How long is it normal for newly bought pigs not to eat?

How long is it normal for newly bought pigs not to eat? Judging from the relevant public information, it is normal for newly bought piglets not to eat because of environmental changes, great pressure and inadaptability to the new environment. However, if the piglets don't eat for more than 24 hours in a row, they need to pay attention. It is recommended to consult a veterinarian or pet shop professional in time for timely treatment.