Boston Terriers Transporting Lettuce??

Here we get a glimpse into the secretive world of lettuce-transportation, as the lettuce-dogs of Fuzhou, China, go about their daily work.

While some parts of the world are shifting away from a dog-based model, and you will rarely see a lettuce-dog in the UK outside of Cumbria, China still transports over 99% of its lettuce by dog.
I have no idea if this is fact or fiction