I'm not sure at what stage of her life you acquired her, but drawing from other experiences I'll say if she was either born with some congenital issue (which may not be life-threatening, bothersome, or even outwardly noticeable), or perhaps when she was immature she had gone through some kind of starvation or otherwise traumatic event, she may not have what it takes to keep laying yolk-having eggs any more.
I had an Emu, for example, whose original carer died while she and her siblings were young. They lived on a mountain in some remote area, and by the time anyone had found them, some had died and the rest were severely malnourished. She went on to grow up fine, but she stayed small, and though she lays normal sized eggs, they are missing several outer layers from the shell. No amount of calcium made available to her has ever changed this.
I myself became sick a few years back due to chronic stress-induced gut problems that led to severe malnutrition, and during that time it was as if a switch was flipped and my whole reproductive system was just "shut off".
So hers isn't "off", it just seems like perhaps she's run out of yolk juju. Can you tell us more about her younger years, or if you acquired her later in her life? I am curious.
I had an Emu, for example, whose original carer died while she and her siblings were young. They lived on a mountain in some remote area, and by the time anyone had found them, some had died and the rest were severely malnourished. She went on to grow up fine, but she stayed small, and though she lays normal sized eggs, they are missing several outer layers from the shell. No amount of calcium made available to her has ever changed this.
I myself became sick a few years back due to chronic stress-induced gut problems that led to severe malnutrition, and during that time it was as if a switch was flipped and my whole reproductive system was just "shut off".
So hers isn't "off", it just seems like perhaps she's run out of yolk juju. Can you tell us more about her younger years, or if you acquired her later in her life? I am curious.