On talking about a horses diet he needs everything in a fair amount.
corn corn
howse answer riding level 3 - corn
energy food barley or oats
Corn usually provides the most energy for horses. also Rolled oats.
oats that's my guess
Corn is a grain that provides horses with a high amount of energy due to its high starch content. However, it should be fed in moderation as excessive amounts of starch can lead to digestive issues in horses. High-quality hay should still be the main component of a horse's diet.
Corn.
Out of the common feed stuffs in the USA, corn has the highest Mcal value. The problem with corn is it is lower in protein, especially the necessary amino acid LYSINE. So It is important to add a protein supplement if feeding corn to horses. Always remember to do any dietary changes gradually to avoid colic and founder.
Common horse feed includes hay, grains (such as oats, corn, and barley), and commercial pelleted feeds. Hay provides fiber and bulk, grains offer energy, and pelleted feeds are formulated to provide balanced nutrition. The type and amount of feed required depend on the horse's age, weight, activity level, and overall health.
The more massive horse that is moving at the same speed will have greater kinetic energy. How do you define large and small? A small fat horse may have more mass than a large skinny horse.
In comparison to its size, the horse is not the highest jumper in the world. Proportionally, it is the grasshopper.
You will need to feed the next highest amount available on the drop down menu. Or you can feed 13 pounds and then get the remainder by putting the horse in the meadow.