Yes I've seen them eat apple seeds so I don't think it is a problem.
Yes, apple seeds are poisonus to horses.
No. But you'd better eat apple only, not its seeds.
SEEDS
You eat a Apple and inside of it are Apple seeds or you can buy them
The skin and meat of the apple is the part to eat. The seeds and core are to be avoided. The seeds are known to be sources of cyanide.
SEEDS
Apples, oats, carrots, etc. Make sure you dont give the horse apple seeds, they could kill the horse.
Grain
Apple seeds disappear because you eat them
Apple seeds disappear because you eat them
Apple seeds are toxic to rabbits and many animals. Apple seeds contain a cyanide compound -- this is what makes them poisonous.
Actually, there is no arsenic in apple seeds. The poison they contain is cyanide. Unless you eat hundreds upon hundreds of apple seeds nothing bad will happen.