While staff knew venison volumes had ''plunged'' and last year was ''a very poor season'', some would still have been shocked by the closure, he said.
He asked other employers in Northern Southland to ''come forward'' with any work for the displaced staff.
''Mossburn's a small place and with not many work opportunities,'' he said.
He cited numerous industry concerns leading to sheds shutting, ranging from killing overcapacity, declining numbers of breeding ewes and subsequently lambs, fewer bobby calves and the impact of dairy conversions.
Last season at Mossburn, a meatpacker grossed only $14,600 while one of the highest paid workers grossed about $20,000, he said.
''Some suspected it couldn't carry on like that,'' Mr Carran said.
The New Zealand sheep meat industry has been in decline over the last few years which has meant a surplus of processing capacity.
Latest data from Beef and Lamb New Zealand showed the sheep flock falling to its lowest level since the 1930s Depression.
Sheep numbers fell to 28.3m by June from 29.1 million a year earlier, compared with its peak of over 70 million in 1982. Lamb numbers this spring are forecast to drop by 2.9 per cent to 23.3 million.
The government lasts month gave the green light for China's Shanghai Maling Aquarius to acquire half of Silver Fern Farms, which is New Zealand's biggest meat processor and marketer.
- with Otago Daily Times