Are you hauling them in a trailer? Put down enough bedding that they have a
cushion. If it is a stock trailer, you may want to cover the sides to prevent drafts
and bedding blowing around. Sawdust or shavings, dampened to make it weighty
and stay on the floor work best for us. Even damp it is a good cushion and absorbent.
Straw is VERY slippery as bedding in a trailer, I would NOT use it. We have a 4-horse
stock, close the center gate to limit space for bouncing about.
Maybe you could purchase a bale of hay the lambs are eating now to take with you.
I would put a flake of hay in the corner to nibble for such a long trip. I would stop
and offer them a bucket of water every couple hours, let them rest while parked for a bit.
I would mix the hay they came with, with my own hay for several days, then feed my
own hay after. Should have no effects from change of feed that way. I might not give
them any pellets or grain either, as they are getting used to their new home. Restart
them on SMALL amounts after a couple days, make sure they don't get loose poop as
they acclimate to new place and foods. Runny poop makes them dehydrate, lose weight,
so you don't want that happening.