For a Shetland, the trailer ration should stay deliberately small
Feed a Shetland pony hay in a small-hole net during a long trailer journey, and keep the quantity modest from the start. A Shetland is bred to thrive on sparse grazing, so her gut and her waistline are both designed around scarcity, not abundance. Hours in a trailer with a generous net of rich hay within constant reach can give her far more than she would eat in the same period at home, where she would at least be walking between mouthfuls.
Hard feed and treats are where Shetland journeys go wrong
Keep hard feed for a Shetland pony minimal on travel day, and brief anyone helping you not to add treats at stops. A Shetland who is an easy keeper does not need a full concentrate meal to cope with standing in a trailer, and sweet feeds, carrots, and handfuls offered by children at a service stop add up quickly for such a small animal. If she normally has a balancer or a small feed for a specific reason, keep it familiar and give it at the destination rather than layering it into the journey.
This restraint is not meanness; it is how you protect a pony whose breed is prone to weight-related problems when calories run ahead of work. A Shetland who arrives comfortable, has drunk at stops, and settles to her usual measured hay at the other end has been fed better on the journey than one who was indulged at every pause.
Water for a small pony still needs a planned routine
Offer a Shetland pony water at every stop, roughly every three to four hours, in a bucket low enough for her to drink comfortably. A bucket hung at horse height, or offered over a high trailer ramp, can quietly mean a small pony drinks nothing for hours while everyone assumes she was watered. Lower the bucket to her, hold it steady, and give her time: Shetlands travelling in company with larger horses can be put off by jostling and noise at the ramp.
Nets, height, and heat inside the trailer
Set a Shetland pony's net at her own height, tied so it cannot drop under her feet as it empties. A net rigged for a horse leaves a Shetland stretching up constantly, while a net that sags as it empties becomes a leg trap for a small pony in a moving trailer. Check it at every stop and re-tie it rather than trusting the morning's knot.
Rest stops and arrival for a Shetland pony
At a rest stop, a Shetland benefits from being led out where it is safe, allowed to lower her head, graze briefly if the ground is clean, and move her stiff legs. Short ponies brace hard in trailers relative to their size, and even ten minutes of walking changes how willingly she drinks and eats afterwards. Keep her away from rich verge grazing for long periods, though: a stop is for movement and water, not an unplanned feast for an easy keeper.
On arrival, offer water first, then her measured hay, and check her feet and legs after the travelling surface and standing. A Shetland who is bright, drinking, and picking at hay is settling as she should; one who is foot-sore, reluctant to move, or off her feed needs veterinary advice. Note what she drank and ate in KinsLe's Pet Passport, so the return trip with this Shetland repeats the restrained plan that worked rather than a helper's guess.