Why infertile eggs

[francesco]

Hi everyone,
my pleuros used to mate and lay hundreds of eggs but not even one hatched.They all went mouldy.This happened for several times in 6 months.Has anyone had the same problem?Could the animals be sterile,maybe for excessive inbreeding?

This UFO emoticon is soo cool,I can't stop myself from adding them to the post!

 

[leonardo]

Hi Francesco!
I have several Pleurodeles and every time they bred this year, all the eggs were infertile...only ONE (!!!) hatched in about 300 eggs!
bye
Leo