Obviously that person that wrote the answer before me never owned a horse.
A horse's diet should consist mainly of hay/grass and grain or feed of some sort. Sugar cubes should NOT be fed to horses. People think it's okay, but it's really not. Horses shouldn't have any people food like gingersnaps or whatever. My friends give their horses people food all the time, but it's really not good for the horse.
Some tree leaves are poisonous to horses like oak, maple and yew tree leaves. There are plants poisonous to horses, but usually horses don't eat these plants anyway. For example, buttercups are poisonous to horses, and though they exist in almost every horse's field, horses don't eat them.
There's a lot of things horses shouldn't eat. I think the question should've been what can horses eat. haha.
No, horses should not eat foxtail. Foxtail plants have stiff bristles called awns. They can become embedded in a horse's tongue and cheeks and this can result in ulcers in the horse's mouth.
Miniature horses eat what regular horses eat grass horse feed etc. Just smaller amounts. Goats will eat plants weeds and grass.
Yes, a mule can eat iceberg lettuce.
Przewalski horses will eat grasses, beneficial weeds, tree bark, and even soil to meet their nutritional needs.
Mule deer are herbivores, so they eat stuff like grass, bushes, and shrubs.
Mules like to eat Alfalfa hay. They pretty much eat everything horses eat. They have tastebuds so they may not like some things. Here are basics though carrots, apples, mints, sugar cubes ect. I have a mule of my own so..
no. if your dog eats grass, most likely he/she has diarrhea
Yes, goats eat weeds. They normally eat grass, but they cannot tell the difference between a weed and a piece of grass so they end up eating weeds.
the weeds could eat you up!
I think they eat meat and Mule deer
Yes, they do eat in the winter.
No, horses should not eat Ficus as it is toxic to them.