Originally from: Bill
                        
Interesting reply, Sue. I was thinking that maybe you used phosphate fertilizers which had triggered the reaction. (On the basis the animal had established a tolerance to high calcium while in Derby and the move ( change in phosphate balance) had somehow triggered the reaction.

Tetany is a very complex condition, low calcium diet can result in hypercalcemia because the body overcompensates by leaching calcium from the bones. Conversely high calcium diet can result in hypocalcemia.

It is not uncommon for hypercalcemic mothers to produce hypocalcemic offspring.

Perhaps the animal will re-establish a balance given her new diet. I very much hope so.

All the best,
Bill.