Mel - I don't think there is creep feed as such in Germany, they just seem to have one word for that (Kraftfutter). From what I remember, breeds are generally much larger than here, so even lambs would usually manage the larger size of feed that's also given to their mothers. Anyway, their are so few shepp in Germany that I reckon it would hardly be worth it producing special feed for them. (In case you are wondering why it's called creep - the lambs get fed in a little extra space that's fenced off, but which they can creep into through a gate that's too small for their mothers, so they can't nick their lamb's feed.) Since they are generally larger than lambs here, you might also need to feed them more milk than is generally recommended for typical British smallholders' breeds (often smaller breeds).
You can always ask at your local feed merchant if they sell special "Kraftfutter for Laemmer".