male herman tortoise what size and weight should a 10/11 year be  ?

also my male  tortoise  was mating with all the felmale  this year  all of them laid eggs but no of them hatch and when  i broke them open a long time after the date they should of hatch.

   does this mean that my  male is not fertile 

 i hope i dont sound silly in  asking these things. oh one more thing how many times does he have too mate with the felmale too  make the eggs fertile

Hi, you can plot his size and weight on the Jackson Ratio to check if he is on course, here is the link http://www.tortoise-protection-group.org.uk/site/169.asp. But bear in mind that all tortoises grow at different rates.

Regarding the eggs, did you put them in an incubator and check the temperatures and humidity levels.  The eggs will only fertilise and grow if the conditions are spot on.  It could also be that the either the male or female is not sexually mature enough to be producing viable eggs/sperm.  Only time will tell, if and when you get more eggs.

Regards Vivienne