A very common disorder in cattle and characterized by a puffed up appearance of the left flank. The cow has four stomachs, of which the rumen is the largest, its capacity being about fifty gallons in the average cow, and it is this stomach which fills with gas when a cow bloats.

Cause.—Eating green clover or alfalfa; even when a cow is accustomed to this diet, it may cause bloating if wet with dew or rain; cured alfalfa, moldy or frozen mangles will also produce bloating; the above mentioned foods undergo a process of fermentation which causes excessive formation of gas, and death may result very quickly and may be due to rupture of the stomach or the diaphragm (muscle separating the abdominal and lung cavities), but is more often due to suffocation caused by the distension of the stomach, which becomes so large that it presses the diaphragm forward against the lungs in such a manner as to stop their movement and the animal smothers. When the cow falls, it indicates that one of these possibilities has occurred and death follows quickly.

Symptoms.—Cattle usually bloat suddenly and without warning; the left flank becomes abnormally swollen, back is arched, breathing labored; sometimes the tongue hangs out and the animal bellows. When rupture or suffocation occurs the animal reels, staggers and falls, after which nothing more can be done.

Treatment.—No time should be lost. Where the stomach is enormously distended with gas so as to cause the animals to stagger and breathe very rapidly, they should be gagged. This can be easily accomplished by taking a piece of wood about two inches in diameter, and eight inches to one foot long, placing it in their mouth and retaining it in that position by tying a string on each end and placing it back of the ears. If this does not give relief immediately, puncture the left flank about five inches downward and forward from the angle of hip bone. However, puncturing should not be resorted to only in cases where death threatens the animal, as abscesses, infection and severe hemorrhage may follow. A very reliable medical treatment for this condition should be in the medicine chest of every veterinary, such as Pulv. Asafetida, Oil of Turpentine, each one ounce. Place in gelatin capsules. This is a very efficient remedy for the eradication of excessive fermentation of gases in the stomach or intestines.