On average, the untreated HIV infected patient will progress to AIDS in about 5-10 years. Since 1996, the introduction of powerful anti-retroviral therapies has dramatically changed the natural progression of HIV infection to the development of AIDS.
You CAN feed your horse just hay, but you have to up the portions and it also depends upon the type of hay you are feeding. Alfalfa mix is normally the best but there again, you're goinng to have to feed more hay to make up for the not feeding grain when you are riding.
Can Horses Eat Grapes? Yes, horses can eat grapes! Whilst there is evidence to suggest that grapes are toxic to dogs there is no problem in feeding grapes to horses. In fact, grapes make an excellent treat to carry around with you when riding, brushing or spending time with your horse due to their small size.