Poultry litter is waste from any production from chickens, hens, broiler breeders, etc., which has been used as an organic fertilizer since it is cheap and is one of the environmental methods to dispose of this kind of waste.
Nevertheless, there is little research regarding the safety of poultry litter for land application and its impact on the environment.
Poultry litter is composed by feces, feathers, litter materials, feed residues, drugs, and water. All these components make this product important to use as a fertilizer due to the high nutrient content such as nitrogen, protein, and amino acids.
In the same way, poultry litter can be contaminated with microorganisms such as: