Our veterinarian uses the hydraulic piston. With the square centimeter of the pelvis, exact age, and her exact weight, we can estimate very accurately her birthing tolerance for pounds of calf when she calves in ten months or before her second birthday.
Pelvic size is highly heritable and is considered along with the heifers weight and age.
Heifers are available for sale prior to breeding in April, and after breeding and ultrasound pregnancy exams in July. The heifer's veterinarian breeding-soundness exam includes tract development, breeding potential, condition, and pelvic measurements for birth tolerance considerations for when she has her first calf at two years of age.