they should be separated from the stalk, but otherwise yes
It depends on the brand of the horse oats. If you check the ingredients, it'll list all of them, and you can look it up to see if those ingredients are safe.
So long as the oats are of the black oat type (and not just black from mold) , then they are perfectly fine to feed. Black oats are the exact same as yellow oats nutrition wise.
Yes, they are fine for horses to eat, though some horses might not like them.
Not by the bucketload, but a few every now and then will be OK.
There is no one right answer for all horses regarding if certain grains are bad for them or not. Barley is considered to be fairly easily digested and provide a less sugary source of nutrition for horses than say, oats. However horses with certain metabolic issues should avoid starchy grains altogether. But if the horse has no issues and is in hard to heavy work then barley likely won't cause any problems if fed appropriately.
No, not at all. Sickness and death of horses has occured when horses have eaten hay that has later found to have contained foxglove.
It's ok for horses to eat some Daisy's but too much of anything can be bad so just be sure they don't eat too much.
pomegranates are somtimes ok, dont give them to often becasue they are too sweet for the horses stomache to handle.
Yes its like eating grass from the ground.
Clover is OK but not really very good for horses as it contains a fungus that can cause drooling and some other problems.
if you want your horse to get sick in other words no no no!
This depends on what you mean by 'cereals'. If you mean cereal grains, then a horse can eat oats, corn, wheat, barley, etc. If you mean breakfast cereals, then a horse Can eat Cheerios, but it is not recommended to feed them any more than a handful due to the sugar content.
Yes, horses can eat lettuce but it is not recommended.
When black spots have formed on raw turkey, it is not ok to eat and needs to be discarded. The turkey has been in the freezer for too long to be edible.