Animal Waste

Hog factories have nurseries, sow farms, and adult hog houses. Hog houses are the huge barns where hogs spend their entire adult lives. Hog houses can be as big as football fields, and can hold 800 to 1,000 pigs packed together. Every single hog in the hog house dumps over 10 pounds of urine and feces per day, or almost 2 tons per hog per year. This hog waste falls through steel grates underneath the hogs' cages and sits on a concrete slab underneath the hog house. Here, odor and nitrogen ammonia are carried by wind to nearby land, water, and noses.

Adult Hog House

Hog Nursery


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