Puppies keep barking at night to control

If a puppy keeps barking at night, it may be because the puppy has a physical abnormality that the breeder failed to detect in time. The breeder needs to check the physical condition of the puppy in time, and if there is a problem it needs to be treated by a doctor in time. It may also be because the dog feels hungry, thirsty and cold at night. Breeders need to prepare food and water for the dog at night and keep the dog warm. It may also be because the puppy is new to an environment and has just left its mother unsuitable and scared. The breeder needs to give the dog a quiet and comfortable environment and calm the dog down.