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.
How to choose the right Hay: We carry 3 different basic types of hay: Grass, Legume and Grain. Grass hays like our Timothy have a high fiber content and are low in protein and calcium. It is one of the most common hays fed to horses. Grass hays should be the main component in rabbit, chinchilla and guinea pig diets.