UV level

[Shelled Lady]

Originally Posted by EJ

Well... there is a layer of blood vessels just underneath the scutes... between the scutes and the bony shell. I really don't know how much UVB penetrates the scutes but I believe there was an anecdotal study of this. Regardless... I believe that UVB does have an effect through the tortoise shell.

Can you offer any other input?

Not really, except that horn is porous, so small amounts may get through as in heating up of the carapace. As far as I know as in (Physics) only a few hours aweek of sun is required.

[EJ]

No... the keratin layer is not porous. You need to stop using the TT as a resource. Biology would be the resource for the amount of UVB required to produce the D3 needed to metabolize calcium.

Originally Posted by Shelled Lady

Not really, except that horn is porous, so small amounts may get through as in heating up of the carapace. As far as I know as in (Physics) only a few hours aweek of sun is required.

[Shelled Lady]

Quote......
No... the keratin layer is not porous. You need to stop using the TT as a resource.
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You said it not me. I am not using the TT for information.

[Shelled Lady]

So what can you tell us about the Keritin of the tortoise shell from your experience?

[EJ]

Once again... it is layed down in layers from the bone. It is also layed down on the annular edges of the scutes. It is none porous once it is layed down.

Originally Posted by Shelled Lady

So what can you tell us about the Keritin of the tortoise shell from your experience?