Yes I've seen them eat apple seeds so I don't think it is a problem.
Yes, apple seeds are poisonus to horses.
To get apple seeds, simply remove them from the core of an apple fruit. You can either eat an apple and save the seeds or extract the seeds from a sliced apple. Clean the seeds and allow them to dry before storing or planting.
No. But you'd better eat apple only, not its seeds.
SEEDS
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.
Apple seeds disappear because you eat them
Apple seeds disappear because you eat them
Apple seeds contain amygdalin, which can release cyanide when metabolized. The amount of cyanide in apple seeds is relatively low, with about 0.6 to 2.0 mg of cyanide per seed. The LD50 (lethal dose for 50% of the population) of cyanide varies, but for horses, it is estimated to be around 2 mg/kg. Therefore, ingesting a significant quantity of apple seeds could potentially be harmful to horses, depending on their weight.
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.