They reduce flies and improve the soil, so this farmer is actually breeding dung beetles
www.abc.net.au
Farmers in Western Australia begin breeding their own stocks of the bugs, which are proving hugely beneficial to farm and animal health.

I love seeing this sort of thing in Farming. Are there any other places where dungbeetles are used as an input to a farm?

What other insects are being introduced to farms? I know of bees (pollination) and ladybirds (pest control)