No person may bring or permit any animal onto premises used for an animal gathering after the gathering has been open to receive animals for a period of 48 hours.

A veterinary inspector may by notice extend the period when animals may be permitted to enter an animal gathering.

For the purpose of this article, where more than one animal gathering is held on the same licensed premises and animals are present at all times on that premises during such gatherings, those gatherings are to be treated as one animal gathering, and the 48-hour period for the premises being open to receive animals shall apply.