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Originally Posted by timthevet So because one animal had xrays - it must have been them that caused the eggs to be sterile? I think you need to collect a bit more data - no statistical significance with that. I have heard of many turtle eggs that have been xrayed and were fine. |
We advised the Bronx Zoo in 2000 against using X-ray to determine pregnancy in their turtles as every clutch they produced was "sterilised" because they were x-rayed every season!! The first year they used palpation instead, they had 100% success.
It may only be turtles because higher factors are necessary to penetrate the bony shell. Also, every turtle we have heard of that was x-rayed and produced 'infertile' clutches was in the later stages of the pregnancy and this may have some relevance!
Craig