The Otago Regional Council is urging dairy farmers, sharemilkers and transport operators to take ''joint responsibility'' for reducing effluent spillage during the annual transfer of stock between farms.
The time of the year - May 31 and June 1 - when sharemilkers move to another farm with their cows is called ''Mooving Day'' by industry organisation DairyNZ, and is sometimes referred to as Gypsy Day.
A recent Otago Regional Council media release referred to Gypsy Day, but Dunedin city councillor Aaron Hawkins objected, saying the term ''gypsy'' was often used as a slur against Roma people.
ORC officials later said the term was still commonly used in farming circles, but because of its ''undertones'', the ORC would not use it in future.
ORC director environmental monitoring and operations Scott MacLean said dairy farmers, sharemilkers, and transport operators should take joint responsibility for keeping roads clean and waterways healthy.