Freemartin

Quick Summary

A freemartin is a female that is born as a twin with a male and is sterile as a result of exposure to masculinizing hormones produced by the male in utero.
Price

$50 one test per animal

Additional Details

A freemartin is defined as a female that is born as a twin with a male and is sterile as a result of exposure to masculinizing hormones produced by the male. A connection between the two fetal circulatory systems develops early in gestation (anastomosis) and leads to the exchange of blood between the fetuses. Exposure to male hormones leads to underdevelopment of the female's reproductive tract. Over ninety percent of females born co-twin to male are infertile.

Turnaround Time
2-6 business days
Type of Sample
Blood

Species

References

Padula, A.M. (2005). The freemartin syndrome: an update. Animal Reproduction Science, 87, 93-109. doi: 10.1016/j.anireprosci.2004.09.008