Processing was scheduled to return to normal at Alliance's Lorneville plant, a company spokesman said.
Operations were affected throughout last week as workers mourned the victims of the terrorist attack in Christchurch.
There was no sheep processing last Wednesday at the company's Lorneville plant and there were reduced operations at both Lorneville and Mataura for the rest of the week.
Alliance Group chief executive David Surveyor said that, like all New Zealanders and people from around the world, they were deeply shocked and saddened by the attacks that happened in Christchurch.