More than 140 jobs are set to go at Ministry of Agriculture and Forestry as a result of a merger between MAF and Fisheries earlier this year.
Staff were told about the cuts this morning, with a final plan to be adopted in October.
Public Service Association national secretary Richard Wagstaff said cutting further jobs from the Ministry of Agriculture and Forestry would threaten some of New Zealand's most important industries.
He said 241 jobs were going, but there were 97 vacancies so redundancies were likely to number about 140.
The majority of the job cuts will be in Wellington where MAF has its head office, while Auckland is set to lose about 10 roles.
MAF said today it may also consolidate some offices in regions with more than one branch site as leases expired.