amount of waste produced by livestock
What are organic by-products, and how are they quantified? Organic by-products, or wastes, of the livestock industry include a variety of materials such as solid and liquid animal manures, used bedding, spilled feed, and a variety of other substances. Most livestock-associated organic by-products are animal manures. Intensive animal farming or industrial livestock production, also known as factory farming by opponents of the practice, is a modern form of intensive farming that refers to the keeping of livestock, such as cattle, poultry (including in battery cages) and fish at higher stocking densities than is usually the case with other forms of animal ... Animal Agriculture is responsible for 20%-33% of all fresh water consumption in the world today. 1/5 of global water consumption: 27%-30%+ of global water consummation is for animal agriculture. 1/3 of global fresh water consumed is for animal ag. To compare manure production between animal types or between animals of the same type, manure production is expressed in terms of 1,000-pound animal units. For reference, a single dairy cow weighs about 1,400 pounds, or 1.4 animal units. Nearly half of all the water used in the United States goes to raising animals for food (“The Food Revolution” by John Robbins). It takes more than 2,400 gallons of water to produce 1 pound of meat and only 25 gallons to produce one pound of wheat (“Water Inputs in California Food Production” by Marcia Kreith) Animal Agriculture is responsible for 20%-33% of all fresh water consumption in the world today. 27%-30%+ of global water consummation is for animal agriculture. 1/3 of global fresh water consumed is for animal ag. Air. 1  The massive amounts of excrement produced by livestock farms emit toxic gases such as hydrogen sulfide and ammonia into the air. Roughly 80% of ammonia emissions in the U.S. come from animal waste (The U.S. Environmental Protection Agency). Pollution in the Food System. Over the last thirty years, the livestock production system in the United States has undergone an. industrial revolution. The number of animals raised for meat has been steady or growing, even. as the number of farms raising animals has declined. Today, we have only a quarter the number. 130 times more animal waste than human waste is produced in the US – 1.4 billion tons from the meat industry annually. 5 tons of animal waste is produced per person in the US. [xii] Animal agriculture: waste management practices. For example, the typical daily nitrogen produced in the manure from a dairy cow has increased in the past 20 years from 0.37 pound per day per animal unit to 0.45 pound-an increase of about 20 percent.
Roughly 80% of ammonia emissions in the U.S. come from animal waste.