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

Turnaround Time
At least 15 business days; may be delayed beyond 15 business days if sample requires additional testing, or a new sample is requested.
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.

Type of Sample
Blood - 8-10 mL of whole blood in an EDTA purple top, ship overnight, avoid shipping over weekends and holidays.

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