Farm animal wastes cattle

The U.S. Department of Agriculture s 1938 Yearbook of Agriculture contains these statements One billion tons of manure, the annual product of livestock on American farms, is capable of producing 3,000,000,000 worth of increase in crops. The potential value of this agricultural resource is three times that of the nation s wheat crop and equivalent to 440 for each of the country s 6,800,000 farm operators. Since then, animal wastes have been transformed from a definite asset to a liability. By 1965, the disposal of animal excreta had become a serious problem (American Chemical Society, 1969). At any given time, an estimated 11 million cattle were on feedlots, the capacities of which ranged from 1000 to 50,000 head. 

Compost can also be produced from a variety of other organic wastes. Undeliverable bulk mail has been mixed with food and yard waste for composting.278 Pulp and paper mill sludge can be composted, instead of being put into a landfill.279 Animal waste from chickens, cattle, hogs, or other farm animals, can be composted directly or used in an anaerobic system to produce biogas with compost as a residue.280 (Contamination of water by pig and poultry farms is a problem in Delaware, Maryland, North Carolina,... 

For the general population, the most likely source of exposure to elevated levels of ammonia is from the use of household cleaners containing ammonia or ammonium salts. People who live near farms, who visit farms during the application of fertilizer, or who live near cattle feedlots, poultry confinement buildings, or other areas where animal populations are concentrated can also be exposed to ammonia. Populations that live or work near a hazardous waste site that contains ammonia or ammonium salts could be exposed to above-average levels of ammonia in soil, water, or air however, the half-life of ammonia in nature is... 

Animal Feed Vegetation, Emissions and energy use. Packaging material. Fertilizers, Cattle farming Wastes during processing Recycling, Recall... 

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