My concern with situations where the best mare mangement is not practiced is the affect it is having on the in utero foals and youngsters. Making sure that mares have adequate access to good pasture, regular grain and clean water directly affects the in utero foals and their development. Horses stressed from lack of shelter, clean water and good grazing are not providing for healthy foals and as far as youngsters it’s a recipe for ulcers.
Ground feeding in mud-lots is not acceptable, feeding straight alfalfa without an other wise balanced diet and grazing is a much higher calcium level than I want for any of my horses - especially broodmares and youngsters.
Additionally when I see crowded feed lots with horses eating off the ground - I wonder how they are fed grain to fit their individual needs. Also I wonder if the horses and youngsters are getting their inoculations and worming as required.
What people have to consider is what a foal or youngster is on the outside may not be a reliable indicator of what’s going on inside. Problems relating to improper feeding during pregnancy and for growing youngsters may show up later and can pose serious issues. i.e. What you see may not be what you get. We welcome anyone to come to our farm who is considering buy a horse or pony we’ve bred to see how they grow up, what they are fed, etc. And I would certainly want to know the same for any breeder I was purchasing a broodmare (specifically in foal) or youngster from for a performance horse.