By National Research Council, Division on Earth and Life Studies, Board on Environmental Studies and Toxicology, Board on Agriculture and Natural Resources, Committee on Animal Nutrition, Ad Hoc Committee on Air Emissions from Animal Feeding Operations
Air Emissions from Animal Feeding Operations: present wisdom, destiny wishes discusses the necessity for the U.S. Environmental safety service provider to enforce a brand new procedure for estimating the volume of ammonia, nitrous oxide, methane, and different toxins emitted from cattle and chicken farms, and for selecting how those emissions are dispersed within the surroundings. The committee demands the EPA and the U.S. division of Agriculture to set up a joint council to coordinate and oversee brief - and long term study to estimate emissions from animal feeding operations effectively and to boost mitigation options. Their advice was once for the joint council to concentration its efforts first on these pollution that pose the best probability to the surroundings and public health and wellbeing.
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Extra info for Air Emissions from Animal Feeding Operations Current Knowledge, Future Needs
A large fraction of the crops grown in the United States are fed to domesticated animals to produce meat, milk, and eggs for human consumption. As animal populations have grown in some locations and become more concentrated on larger farms, and as humans leave urban areas, concern has increased because of possible adverse effects on human health and the environment. , 2001). In some areas, even greater changes in concentration have occurred (G. Saunders, North Carolina Department of Environment and Natural Resources, personal communication, 2002).
Weight, condition, backfat depth). Marketing contracts are distinguished from production contracts in that farmers retain ownership of the livestock and provide feed and other inputs until the livestock are delivered to the processor. It is the individual farms, whether they sell on “spot” markets or operate under contract, that produce the air emissions that are the subject of this report. Producers of livestock and poultry compete in an international market. Beef and pork are both imported and exported.
Some pork processors own pig farms, and some own pigs and contract them out to farmers under production contracts. Some Midwestern states including Iowa prohibit packer ownership of pigs prior to slaughter. Poultry. Almost all broilers (young chickens raised for meat) and turkeys are raised in buildings, as are egg-laying chickens. Martinez (2002) indicates that more than 80 percent of broilers are raised under production contracts and the remainder are raised on farms owned by the processors. He also reports that 56 percent of turkeys are raised under production contracts and another 32 percent are owned and raised by turkey processors.