Animal manure refers to the waste produced by animals, such as their feces or urine. It is often used in farming as a natural fertilizer to help plants grow. Full definition
«Antibiotics use affects the abundance of resistant bacteria in soil: The use of animal manure increases the soil content of antibiotic - resistant genes.» (sciencedaily.com)
The energy inputs for the organic system were mainly from renewable sources such as animal manure and biogas manure and accounted for 98.8 percent and 98 percent of the total energy inputs in the second and third years, respectively. (fao.org)
A staggering 90,000 tons of phosphorous are released into the environment from animal manure worldwide each year, a 10-fold increase over 50 years ago. (sciencemag.org)