Animal Animals : Animal Waste

1214 Words Dec 3rd, 2014 5 Pages
Animal Waste In modern society, animals, such as chickens and cows, are genetically created for human consumption in concentrated animal feeding operations, otherwise known as CAFOs (Burkholder 2007). Animal feeding operations significantly contribute to water pollution because of the millions of pounds of manure produced. Controlled animal feeding operations hold hundreds of animals that must relieve themselves multiple times a day, causing an excessive buildup of manure. 238,000 working farms and ranches in the United States are animal feeding operations and produce 500 million tons of manure each year (U.S Environmental Protection Agency 2014). Facilities with improper management experience hazardous runoff of manure that carry pathogens, such as bacteria, viruses, nutrients, heavy metals (especially zinc and copper), naturally excreted hormones, and oxygen-demanding organics and solids (Burkholder 2007). The different types of chemicals found within these animals’ feces are spread throughout the water system, ending up in nearby rivers, streams, and lakes. Many animal feces are mixed with other harmful toxins that can cause water-borne diseases such as cholera, jaundice, diarrhea, and typhoid.
Although nutrient content found within animal feces are desirable for fertilizing reasons, over application can excess soils with macronutrients, such as nitrogen and phosphorus. As mentioned in table 1, large doses of nitrogen and phosphorus can be fatal. Applying high amounts of…
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