Causes
Milk production uses up more calcium than the mother can replace. The risk is higher in small females with large litters.
Diagnosis
The clinical picture (a nursing female with tremors) is very indicative. Blood tests confirm the low calcium.
Treatment
EMERGENCY: administration of calcium by the vet, which acts quickly. It is usually necessary to temporarily or permanently remove the offspring from the mother and switch them to artificial feeding.
Prevention
Good nutrition for the mother during pregnancy and lactation, without supplementing calcium unless directed by a vet (it can be counterproductive). Keep a close eye on small females with large litters.

