Russian tortoise infertile eggs?

[OOOst16]

I cannot find this information anywhere!....so...can female russian tortoises lay infertile clutches like chameleons do? And if they do how often is it?

 

[kinyonga]

Haven't kept them...but this might help...
"if you notice one of the females tends to ignore the male, or maybe she lays all slugs (infertile eggs) one year, observing and recording these factors will help you adjust future breeding efforts"...so it sounds like they can...
http://www.reptilechannel.com/repti...zine/may-2010/breeding-russian-tortoises.aspx