have used a bic  pen for years-  on 2-7 day olds insert pen in vulva if you hit resistance before you run out of pen no good

okay well its to late for the pen test. and she has good hair and is growing great but she dosn't have a lot of hair around the vulva....just the normal