Speaking in an interview with China National Radio on Sunday, Liang Weidong, a deputy director in Pengshan's publicitydepartment, said that the authorities were first made aware of the ducks on Tuesday.
Committee chairman Edward Leigh said the department should consider how effective its publicity was on the issue of behaviour of groups such as stag and hen parties.
He was giving evidence on 6 December 2010 as part of a session on a revision to the Department for Communities and Local Government's code of practice on local authority publicity.
The Departmentof Justice does have an exception for matters that have already received substantial publicity, or where the community needs to be reassured that law enforcement is investigating the incident.