so few eggs, relatively, 4 a few days -- mystery solved!

[aart]

Yeah, the store is even called Eggcetera! Is that from cuttlefish. I've seen and handled those bones. I bet they'd be more readily assimilable and not so over time-released. I'll phone them today and query. Thanks Again, Nick

Yes.
Not sure about the time release, but yes probably quicker because it's pretty soft stuff...but better than the stuff you showed....very strange.

 

[amiachicknorwat]

Maybe not so strange to the marketplace:

https://www.google.com/search?q=oys...qToJIA&biw=1016&bih=614#imgrc=jIViPrBL8XeuhM:

I just looked this up and flakes are included out there.