Originally Posted by faye
SHmurmur - apparently the weight in the uterous creates aphantom pregnancy.
Anyway It DOES work. Infact it is completly mainstream here and done regularly to mardy mares or mares who's seasons are affecting thier competition results.
They are essentialy an IUD for horses.
It doesn't work that way, there has to be a chemical reaction. There is nothing to prevent the killing of the CL and how does the marble stop the secretion of pgf2 alpha?