Throughout the day, farmers will be encouraged to take photos and short videos of themselves and their dairy cows and upload them onto social media channels including Facebook, Twitter and Instagram, using the hashtag #HappyCows.
Established in 2001 by the Food and Agriculture Organisation of the United Nations, World Milk Day recognises the importance of milk as a global food.
NFU dairy board chairman Michael Oakes said: “The NFU, as part of its mission to support and represent dairy farmer members in England and Wales, will look to enhance understanding of the high welfare standards within the British dairy industry, that enables the British public to consume fresh, delicious and nutritious milk and dairy products throughout the year.
Michael Oakes appears on BBC Breakfast
“With over 1.4 million dairy cows in England and Wales being cared for by 9,400 dairy farmers this is also a great opportunity for us to talk to the public about the great job we do on-farm.
“Our #happycows produce over 9 billion pints of fresh milk and 234,000 tonnes of cheddar per year and are cared for to a very high standard - World Milk Day today allows us to showcase this.
“To support us and back British farming the public should look for British dairy products displaying the Red Tractor logo on supermarket shelves.”