Streamlined processing and standardization, typical of the evolution of industrial pursuits, has resulted in farms that are easier to run, with fewer and often less-highly-skilled employees, and a greater output of uniform animal products. However, there are unintended consequences of this type of animal production. These include contributing to the increase in the pool of antibiotic-resistant bacteria because of the overuse of antibiotics; air quality problems; the contamination of rivers, streams, and coastal waters with concentrated animal waste; animal welfare problems, mainly as a result of the extremely close quarters in which the animals are housed; and significant shifts in the social structure and economy of many farming regions throughout the country.
Industrial farm animal production systems are largely unregulated, and many practices common to this method of production threaten public health, the environment, animal health and well-being, and rural communities. Many of the problems associated with IAFP are unintentional, but that does not mitigate the need to move forward in a positive direction. Failure to address these issues will only result in a further lack of confidence in the animal agriculture industry, increased environmental damage, worsening public health, dismal animal welfare, and a grave outlook for rural communities. In this age of increased awareness of the need for economically and environmentally sustainable endeavors, animal agriculture cannot be left behind.
– Pew Commission on Industrial Farm Animal Production