Farmers are being urged to take part in a new survey seeking to gauge the implications of Brexit for UK agriculture's supply of labour.
The National Farmers' Union (NFU), which created the survey, is a member of a food chain workforce strategy group, set-up after the UK's referendum vote to leave the EU.
It includes a number of other trade associations across the food and farming industry.
Its main purpose is to identify the implications of Brexit for skills and labour in the UK food supply chain.
To help build an evidence base on workforce issues and to gain insights into the current make-up, future needs and risks to supply, the survey was created.
The results will help the industry to understand the needs across the food supply chain in relation to future immigration policy. These can then be fed back to government to help shape policy development.
The National Pig Association's results of an online survey last year looked at the extent to which the pork supply chain was reliant on EU labour. It found that 58% of businesses across the supply chain employed at least one migrant worker and that more than 90% of migrant workers were employed on a full-time basis.
The survey said that 20% said their businesses would not survive without migrant labour.