Horses and Oxen on the Luftwaffe Flightline

[Broncazonk]

When did teams of horses and oxen begin pulling aircraft around the Luftwaffe flightline? And what is the operational history of these furry prime movers?

Teams of horses and oxen had to be essential equipment in the East from almost Day 1, no? (Nothing better to move aircraft and fuel bowsers around in the mud and snow.)

I have an image of a team of oxen pulling a (rare) two-seat Fw-190 in late 1944, (I think,) but I can't find any more.

Bronc