1, toad malnutrition due to too many toads breeding, feed can not keep up, coupled with the toads grabbing food, a part of the toads can not eat on time, the starting performance is characterized by: the young animal wasting, mental depression, slow growth and development.

2, toads do not eat in hibernation, sleeping in the water under the sediment or land under the wet soil over winter, until the next year when the temperature rises to 10-20 degrees before the end.