Protesters are claiming a partial victory in their campaign to stop live animal exports.
Protesters meet monthly at Dover
Compassion in World Farming is holding the latest of its monthly demonstrations at the Eastern Docks in Dover in Kent on Saturday.
Campaigns director Kerry Burgess told BBC News there had been no live sheep exports from the port in the past five months.
Live exports were halted during the UK's 2001 foot-and-mouth disease epidemic but resumed in theory on 15 July last year.
Before the outbreak, the UK exported 800,000 live animals every year, Ms Burgess told the BBC.
To see such a dramatic drop is incredibly heartening
Compassion in World Farming campaigns director Kerry Burgess
But in the past year that figure had fallen to 150,000, which she described as "a great boost to our campaign".
"This is something our supporters have been campaigning against for years so to see such a dramatic drop is incredibly heartening."
CIWF is also calling for European Union Agriculture Ministers to enact a law imposing an eight hour limit on journeys of animals to slaughter.
At an Agriculture Council discussion last year, nine of the EU's 15 countries said they wanted an eight-hour travel limit.
CIWF wants the government to set up a working group of interested parties, including the charity, the sheep industry and supermarkets to see how the trade can move away from live exports to meat exports.