Azoturia, so called from Azote, meaning nitrogen, is supposed to be due to an excess of nitrogen in the blood. A horse, in fair condition and on full feed, is doing regular work every day; finally, he is kept in the stable for a few days, not even turned out for exercise, but has his regular feed; then he is taken out to work and an attack comes on.

Symptoms. - The horse is taken from the stable full of life, and, to all appearances, in the best of condition for work. He may go half a mile or several miles when he gets sluggish, begins to sweat profusely and may appear lame in one or both hind legs. He may swell at the lower and back part of each shoulder and go stiff in front, or the muscles of the loins may be swollen and hard. He may only appear stiff or he may go down unable to rise again. He does not generally lose his appetite, but will eat and drink as if nothing was wrong, even when he is down and cannot get up.

Treatment. - Get the animal in a comfortable position, and, if he cannot rise, give him a good bed of straw but do not sling him. Give a full dose of aloes at once and draw off the urine with a catheter and you will find it the color of strong coffee. Wring cloths from hot water and place across his loins, or, if the weather is cold, use bags of dry salt made hot, instead of the cloths. Give no grain and very little hay until the purgative operates, but give all the cool water he will drink, and in each pailful put a tablespoonful of hypo-sulphite of soda. The horse should be changed from side to side occasionally and the urine should be drawn away every four or five hours. After the bowels have moved he should have a small quantity of oats and bran mash and a teaspoonful of bicarbonate of soda three times a day. When he begins to get the use of his limbs help him to get on his feet and let him out in a yard for exercise. To guard against this disease, a horse should never be allowed to stand in the stable on full feed, but should be turned out for exercise when not at work.